simcenter 3d v12 yenİlİkler sunumu · nastran applicability • sol 401 and sol 402 similarities...

Simcenter 3D v12 YENİLİKLER SUNUMU18 Nisan 2018

SERKAN US [email protected]

Unrestricted © Siemens AG 2017

Siemens PLM Software

Major themes for release

Simcenter 3D

Generative Design Technology Integration Nonlinear Analysis

Industry Workflows



Simcenter 3D

What’s New in Engineering Desktop

Efficient Model Build

Supporting Generative Design

Postprocessing Usability

General Enhancements

HIGHLIGHTS

Topology Optimization in Design

Convergent Modeling

Integration with HEEDS




Topology Optimization in the Design Environment

CHALLENGE:

Enable simulation-led design optimization

SOLUTION:

Topology Optimization in the

Design Environment



Topology Optimization in the Design Environment

Powerful optimization tools for

the designer

• Work on a single part or in an assembly

context

• Specify realistic manufacturing constraints

• Output geometry directly to Additive

Manufacturing / 3D printing

• Complete topology optimization process in

a very short time



Convergent Modeling

CHALLENGE:

Two-way transfer of geometric data

SOLUTION:

Convergent Modeling in Design

and Simulation



Convergent Modeling

Create Convergent Bodies from

polygon geometry

• Easily transfer CAE geometry back to

design

• Enable designer to incorporate changes

resulting from CAE studies

• Leverage Reverse Engineering toolset in

Modeling for Convergent Body operations



Convergent Modeling

Bring legacy mesh data to life

• Automatically convert meshes into polygon

faces and bodies

• Rapid creation of new geometry for orphan

meshes

• Make design changes using Modeling tools

and update the mesh

HIGHLIGHTS

Selection Recipes

Universal Connections



Page 14 Siemens PLM Software

Selection Recipes

CHALLENGE:

Create robust design-simulation updates

SOLUTION:

Automated rule-based

selections for loads and

boundary conditions



Selection Recipes

Make dramatic design

modifications and still benefit

from automated simulation model

updates

• Create new Selection Recipes using

attributes bounding volumes, label ranges or

coordinates

• Supports a wide range of potential workflows




CHALLENGE:

Manage connections in large assemblies

SOLUTION:

Create and validate connections

in a solver-neutral framework

with Universal Connections





AQA

Nastran

Abaqus

…




Assembly Quality Audit

• Specify and run multiple checks on the

assembly model

• Identify, zoom to, and fix any problems that

are identified

HIGHLIGHTS

Ribbon Toolbar

Nodal Force Reports

Simcenter Results Viewer





CHALLENGE:

Improve Postprocessing efficiency

SOLUTION:

Provide easy access to powerful

Postprocessing tools



Ribbon Toolbar

Quick Access to Key Tools

• Instant access to display controls

• More options for contour display

• Interactive legend

• Access to Preprocessing display controls

from in the Postprocessor



Nodal Force Reports

Enable for more efficient

workflows

• Preprocessing object, similar to Results

Probes

• Much more efficient than existing free body

diagrams

• Output can be used for breakout modeling



Postprocessing Usabilty

Simcenter Results Viewer

Share results across the

Enterprise

• Tailored to analysts’ needs, results can be

shared easily without a full Pre/Post license

• Use as a standalone application and import

results

• Automatically open and display results data

stored in Teamcenter

HIGHLIGHTS

Meshing enhancements

Preprocessing enhancements

Postprocessing enhancements




Solid meshing for thin bodies:

More closely match the target

geometry

Meshing

Shell meshing for thin bodies:

Improved geometry abstraction



Solid tetrahedral meshing size

controls

Meshing

Automated meshing for cyclic

symmetry



Annotations in Preprocessing

Preprocessing

Display controls



Label management extended to

more entity types

Preprocessing

Model section views include

element intersections



Edit query curves

Postprocessing

XY Graph are fully interactive

and more



Simcenter 3D

What’s New in Engineering Desktop







Simcenter 3D

What’s New in Motion

External File & Model Setup

Simulation & Modeling Improvements


Teamcenter Support for Motion

HIGHLIGHTS

Submechanisms

Analytical 3D Contacts

Flexible Links as Spline Beams

Flexible Links with ANSYS

Simulation & Modeling

Improvements



Submechanisms

Efficiently assemble and manage

modular mechanisms

• Assemble complex mechanisms from its

constituents subsystems

• Build and test each subsystem before

combining in the multi level parent

• Re-use existing models defined and owned by

multiple specialist teams



Analytical Contact

Compute 3D contact faster and with

smoother contact force results

• Does not require solid CAD geometry

• Formulations based on basic shapes

(spheres, extruded and revolved geometries)

• Stiffness and damping from material

properties

1 Solid-Solid

contact

1 Analytical

Sphere-Extrusion

Result & Gain

CPU: 36 sec CPU: 1 sec Fast; no peak due

to facetization of

CAD geometry

Pin contact right

after the slot bend



Simcenter Motion Technical Capabilities

Contacts

3D Contact

▪ Model collision between 2 bodies

▪ Liftoff allowed

Geometric Contacts

▪ Constrain geometry to specified criteria

Comparison with previous NX Motion solver:

▪ Improved tessellation control

▪ Performance and Quality Improvements:

▪ Speed up factor of 5 to 8 possible

▪ internal and customer tests

▪ 90% of tests show quality improvements



Flexible links as spline beams

Predict the nonlinear deformation of

constant-shape section elements in

large displacements

• Beam force formulation available

• Spline beam topology available for flexible

links

• Easy definition of the geometry of the flexible

beam element

• Fast solutions

• More accurate prediction of large

deformations



Spline Beam

Application on a Landing Gear

Workflow

• In a landing gear model, make the piston strut

flexible with spline beam formulation

• Run a drop test analysis

Final goal

• Check how piston strut flexibility affects drop test

results

Piston as Spline beam

Tire/Road reaction

comparing with and

without a flexible piston



Workflow

• In a rigid axle suspension model with leaf springs, make

leaf flexible with spline beam formulation

• Run a vertical travel analysis

Final goal

• Measure vertical stiffness of the suspension

• Reuse within different trailer contexts (pulled by vehicle

and load cases)

Spline Beam

Application on a trailer leaf suspension

HIGHLIGHTS

CAD-independent Motion Modeling

Text-based Modeling

Profile elements


File & Model Setup



CAD-independent Motion Modeling

Work with Motion data independent

from design data

• Motion models no longer require a master

part file

• Create simple geometries directly within the

Motion application

• Motion-based geometries can be saved in

the Motion file directly, no associated part

files required

• Associate CAD geometry to the motion

model later



Text-based Modeling

Perform motion simulation without the

need for Simcenter 3D Motion interface

• Based on Motion Definition File (MDF) – XML

format

• Extensibility to add motion elements for

vertical applications

• Perform automated computations thanks to

standalone Solver and Result Viewer



Text-Based Motion Modeling Workflow

Simcenter Motion

Solver

Motion Definition File

.MDEF (xml)Motion Results

Reader

Users Modeling Solving Post-Processing

Analyst

Methods

expert

Simcenter

Results ViewerVertical applications

Background

(Command)

Analyst

Designer

Simcenter Modeling

DOE and Optimization with HEEDS

Data and Process Management with Teamcenter

Simcenter ModelingForeground

Or

Background



Profile elements

Create 2D curves and 3D surfaces from

external files

• Straightforward re-use of existing input data

• Supporting text or MS Excel format for easy

editing of the content and direct input

associativity

• Minimize the number of required external files

through support of multiple data sets in the

same file




Automate and accelerate engineering

design processes to discover better

designs, faster

Use the Simcenter 3D portal from HEEDS to:

• Define design constraints and objective

functions

• Identify and modify design variables in

Simcenter 3D

• Take advantage of HEEDS’ large algorithm

collection to explore performance-based

design space and reach optimum design

HIGHLIGHTS

Results Viewer

Post Processing & XY Graph

Usability




Results Viewer

Provide easy access to powerful

postprocessing tools

• Lighter-weight postprocessing tool to quickly

review results

• Use for viewing results without launching full-

blown Simcenter 3D interface

• New scenario-based postprocessing to

visualize and graph data from several types

of data sources in multiple synchronized

viewports

• Automatically open and display results data

stored in Teamcenter



Post Processing & XY Graph Usability

Improved the user experience in XY

results output

• Optimize the screen space

• Maintain readability for window shrinking and

extending

• Enhancing results reviewing and reporting

with probing and legend editing

• Ease-of-use and ability to reuse of your

favorite Templates

HIGHLIGHTS

Motion Data Model in Teamcenter

Motion Study Workset




Motion Data Model in Teamcenter 11.3

Designers

Analysts

Common Data source

Comprehensive integration of motion

analysis in PLM

• Manage motion data independently of CAD

data in Teamcenter

• Concurrent design and motion engineering

• CAE Motion *.sim item revision

• BOM view relations to master part and sub-

mechanisms

• 4GD support



Summary

External File & Model Setup

Simulation & Modeling Improvements





Simcenter Structures Solutions

Simcenter 12 Structures

Main areas of focus for Simcenter 12 Structures:

• Multistep Nonlinear

• Topology Optimization

• Composite Curing

• Simcenter Environments

Products encompassed:

• NX Nastran with SOL401/SOL402

• Samcef

• Simcenter Environments for NX Nastran and Samcef

Linear Statics

Modal

Optimization

Nonlinear

Buckling

Composites



Simcenter Nonlinear FE solvers

Family tree

Samcef

solver

• Material Library

• Element Formulations

• Matrix Solvers

• Memory Allocation

• Output Formats

• Numerical Strategies

SOL 402

(+ environment)

Products

Solvers

Technologies

SOL 401

(+ environment)

Samcef

(+ environment)+ user interaction

Core solver engines and

associated architectures

• Components and algorithms

• Element and result consistency

• Leverage strength of each engine

NX Nastran

solver

Nastran modeling language (BDF) Nastran modeling language (BDF) Samcef modeling language (DAT)

NXN Multistep Samcef



NX Nastran Multistep Nonlinear Implementations

SOL 401 and 402 Core Capability

• Multi-Step solutions

• Large displacement

• Plasticity

• Creep

• Contact

• Material Models

SOL 402 Difference

• Composites

• Nonlinear mechanism

SOL 401 Difference

• Multiphysics couplings

Planned

Commonalties/DifferencesMultistep Solutions:

• SOL 401 and 402 provides general purpose non-linear solution

capability

• SOL 401 Multistep – based on traditional NX Nastran architecture

• SOL 402 Multistep Kinematic – based on integration of Samcef in NX

Nastran

Applicability

• SOL 401 and SOL 402 similarities

• Use many of the same formulations and give nearly same results

• Core set of capabilities that are the same and can be used for same

applications

• Use same Nastran inputs and outputs. Easy to convert one solution to

the other

• SOL 401 and SOL 402 differentiations

• SOL 402 can better support nonlinear kinematic behavior. To be

exposed in later releases

• SOL 401 can be used for multiphysics cosimulation



.

Topology Optimization for Analysts

SOL401

Agenda

SOL402

Samcef

Topology

Optimization for

Analysts



Topology Optimization for the Analyst – Highlights

• Hosted in Simcenter 3D Engineering Desktop enabling

complete workflow from concept to final design. The

results of a Topology Optimization is not the finish, just the

start of the design work.

• Topology Optimization technology integrated into NX

Nastran using the production proven SOL200 optimization

architecture.

• Multiple Design Areas with different materials.

• Multiple different solution types in the same optimization.

• Multiple variants of the Optimization setup to study the

impact of different options and parameters.

• Solid and Lattice zone prediction – Designing for a Lattice,

not retro-fitting.

CAD Part/Assy

Build the FE Model

Design/Frozen Area(s)

Objective

ConstraintsManufacturing

ConstraintsSolution

ParametersResults Study

Results Selection

Verification of Selected Results

Output of Smoothed Geometry

Further Design Work based on Topology Optimized results

Workflow Solution

BCC FCC EDGE

OCTA OCTET BCCUB

FCCUB BC-FC BFECB



Topology Optimization for the Analyst

• Many alternative methods to build the model.

• Mesh only, CAD geometry based.

• All NX Nastran element types to support the

Design Space.

• Multiple solution types in the same optimization

• Linear Statics

• Normal Modes

• Direct Frequency

• Modal Frequency

• Wide range of responses available for an Objective

& Constraints. These responses also have multiple

sub-options.

Total Model Weight

Design Area Weight

Total Model Volume

Compliance

Normal Modes

Bucking Modes

Displacement

Strain

Stress

Force

SPCForce

Composite Strain

Composite Stress

Composite Failure

Acoustic Pressure

Eigenvalue Modes

Complex Eigenvalue Modes

Frequency Response Force

Frequency Response SPCForce

Frequency Response Stress

Frequency Response Displacement

Frequency Response Velocity

Frequency Response Acceleration

Random Response Displacement

Random Response Velocity

Random Response Acceleration

Transient Response Displacement

Transient Response Velocity

Transient Response Acceleration

List of Responses available



Topology Optimization for the Analyst

• Manufacturing Constraints can be used to direct the

optimization to produce a specific effect.

• Planar Symmetry

• Cyclic Symmetry

• Maximum Member Size

• Minimum Member Size

• Casting Die Direction

• Extrusion

• Max Overhang Angle (for AM)

• Multiple MC’s can be included

in the Optimization. Planar Symmetry &

Extrusion MC’s

No MC’s

Planar Symmetry &

Casting Die Direction MC’s



Topology Optimization for the Analyst - Results and Downstream

• Auto creation of a Verification model based on the elements selected for smoothing.

• Interactive results smoothing, and export of a smoothed STL file.

• Results can be imported into NX CAD and used as design guidance. NX CAD provides many powerful

modelling functions for working with precise and faceted geometry.

Interactively smoothed FE Mesh Smoothed STL imported into NX CAD

SOL401



SOL 401 Shell Element Support

Linear and parabolic quads and triangles

• New element formulation

• CQUADR/CTRIAR – include drilling stiffness

• CQUAD4/CTRIA3 – Internally converted to CQUADR/CTRIAR

• CQUAD8/CTRIA6 – K6ROT can be used to add drilling stiffness

• Geometric nonlinear (large displacement/large rotation)

• Small strain material nonlinear

• Isotropic (MAT1), Orthotropic (MAT8, MAT11), Anisotropic (MAT2, MAT9),

User (MUMAT), Plasticity (MATS1), Creep (MATCRP)

• Composite Laminate

• Geometric nonlinear - no material nonlinearities or UMAT

• User defined number of layers to integrate through the thickness

• OFFSET supported for linear + geometric and material nonlinear



SOL 401 Beam Element Support

2 noded tension/compression/bending/torsion element definition

• Defined via CBAR/CBEAM

• Existing PBAR/PBARL/PBEAM/PBEAML property definitions

• Geometric nonlinear (large displacement/large rotation)

• End offsets supported

• No material nonlinearities

• Isotropic (MAT1)

• Loads

• Distributed (PLOAD1)

• Can be a follower force if defined in the element coordinate system

• Temperatures (TEMP)



SOL 401 Connector Element Support

1 or 2 noded stiffness connection

• Small displacement/rotation

• CELAS1/PELAS/PELAST

• CELAS2

• CBUSH/PBUSH/PBUSHT

• Large displacement/rotation

• CBUSH1D/PBUSH1D

• No Damping



SOL 401 Available in NX Nastran Structural Environment



SOL 401 Contact & Glue Improvements

3D shell support in contact & glue regions

Contact behavior types

• Predefined behaviors for normal and traction

• No Sliding

• Bonded/Tied

• No Separation

• Small Sliding

INIPENE Enhancements

• Specify a constant gap to enforce after initial

penetrations and gaps are removed

• Option to ramp the removal of initial geometry

penetrations in preload subcase

Contact Stabilization Damping

Used to stabilize components grounded by contact

prior to contact being fully established

Contact SLIDE output

• Total slide is now the algebraic sum of incremental

slide distance over time

• Resets to 0.0 if a contact element opens, then

closes later



Solid Bolt Preload

3D solid / 2D plane stress cut plane formulation for SOL 401

• Allows bolt load definitions to be shared between solutions and

solvers

• Automate determination of bolt plane and axis direction

• CSID and IDIR are optional inputs

• Bolt results output

• Solid bolt results written to any element connected to bolt plane

grids

ETYPE=3 updates

• CSID, IDIR and GP are optional (automatically determined)

BOLTFRC support in linear solution sequences

• Limited to LOAD type

• BOLTFOR will be undocumented (but still recognized)



SOL 401 Post-Buckling Analysis

Nonlinear Buckling

Allows analysis of post buckling and snap through

types of problems

• Nonlinear Statics step with zero delta time

• Incremental loads defined in the step are

proportional

• Loads applied in prior steps are held constant

• NLARCL defines arc length control parameters

• Structural only solution (not Coupled)

Initial Imperfection

• An initial imperfection/mesh perturbation can be

defined via IMPERF

• Individual specifications combined via IMPRADD

SOL402



NX Nastran SOL402

Introduction

SOL402 – a new NX Nastran solution for advanced nonlinear analysis

Availability through

• NX Nastran Multistep Nonlinear

• Tokens

Main advantages

- Handles large displacements, large rotations, large strains

- Multisteps including dynamic analyses

- Broad range of finite elements

- Nonlinear material laws including hyperelastics and composites



NX Nastran SOL402

Targeted markets, industries and applications

Mostly structural aspects, and in particular:

• Bolt tightening (pumps, compressors, …)

• Advanced composite design (e.g. automotive and aerospace)

• Airframe sizing

• Energy dissipation in dampers

Automations of repetitive nonlinear workflows

• Drop simulation (Electronics industry)

• Mechanical industries (compressors, gearings …)

• Engine bearing analysis (Auto industry)

• Seals (aeroengine, mechanical industry, aerospace)



NX Nastran SOL402

Simcenter environment

SOL402 is available as an NX Nastran

solution in structural analysis type, and

benefits from following capabilities:

• Import of Nastran decks

• Mesh definition in the FEM file

• Boundary conditions in the SIM file

• Solver syntax preview

• Export and solve

• HPC : DMP and SMP

• Solver monitor with abort and stop (graphs

will be available in 12.0.1)

• Post-processing

…

Time End

subcase

Time

step

size

Convergence criterion

Multiple graphs and MONVAR

in SC12.0.1



NX Nastran SOL402

Multistep solution

A unique solution can combine various subcases of the same

type or different types

Eigen mode computation on a pre-stressed

configuration

Available subcases

• Nonlinear statics

• Nonlinear dynamics

• Preload

• Modal

- Normal modes

- Cyclic symmetry

- 2D Multi-Harmonics

• Linear buckling



NX Nastran SOL402

Elements for 2D and 3D analyses

Linear and parabolic finite elements

• Solids

- Classical

- Multi-layered composites

- Cohesive elements

• Shells

- Classical

- Multi-layered composites

• Beams and rods

Connectors

• RBE2, RBE3, MPC, CGAP

• Nonlinear springs, bushings, dampers

• CELAS, CBUSH, CDAMP

• Concentrated mass

• CMASS, CONM



Comprehensive nonlinear material laws

Isotropic, Orthotropic and Anisotropic

• Linear elasticity and plasticity

- Steel, Aluminium

• Hyperelasticity (Rubbers)

- Damage

- Viscous effects

• Creep

• Composite

- Including damage

• Damage interface

- cohesive zones

Temperature dependencies

NX Nastran SOL402

Materials



• Fasteners

• Displacements and rotations

• Velocities

• Accelerations

• Manual coupling (MPCs)

• Initial velocity

Time assigned and time unassigned (step, ramp) paradigms

NX Nastran SOL402

Constraints

Displ P(t)

P1

P2

P3

SC1SC2 SC3

Time



Time-assigned and time-unassigned (step, ramp) paradigms

• Forces (including follower)

• FORCE, FORCE1, FORCE2

• Moments (including follower)

• MOMENT, MOMENT1, MOMENT2

• Bolt preloads

• On beams and solid elements

• Apply preloads, strains or displacements

• Pressures

• On faces of solids, shells and beams

• Accelerations (gravity)

• Temperatures

• Uniform distribution

• Mapping of fields

• Imported from SC Thermal

NX Nastran SOL402

Loads



• Friction

• Constant, infinite, function of temperature, velocity or time

• Large sliding

• Gap and offset control

• Ignore, eliminate, override initial distance

• Flexible or Rigid targets

• Geometry smoothing option

• Activation/deactivation of contact condition

• Stabilization options

• …

Outputs

• Contact pressures

• Contact forces

• Normal distance

• Sliding

NX Nastran SOL402

Advanced Sliding Contacts



Glue

• shell/shell,

• solid/solid,

• solid/shell

Cyclic symmetry

• Support definition

• Harmonic definition

• Recombination in post

NX Nastran SOL402

Glue and cyclic symmetry



• Integrate components into full finite element or

hybrid finite element assembly

• Compute full vehicle modes and/or frequency

response functions (FRFs)

Simcenter 12 Structural Dynamics – Solution Focus

• Pre-process and apply loads

• Perform response and contribution analysis on

components or subsystems and on full vehicle

System Level NVH Response Contribution Analysis



Modeling Enhancements

• Spot Weld, Seam Weld and Sealing Connections • Bushing, Spring, Damper, Rigid, Kinematic,

Weather Strip, Screw or Bolt connection

Universal Connections for BIW Universal Connections for NVH



Full Vehicle NVH Analysis using Simcenter 3D

• Model creation and assembly

• Mapping of loads from an measurement

sources (engine run-up and run-down)

• Perform fully-coupled and weakly coupled

Vibro-Acoustic analyses

• Vibro-acoustic analysis for both interior and

exterior Vibro-Acoustic analysis

• Solver support for low and medium frequency

range

• Support for modal, panel, grid, equivalent

radiated power and other outputs



Advanced NVH

Reduced Model Representations

• External Superelements

• Hybrid models

• Reduced component representations

• Modal (Test and/or Analytical Modes)

• FRF (Test and/or Analytical FRFs)

Benefits

• Reduced Component Representations.

• OEM / Supplier Data Exchange

• Perform path contributions

ResponsesHybrid or FE

Assembly

Modal

Representation

FE

Representation

Test Modes or

Test FRF

Representation

Loads

(Test)



NX Nastran Performance

• Improved Sparse Factorization

• RDMODES support for acoustic modes

• Direct frequency response performance

improvements

0.00

0.20

0.40

0.60

0.80

1.00

Sparse PvL Iterative

Frequency-dependent SOL 108

Normalized Other time

Normalized FRRD fluidtime

0.00

0.20

0.40

0.60

0.80

1.00

Lanczos RDMODES

Fluid-structure coupling SOL 103

Normalized other time

Normalized fluid modetime



NVH Results

• Insight

• Identify the problem

• Contributions

• Modal Contribution Analysis

• Panel Contributions Analysis

• Grid Contributions Analysis

• Path Contributions Analysis

• Energy Contribution Analysis

• Understanding Response

• Operational Deflection Shapes

• Equivalent Radiated Power

Problem

Frequency

Which Modes?Which Path?

Which Grids?Which Panels ?

Which ODS ?



Path Contribution

Force

P/F FRF

Responses



Equivalent Radiated Power



Energy Contributions

• Energy contributions by sub-assemblies

• Energy contribution by assembly components

• Energy contribution by physical property



Contextual Post Processing

Navigator Based Plot Based



View Synchronization

Simcenter 3D - Acoustics

What’s New in Release12

Realize innovation.Unrestricted © Siemens AG 2017



Vibro-Acoustics Engineering in Simcenter 12

Source – System - Receiver

ReceiverSystemSource

Mechanical Finite Element Vibro-Acoustics

Test-based

Electromagnetics

Boundary Element Vibro-Acoustics

Vibrations Acoustics

Contributions Dynamics stresses

Functions Sensors



Simcenter 12 - Source Enhancement

Acoustic sources Acoustic diffuse Field

Random plane wave loads

‘Bread and butter’

acoustic sources:

monopole, dipole,

plane wave, panel vel.

So

urc

e



Simcenter 12 - System Enhancements

BE

M

Vib

ro-a

co

us

tic

s

Transfer

admittanceF

EM

vib

ro-a

co

us

tic

s

Transfer Admittance FEMAO ATV

Modal Strongly

CoupledModal Weakly Coupled

Fast Multi-pole & H-

matrix

Sy

ste

m



Simcenter 12 - Receiver Enhancements

Scenario postprocessing New plots

Re

ce

ive

r



Solutions for Powertrain Acoustics

• Transfer admittance to model perforated

ducts

• TL from post-processing scenario, or from

new NX Nastran cards for incident,

transmitted power and transmission loss

• Shell Noise through VA Response (SC11)

Intake / Exhaust

Muffler Transmission Loss (FEM)

• FEM ATV for fast multi-RPM acoustic

response analysis (beta)

• BEM vibro-acoustic response with structural

mode set

• Can be used for any rotating machinery

Engine and Gearbox

Fast Acoustic radiation



Solutions for Random Vibro-acoustics

• Fast creation of diffuse acoustic field (FEM /

BEM), random vibration and force loads

(FEM)

• PSD / RMS output: accelerations

(FEM/BEM), forces and stresses (FEM)

Spacecraft Vibro-Acoustics

• Fast creation of diffuse field, automatic

export to NXNastran (random subcase)

• Directly retrieve results from NXNastran:

• INPOWER: incident power

• TRPOWER: transmitted power

• TRLOSS: transmission loss

Panel Transmission Loss (FEM)



Supporting Higher Frequencies and Larger Geometries

• Two extra solvers: Fast Multipole BEM and

H-matrix BEM (Airbus Group Innovations)

• For mid and high frequency problems and/or

large geometries

• submarine scattering, aircraft ramp noise,…

High frequency audio

Submarine, aircraft scattering

• FEMAO = FEM Adaptive Order

• Faster than standard FEM + constant

(frequency independent) accuracy

• For interior and especially exterior acoustics:

pass-by noise, pedestrian safety warning,

submarine scattering, ..

Pass-by noise

Pedestrian safety warning sounds



Supporting Enclosure Interior and Exterior acoustics

• Interior FEM vibro-acoustics: including

contribution analysis from panel and modes

• Structural excitation or acoustic excitation:

exterior to interior acoustics - tailpipe noise

Cabin Acoustics

• FEM AML, with FEM AO to make simulation

faster

• or BEM

• Both acoustic and vibro-acoustic paths

Enclosure Design



Introducing Simcenter™ portfolio for

Predictive Engineering Analytics

Simcenter™



Simcenter 3D

3D CAE for the digital twin

Linked with system simulation

Multi-discipline integration

Best-in-class simulation modeling

Openness and scalability

Leverage industry expertise



Major themes for release

Simcenter 3D

Generative Design Technology Integration Nonlinear Analysis

Industry Workflows

HIGHLIGHTS

Enhanced Temperature-dependent

thermal couplings

Enhanced Orbital Thermal

Analysis

Simcenter 3D Thermal



Enhanced Thermal Couplings

Explicitly select

whether primary

region temperature

or average

temperature of both

regions

Primary Region Secondary Region

Explicitly specify

coupling side for thermal

couplings from shell (2D)

meshes

Temperature-dependent

thermal coupling



Enhanced Orbital Thermal Analysis

Model the variation of

environmental heat flux

with planet latitude and

longitude

Model radiating surface

transformation with

multiple thermo-optical

properties

HIGHLIGHTS

Enhanced CFD Modeling

Simcenter 3D Flow



Enhanced CFD Modeling

Rear of Enclosure

Screen Simulation Object

Front of Enclosure

Pressure drop across screen

between disjoint air meshes

Define screens on disjoint fluid

meshes

Simulate flaps and bursting

membranes

Hybrid wall function

Model mass transport through

semi-permeable membrane

HIGHLIGHTS

Enhanced Surface Wrapping

Simcenter 3D Advanced Fluid

Modeling



Enhanced Surface Wrapping

Automatic cavity detection

and wrapping from cavities

Decoupled

surface wrap

resolution

and mesh

density

Automatic

feature edge

detection



Leveraging the value of simulation of composites

Leading to more innovative designs at lower costs & risks

Connect and drive your composite engineering activities in a new way

boosting efficiency and output

• Accelerate your simulation process trough streamline process

• Support efficiently design change

• Usual & Advanced simulation

Analysis and Performance Simulation Advanced composite development

engineering process

CAD3D

Sim.

Data base

Design methodologies

Data

Mgt

Process

Mgt



Simcenter 3D Composite

What’s new in Simcenter 12

Pillars of Highlights

Assembly Label Manager

Build and manage large analysis model assemblies

using a multi-level approach

including composite data

Lay-up Nesting

Support composite assemblies

with multiple mold faces

and dissimilar CAE reference surfaces

Workflow Simplification :

Accelerate and facilitate

the model set up and analysis

Post-processing Scenario

for composite progressive damage simulation

Curing simulation of composites

New workflows support

Woven ply support

Import of CATIA ply groups

Most frequent and common applications Advanced applications

Workflow

acceleration



.

Distributed CAE Assembly Model with composite

Laminate Nesting

Agenda

Composite workflow acceleration



Distributed CAE Assembly Model

Assembly Label manager - Plies extension

Build and manage large analysis model assemblies using a multi-level approach including composite data



Distributed CAE Assembly Model

Assembly Label manager - Plies extension

• Relabel composite plies at the assembly level

• Individual FE component model with their own set up of data

• Analyze results components by components

SC11

Display of ply 1 of the full

structure (several plies with

the ID 1)

SC12

Display of ply 1 of one

component of the assembly



.


Laminate Nesting

Agenda




Efficient management of global layups

Laminate Nesting support

Efficient composite model management : Support composite assemblies with multiple mold faces and

dissimilar CAE reference surfaces

IMAGE d’un modèle avec plein de sublaminate

• Concatenate several Laminate Nestings

into a single global layup

• Add and manage reinforcements

• Manage a complex composite

assembly made from several cures

with multiple mold faces and

associated laminates

• Support non-manifold CAE geometry



Efficient management of global layups

Laminate Nesting support

Base Part

Reinforcement

...in a single layup



.


Laminate Nesting

Agenda




Composite workflow improvement

Help the user to accelerate and facilitate the model set up and analysis

SIMCENTER 11

SIMCENTER 12

Laminate composite

advance post report

extension

Laminate modeler &

Draping definition



Composite workflow improvement

Projection solver

The ply’s primary direction can be defined:

• From the element’s material orientation (SC11)

• Using a CSYS (in SC12)

Simcenter-centric Edit in Excel now

replaces tedious import and export of plies

Select a coordinate system

to display SC12

Advanced

applications



.

Woven material

Curing analysis extension

Agenda

Post-processing scenario for damage analysis

CATIA ply groups



Improved Woven Material Model

• The most basic properties of a woven ply material will

change as the angle between the warp and weft fibers

varies

• For example, by laying the fabric on a doubly-curved surface

• This shearing effect is not considered in typical material

characterization efforts

• Strength knockdown factors are typically applied, which can be

overly conservative

Increase your simulation accuracy by taking into account the woven fiber shear



Improved Woven Material Model

This features follows the usual

This new material model allows users to accurately predict

sheared material properties

• Elasticity

• Strength

• Thermal Expansion

• Thermal Conductivity

No sheared material properties are required

• The code uses the nominal, unsheared material properties

No consituent (fiber/matrix) properties are required

• These are reverse-engineered

• Constituents are reformed in sheared form

• Invoke a non-orthogonal formulation for failure metric

computation



.

Woven material


Agenda


CATIA ply groups



Curing workflow extension

Support of two new workflows in Simcenter User interface

De-molding simulation (Deactivate LBCs & Contact)

De-molding

Support SC Thermal results as Boundary conditions

(using Simcenter fields)

Autoclave

simulation

More accurate Boundary condition & time evolving boundaries condition

Exchange data between SC Thermal

Flow and SAMCEF solver Deactivation of contact condition



.

Woven material


Agenda


CATIA ply groups



Post-processing scenario for progressive damage simulation

Increase your understanding of progressive damage results

From a Microsoft

Excel way of

working …

… to a fully Simcenter

integrated approach!

Fiber breaking

Matrix cracking

Delamination

Decohesion

fibre/matrix



.

Woven material


Agenda


CATIA ply groups



Ply group import

Simcenter 3DDesign

Exchange

CPD

▪ Ply group NX Nastran

LMS SamcefFibersim

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0CAcQjRxqFQoTCPb02oSu-sgCFYE6PgodL3kP3A&url=http://www.skywarder.eu/blog/en/2015/01/31/skyward-cooperating-msc-software/&psig=AFQjCNEP9ZfyKptQ_EvBVn_91gKX_O-P_Q&ust=1446849897111898

Solver specific



Simcenter 3D

Siemens Finite Element support for composite

Analysis

capabilitiesSamcef solver

NX

NASTRAN

SC

Response

Dynamics

SC

Laminate

Composites

Dynamics

Linear

Linear static ● ●

Buckling ● ●

Modal ● ●

Harmonic ● ●

Transient ●

Random ● ● ●

Nonlinear

Static ● ●

Quasi-static

Transient kinematic

Transient dynamic

(implicit)

Progressive Damage

Simulation

Damage interface ● ●

Damage ply ● ●

Damage coupling (interface&

ply) ●

Curing ●

Genera

l fe

atu

res

Specific

app.



New in Simcenter 3D release 12

NX Nastran SOL402: Advanced Nonlinear NX Nastran Solution

• 3D – Plane stress – Plane strain –

Axisymmetric

• Multistep – NL Statics, NL Dynamics,

Modal, Preload, Buckling

• Import, export of bulk data files

• Nastran OP2 result files

• Post-processing in Simcenter

• Nonlinear materials including composite

• Solids, shells, beams

• Loads and constraints

• Contact, gluing, bolts

Included in Simcenter 12

NX Nastran environment

Advanced Nonlinear

Solution

Post-processing in

Simcenter



New Solver Support

SOL401 & SOL402 : Composite support

• PCOMP: laminate definition

• PCOMPS: laminate for solids

• PCOMPG: global ply definition

• PCOMPG1: global ply definition specific for SOL401 and SOL402

• CHEXCZ, CPENTCZ: specific elements for cohesive zones

• PSOLCZ: properties for cohesive elements

• MATCZ: material properties for cohesive elements: Polynomial, bitriangular or

exponential laws

• MATDMG: Damage material properties: UD or EUD

• MATFT: ply failure theory (Hill, Hoffman, Tsai wu, max strain, max stress, max

shear stress)

• PFRESULTS: results for damage

• CZRESULTS: results for cohesive elements



Simcenter Laminate Composites Dynamics

Base-driven random

simulation

Peak ply stresses, strains

Peak ply failure metrics

Specify desired confidence

NX Nastran failure theories

2D and 3D laminates

Parallelized solver

High-performance integration

algorithm

• Base-driven harmonic

simulation

• Efficient analytical

computation of phase-

consistent results

• Ply failure metrics

• Von Mises stress

• Peak results over entire

frequency range

• Parallelized solver

Simulate shaker testing with best-in-class performance and accuracy



Samcef solver and Samcef environment in SC12 enhancements

Highlight (on the top of already explained)

• New Finite element support Solid Ply :

• Support of new first ply failure criteria LARC04 :

• based on physical models for each failure mode and distinguish between fiber and matrix

failure for different transverse fiber and matrix tension and compression modes

• Import an existing solver deck with composite and recreate a Simcenter session

• Performance improvement of the solver deck generation

• Performance improvement in post processing support

Solver

Samcef

env.• Several planes

• Multiple solution

support

• Convert from Nastran, Ansys,

• Recovery result

• Static / Dynamic SE

2D Analysis : Axi-symmetric; Plane

Stress; Plane Strain

External Superelement support in

Assembly FEM



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INORES

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simcenter 3d v12 yenİlİkler sunumu · nastran applicability • sol 401 and sol 402 similarities...

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