simulation in design - dive into ansys simulation
DESCRIPTION
Simulation in Design - Dive into ANSYS simulationTRANSCRIPT
© 2011 ANSYS, Inc. October 10, 20111
Simulation by Design
Dive into ANSYS simulation
Mike Slack
© 2011 ANSYS, Inc. October 10, 20112
Question Simulation Insight
© 2011 ANSYS, Inc. October 10, 20113
• Physiological geometry
• Complex STL geometries derived from MRI scans
• Combine with devices
Complicated Geometries
© 2011 ANSYS, Inc. October 10, 20114
Cut Cell Techniques
A slice through a human nasal cavity meshed using the cut cell meshing approach. Local refinement based on proximity and curvature.
© 2011 ANSYS, Inc. October 10, 20116
Respiratory modelling & devices
© 2011 ANSYS, Inc. October 10, 20117
Extended Airways
© 2011 ANSYS, Inc. October 10, 20118
Dry Powder Inhaler
Fine drug particles are attached to larger carrier particles.
Large particles are easier to mobilise and store.
Animation showing the mobilisation of particles during patient inhalation
Courtesy of Sanofi-Aventis – Joint presentation at Respiratory Drug Delivery conference (2008)
© 2011 ANSYS, Inc. October 10, 20119
Detachment forces
0.0%
2.0%
4.0%
6.0%
8.0%
10.0%
1.E-04 1.E-03 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02
Maximum moment experienced / Maximum withstandable moment
Dis
trib
utio
n f
un
ction
.
Carrier
Wall
Vimp
an
Ff
N
.
at
R
By predicting the forces exerted by the carrier on the attached particles this technology allows binary drug systems to be tailored to suit the delivery technology.
Red means detachment occurs
Detachment point
Courtesy of Sanofi-Aventis – Joint presentation at Respiratory Drug Delivery conference (2008)
© 2011 ANSYS, Inc. October 10, 201110
Ventilation in Medical Equipment
Respiration process under the oxygen hood within the
infant incubator
© 2011 ANSYS, Inc. October 10, 201111
Ventilation in Medical Equipment
Velocity profile on the fan outlet
Path lines coloured with temperature
inside the heater chamber
Schematic graph of the incubator
components
© 2011 ANSYS, Inc. October 10, 201112
Fabrics and textile design
© 2011 ANSYS, Inc. October 10, 201113
Joint prosthetic understanding and design
Trabecular tensile and compressive strain
Sliding distance for osteo-integration Von Mises stress in the prosthesis
© 2011 ANSYS, Inc. October 10, 201114
Manufacturing processes
Blow molding
Extrusion multilumen tubes
Stress distribution in pharmaceutical packaging
© 2011 ANSYS, Inc. October 10, 201115
Spine Modelling
Scan geometery provided Courtesy of Materialise
© 2011 ANSYS, Inc. October 10, 201116
Maximum principal stress distribution
Stent Artery configuration
Structural results
Drug elutingWall diffusion
© 2011 ANSYS, Inc. October 10, 201117
Modelling flow into porous dressings
• Consumer products – diapers, napkins, feminine hygiene, stain removal and wound dressings
Rayon fibers used in textile industry
Woven scaffold
© 2011 ANSYS, Inc. October 10, 201118
Evaluating the flow of liquid into two different woven materials
These animations show liquid spreading in a (nonwoven) porous
pad with different resistances in different locations.
© 2011 ANSYS, Inc. October 10, 201119
© 2011 ANSYS, Inc. October 10, 201120
Without
Flight sock
With
Flight
sock
© 2011 ANSYS, Inc. October 10, 201121
Simulation fits many different questions and scales
A broad range of physics are available in the tool box
Value of insight = designed with confidence
Summary