kisssys 03/2014 tutorial 1 · kisssys 03/2014 – tutorial 1 two stage helical gearbox 07/11/2014...

KISSsys 03/2014 – Tutorial 1

Two Stage Helical Gearbox

07/11/2014

KISSsoft AG

Rosengartenstrasse 4

8608 Bubikon

Switzerland

Tel: +41 55 254 20 50

Fax: +41 55 254 20 51

[email protected]

www.KISSsoft.AG

10.11.2014 2 / 31

Foreword

The tutorial has three parts to be studied in this order. To finish this tutorial it will be expected the user has already basic knowledge of the KISSsoft Gearpair and Shaft calculation.

Part I

shows how to start KISSsys.

Part II

illustrates the use of an existing KISSsys model. Furthermore, basic functions and data manipulation

are described which will later be used in part III.

Part III

explains techniques how to build a KISSsys model of a two stage gearbox.

During the study of this tutorial, questions may arise or problems may occur. The KISSsoft customer support

can be reached through the address and phone number given above.

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Contents

1 Start KISSsys ........................................................................................................................................... 4 1.1 Start program .................................................................................................................................. 4 1.2 Definition of project folder ............................................................................................................... 4 1.3 Open a KISSsys model .................................................................................................................. 5

2 Toolbars and views .................................................................................................................................. 6 2.1 Views in KISSsys ............................................................................................................................ 6

2.1.1 Views and windows .................................................................................................................... 6 2.1.2 Connection between 3D-View, schematic and tree structure ..................................................... 7 2.1.3 Using the 3D-View ...................................................................................................................... 8 2.1.4 Refresh All .................................................................................................................................. 8

2.2 In- and output of data ..................................................................................................................... 8 2.3 Starting KISSsoft analysis .............................................................................................................. 8

3 Use of the model „001-KISSsysTutorial“ .................................................................................................. 9 3.1 Calculate kinematics ....................................................................................................................... 9 3.2 Analysis of root and flank safety factors ......................................................................................... 9 3.3 Changing gear data, earing data and shaft geometry .................................................................. 10

4 Task ....................................................................................................................................................... 11 4.1 Structure of the system ................................................................................................................. 11 4.2 Sketch of the system .................................................................................................................... 11 4.3 Start KISSsys ............................................................................................................................... 11 4.4 Loading the templates .................................................................................................................. 12 4.5 Principles ...................................................................................................................................... 13

4.5.1 Elements, Templates ................................................................................................................ 13 4.5.2 Copy, rename, delete ............................................................................................................... 13 4.5.3 Insert ........................................................................................................................................ 13 4.5.4 Naming conventionen ............................................................................................................... 14

4.6 Insert machine elements .............................................................................................................. 15 4.7 Add constraints ............................................................................................................................. 17 4.8 Add external elements .................................................................................................................. 18 4.9 Calculation definition .................................................................................................................... 20

4.9.1 Gear pair definition ................................................................................................................... 20 4.9.2 Definition of the shaft geometry ................................................................................................ 22

4.10 3D-View and positioning ............................................................................................................... 22 4.10.1 Positioning of the shafts ........................................................................................................... 23 4.10.2 3D-View .................................................................................................................................... 24

5 User Interface......................................................................................................................................... 25 5.1 Table with information on gear and bearing data ......................................................................... 25 5.2 User Interfaces ............................................................................................................................. 26

5.2.1 Insert a UserInterface ............................................................................................................... 26 5.2.2 Adding text ............................................................................................................................... 26 5.2.3 Display of results ...................................................................................................................... 26 5.2.4 Execution of functions .............................................................................................................. 28

6 Completing the model ............................................................................................................................ 31 6.1 Setting 3D-View ............................................................................................................................ 31 6.2 Display of the coupling ................................................................................................................. 31 6.3 Definition of the force acting on the output shaft .......................................................................... 31

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Part I, Start KISSsys

1 Start KISSsys

1.1 Start program

Start KISSsys through Windows-Start Programs KISSsoft 03-2014 KISSsys.

1.2 Definition of project folder

KISSsys uses projects to manage the files. Project folder simply defines where KISSsys models and the

respective KISSsoft files are saved. Before a KISSsys model can be opened or created, the project / folder

where the model will be saved is to be defined.

File Open project folder, the project folder will be defined.

If there is no Project folder defined everything will be saved in the default folder. E.g. Users KISSsoft.

In the following figure it is shown the project folder for this tutorial. In this case the folder is

C:\Programme\KISSsoft 03-2014\KISSsys\Tutorial. After the selection, this is confirmed and KISSsys opens.

Figure 1. Selction of project folder

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1.3 Open a KISSsys model

After having selected the project, the KISSsys models available in this project can be opened through the

menu using File/Open. The message whether the current file should be saved or not can be answered

negatively since KISSsys starts with an empty file. Now, the KISSsys model KISSsys-Tutorial-001.ks is

opened, and KISSsys should look as follows:

Figure 2. Surface after opening a model in KISSsys

Note that models should be opened only from the current project folder.

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Part II, Using an Existing Model

2 Toolbars and views

2.1 Views in KISSsys

2.1.1 Views and windows

KISSsys features the following views:

Menu Short-cut Icon Tabs UserInterface 3D-View

Tree structure Messages Tables Schematic

Figure 3. Views available in KISSsys

The Classes, the Model (tree structure) the Templates, the Messages, the KISSsoft (Messages from the

KISSsoft calculations) and the Diagram can be shown or hidden by using the menu View:

Figure 4. Show or hide tree structure, messages and schematic

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The tables, user interfaces and 3D view can be minimised, restored and closed. Using the menu „Window“,

navigating between the windows is possible. A closed window can be shown by a right mouse click on its

corresponding element in the tree structure and then selecting “Show”.

Another way to reopen the window is to double click on the element in the tree structure.

2.1.2 Connection between 3D-View, schematic and tree structure

If an element in the tree structure is selected (left mouse click), it is highlighted red. Also, in the 3D view, a

local coordinates system is shown in the centre of the element.

Figure 5. Selecting an element in the tree structure highlights it in the 3D view

If an element is selected in the schematic, it is highlighted in the tree structure and in the 3D view.

When moving the cursor over the elements of the schematic, the name of the respective element is shown.

With a right mouse click, the element can be modified if you are in Administrator mode (see after).

Figure 6. Information about the element in the schematic

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2.1.3 Using the 3D-View

In the 3D view, the gearbox can be rotated, moved and zoomed (left, centre, right mouse buttons

respectively).

2.1.4 Refresh All

Data and graphics are updated when the „Refresh All“ button is pressed.

This command results in an update of for example the 3D view after having changed some parameters such

as the tip diameter of a gear or that the power flow is highlighted in the schematic after the calculation of the

kinematics.

2.2 In- and output of data

In the user interfaces and the tables, the following text elements are used

Feature Type Use

Black Output / Text Using black, results are shown that change with the

analysis. Comments are also in black.

Red Input In these fields, values can be entered directly or they can

be chosen from an underlying list (double click). The

values entered or chosen are then stored in the respective

variables.

Grey background Functions Functions are executed through double-click (left mouse

button)

2.3 Starting KISSsoft analysis

Through the tree structure, the KISSsoft analysis can be started by a double click on the respective symbols

as shown below:

Figure 7. Symbols of KISSsoft analysis

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3 Use of the model „001-KISSsysTutorial“

3.1 Calculate kinematics

The kinematic analysis is started through double click on the function „Kinematic“. All speeds, torques and

bearing forces are calculated. Based on the input speed, the gear data and the output torque, the resulting

reduction „i tot“, the input torque and the output speed are calculated and shown:

Figure 8. Results in the UserInterface after execution of kinematics analysis

The speed at the input and the torque at the output can be defined directly. Note that the sign of the torque

defines the direction of the power flow.

After having changed the values for input speed and output torque, the kinematics should be analysed again

by executing the function „Kinematic“ in order to get the corresponding results.

3.2 Analysis of root and flank safety factors

On execution of the function „Strength“ (double click) the kinematics are calculated again, followed by the

strength analysis of the gears, bearings and shafts. The resulting safety factors for the root and flank are

shown in the user interface (based on a lifetime of 20’000h):

Figure 9. Output of resulting safteies fr root and flank

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If the analysis is to be performed for a different lifetime, the required lifetime should be changed in KISSsoft.

Using the function „GP1“, access to KISSsoft is available where the lifetime can be changed from 20 000h to

e.g. 30 000h (repeat for second stage). In order to have the new value accepted, „Calculate” or „F5” has

to be pressed, then exit KISSsoft:

Figure 10. Changing the required lifetime

After that, the calculation of the safety factors can be repeated by double click on „Strength“.

3.3 Changing gear data, earing data and shaft geometry

The gears, shafts and bearings can be changed in KISSsoft in the usual manner. For this, double click on a

KISSsoft symbol in the tree structure in order to get into the KISSsoft analysis of the desired element. Here,

for example fine sizing of gears can be executed or the type of bearing may be changed in the bearing

analysis. In order to make the changes permanent, “Calculate F5” has to be pressed before exiting KISSsoft.

The number of elements to be arranged on a shaft may only be changed in KISSsys directly.

Note that elements (gears, bearings, couplings, …) shown in the graphical shaft editor

must not be removed or added since the number of elements on a shaft is defined

in the tree structure within KISSsys.

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Part III, Building a model

4 Task

In KISSsys, a model of for the strength analysis of a two stage helical gearbox with analysis of the gears,

bearings and shafts is to be built. This model is to be used for analysis or dimensioning such systems.

In the end, the model built will correspond to the model „KISSsys-Tutorial-001”.

4.1 Structure of the system

The new system is assembled from elements such as gears, shafts, etc., and the corresponding KISSsoft

calculations. These elements are taken from a library, called "Templates".

4.2 Sketch of the system

Before starting with the model, it is recommended to sketch the system. This will be used later for the element

name definition.

Figure 11. Schematic

4.3 Start KISSsys

First a new project folder is defined, e.g. C:\MyTutorial. Then, start KISSsys with this folder as project.

KISSsys is then opened with an empty model. Using File Save from the menu, this file is given a name,

e.g. „KISSsys-Tutorial-001“.

In order to be able to build a new model, KISSsys should be used in the administrator mode, which is activated

by pushing this button or in the menu Extras:

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Figure 12. Change to Administrator mode

If the option „Administrator“ is not available, the respective license is missing. Contact KISSsoft AG.

4.4 Loading the templates

The „Template“ with the standard default library element, will be open automatically when changing to the

Administrator mode. If a specific template shall be opened, then go to File Open Templates.

In the „Templates“, all elements available in KISSsys are now listed:

Figure 13. Element library after loading the default template

After having imported the templates, the model can now be assembled.

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4.5 Principles

4.5.1 Elements, Templates

In KISSsys, a model is assembled from different elements. These elements are arranged in a tree structure.

The following types of elements are available:

Folder

Analysis modules for the respective machine element (light blue)

Machine elements (grey symbols)

Connections (constraint elements in grey)

Graphics

Tables

They are available from a library, called the templates. The templates may be modified by the user

(recommended for experienced users only).

The template is based on the classes. The User or the Administrator has no permission to change the classes.

Usually it will not use.

The user can switch between the elements arranged in the tree structure and the templates using the tabs as

shown below, or for easier use tabs can be arranged to be seen simultaneously:

Figure 14. Model and Templates

The model is arranged in the „Model“ - section.

4.5.2 Copy, rename, delete

User can select how to copy elements from templates to the model. You may drag and drop elements or you

can copy and paste elements from the templates to the tree structure using „Ctrl+C“ / „Ctrl+V“ or, with right

mouse click, „copy“ / „paste“. Delete elements by selecting them and press “Del” or right mouse click and

“Delete” element. Renaming an element is performed by right mouse click and selection of “Rename”.

This is the classical method.

4.5.3 Insert

In this menu are 4 assistants and it is only available from KISSsoft 03-2014.

Figure 15. Menu Insert

Note: Renaming an element will result in the connections to this element being invalid.

Renaming elements is hence not recommended.

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The menu Insert „Parallel shafts assistant“ is an assistant to build a helical stage gearbox. It will guide the

user step by step through the whole model. The tables are not part of this assistant.

As explained in the previous chapter, the Template which is loaded will be used to add elements to the tree

structure. With the third assistant “Element-Box”, the most common elements from the templates will be find

in here.

Figure 16. Parallel shafts assistant and Elements-Box

The user has to define the starting position in the element tree, to add elements from the two assistants to

the model. This will happen by clicking the element in the assistant.

4.5.4 Naming conventionen

Under the menu Extras Settings Elements, the default settings can be changed here for the automatic

name settings, when a new element will be add to the model. In this tutorial the default setting will be used.

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4.6 Insert machine elements

The modelling of this tutorial will be used with the „Parallel shafts assistant“. All elements will be add to a

group. The element kSysGroup will placed on the root directory (_O.). During the insert procedure the name

can be changed e.g. to „GB“.

Figure 17. Add a kSysGroup

Menu Insert Parallel shafts assistant

1. Root directory will be chosen automatically

2. Add kSysGroup

3. Rename the group with „GB“

4. In the element tree the new group will be shown

5. In the schematic the new group will be illustrated as a box

The „Parallel shafts assistant“ will guide the user step by step to the finished model. Now add a new shaft to

the group „GB”. Additionally under the group the new shaft will be shown. This element is necessary for the

gears, bearings and couplings.

The use of this assistant is to finish shaft by shaft. The configuration for the shaft looks as follow.

1. Add shaft shaft1 machine element can be add to the new shaft

2. Add machine element to the shaft1 with following element

a. 1 x Coupling (kSysCoupling)

b. 2 x Bearing (kSysRollerBearing)

c. 1 x Gear (kSysHelicalGear)

The order of the elements will be displayed as it adds to the shaft. The order can be set in the shaft

calculation later to the origin position.

3. Add the kSoftShaft calculation to shaft1

4. Go one level up to the main assistant

1

2

5

4

3

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Figure 18. Figure 4.6-1 Configuration shaft 1

Finish the model according to the given configuration.

„shaft2“



a. 2 x Bearings (kSysRollerBearing)

b. 2 x Gears (kSysHelicalGear)



„shaft3“



a. 2 x Bearings (kSysRollerBearing)

b. 1 x Gear (kSysGear)

c. 1 x Force (kSysCentricalLoad)

d. 1 x Coupling (kSysCoupling)

The order of the elements will be displayed as it adds to the shaft. The order can be set in the shaft

calculation later to the origin position.



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Figure 19. Shaft definition

4.7 Add constraints

In the main menu of the assistant, is now the constraint icon available to connect force elements together.

Under the Main menu in the assistant Conditions kSysGearPairConstraint, can be set the connection.

Figure 20. Gearpair constraint

1. Add gearpair constraint kSysGearPairConstraint

2. Rename it „GP1“

3. Pinion Element 1 (z1)

4. Gear Element 2 (z2)

5. OK

6. Add KSoftHelicalGearPair to the constraint


Do the same steps for the second stage (“GP2”)

1

3

5

7

6

4 2

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4.8 Add external elements

To finish the model it is necessary to add input and output elements. In KISSsys this element represent by

kSysSpeedOrForce. This element will be placed at the same level as the group „GB“. The group itself is the

gearbox, which is connected for example with a motor and generator. In this tutorial the input speed and

output torque are given.

One level up, before adding the external elements.

Figure 21. Main Menu

Figure 22. Add In- and Output elements

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Input element:

1. Add kSysSpeedOrForce element rename to Input

2. The Input element will be connected with the coupling from the „shaft1“

(^.GB.shaft1.coupling1)

3. Speed constraint yes. The speed is 2000 1/min

4. OK

Figure 23. In- respective Output dialog

Output element:

1. Add kSysSpeedOrForce Element rename to Output

2. The Input element will be connected with the coupling from the „shaft3“

(^.GB.shaft3.coupling2)

3. Torque constraint yes. The torque is -1000 Nm

4. Power/Torque input Torque with sign. The idea of this model is, to define it for several scenarios.

This is the reason why it is not defined as Torque driven. With this possibility it will be easy to define

the power flow with the sign of the torque.

5. OK

6. Close the assistant

The model is now finished without tables.

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Figure 24. Two stage helical gearbox before and after the kinematic calculation

To see the power flow in your schematic run the kinematic calculation. In this step you can check the

functionality of the power flow.

4.9 Calculation definition

The calculation shall be started always with the gear calculation first. The calculated data from the gear

geometry will be forwarded to the shaft calculation. As defined in the task, this model will be used for the

gearbox rating and recalculation. The gear and shaft data will be kept simple in this tutorial. The modification

will be done by the user, which has usually no influence on the model.

4.9.1 Gear pair definition

The gear data will be defined with the rough sizing in KISSsys. In every kSoftHelicalGearPair is an additional

function „GearSizing“ available. With this function KISSsys will generate a gear pair by defining the ratio, the

pressure angle and helix angle.

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Figure 25. Rough sizing for helical gear pair

The data for the first stage are.

- i = 5

- α = 20°

- β = 15°

Repeat these steps also for the second stage.

The data for the second stage are.

- i = 4

- α = 15°

- β = 0°

Modification for the gears will be done in the KISSsoft interface. This steps give the user the first dimension

about the gears.

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4.9.2 Definition of the shaft geometry

With double click on the KISSsoft shaft analysis modules „Shaft1_calc“, „Shaft2_calc“ and „Shaft3_calc“ the

KISSsoft shaft analysis is started. Here, in the graphical shaft editor, the shaft can be modelled in detail.

When opening the shaft editor, no shaft is visible, only the elements positioned on the shafts are present. To

keep it simple, a cylindrical element of diameter D=30mm and length 200mm is defined for all three shafts,

shown here for the first shaft:

Figure 26. Shaft geometry shaft1

The end position and geometry form of the other machine elements, bearings and coupling will be defined

later. The shaft can now be detailed in the usual way. You can also adapt the bearings and the couplings

according to the shaft diameter. It is also possible to define bearings in shaft module including the axial

supporting. After definition press „Calculate F5“ in order to start the shaft analysis. This is necessary to get

reaction forces on the bearings which are in turn necessary for the bearing definition/analysis.

Repeat this step for all other shafts (in this example all shafts have the same length of 200mm, and the

diameter are 30mm, 40mm and 60mm for shaft1, 2 and 3).

4.10 3D-View and positioning

To show the defined geometry in KISSsys it is essential to add the kSys3DView from the Elments-Box into

the root directory.

Figure 27. Element-Box System element

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Double click on the kSys3DView element in the element tree and a new tab of the 3D will be shown. Or use

the submenu with the right mouse button and click show to open the graphic tab.

All shaft are overlaying each other, because the positioning of the shafts is not yet defined.

Figure 28. 3D–View without positioning

4.10.1 Positioning of the shafts

The shafts are still to be positioned with respect to each other. The „shaft1“ will be set as reference. This is

similar to a CAD-System in the assembly. All other elements will take the reference to this shaft. The second

shaft should be parallel to the first shaft, the distance being the centre distance of the first gear pair. Shaft 3

should be parallel to shaft 2, and again in the distance of the centre distance of the second gear pair.

Positioning procedure is started by right mouse click on”shaft1”, „shaft2“ and „shaft3“, select „Dialog“:

Figure 29. Dialog of shaft

The shaft „shaft1“ will use the function „Parallel to Shaft/Group“. As already mentioned the “shaft1” will be

fixed in the space. When the shaft „shaft1” has to be positioned at a certain position, then this can be defined

in the interface mask. In this example it will stays at the current position (0/0/0).

Figure 30. Fixing of shaft1

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Second the intermediate shaft will be placed relatively to the input shaft. Under the dialog the function

„According to gear pair“ will be chosen:

Figure 31. According to gear pair

Figure 32. Formula in the positioning dialog

Choose the Gear pairs and let the definition according to Formulas. With this definition every change in the

gear pair calculation will take into account and shown in the 3D-View too.

Repeat this step for shaft „shaft3“.

4.10.2 3D-View

Once the positioning is done, update the 3D-View by clicking the „Refresh“ button.

Following picture will be shown:

Figure 33. 3D-View of the system

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5 User Interface

5.1 Table with information on gear and bearing data

Choose the two predefined table from kSysTable from „Elements-Box“: „GearPairCalulations“ and

„HelicalGears“:

Figure 34. Predefined tables

The table names can be renamed and has no influence to the table.

With the right mouse button on the table and click on show or double click on the predefine table to show:

Figure 35. Predefined table

Those tables show the important result from the calculation in KISSsys.

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5.2 User Interfaces

5.2.1 Insert a UserInterface

A table for definition of the main input and output data is to be introduced: Choose the table „UserInterface“

from the templates and copy it into the tree using the name „UserInterface“. With „Show“, the table is shown.

Use function “Dialog” to define the number of rows and columns for table size.

To add a „UserInterface“ do the same as for predefine table.

5.2.2 Adding text

Use right mouse click and „Insert String“ to insert text as shown in the figure below. The text is to be defined

in the field „Value“:

Figure 36. Defining the In- and Output values

5.2.3 Display of results

The marked cell in grey in Fehler! Verweisquelle konnte nicht gefunden werden. are calculated values

nd are defined as expression in KISSsys. Those results will be shown on the following example. The input

speed is set in the properties in element „kSysSpeedOrForce“ Torque.

Figure 37. Properties "kSysSpeedOrForce"

Click and keep on the variable Torque with the left mouse button, place over the cell, then click and maintain

the right mouse button while maintaining the left mouse button, and release the left mouse button. Then a

selection menu will be shown where Text, Reference and Expression can be chosen.

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Text is defined as String, Reference is an expression, where the value can be changed in the table (e.g. input

speed) and Expression return a value.

Figure 38. Add expression

Now add all the Expression to cell which has a grey background. The finish step looks like the next table.

Figure 39. UserInterface with all Expression

Next step is to add reference values into the UserInterface. The grey cells have to be filled with the correct

reference value. The inserted values are in red, tis indicates to the user, that this is changeable. At the

beginning it is difficult to know what the name of the required variable is. This will comes with the experience.

Here are the list with the name of the variable which are in use.

Calc Method Gear pair calculation calcMethod

Shaft angles kSysShaft angle

Efficiency kSysGearPairConstraint eta

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Figure 40. UserInterface with Reference values

Similarly input and output powers can be shown. Furthermore, the total gear ratio shall be shown. Again, right

mouse click on the desired field, „insert real“ and defining the following expression:

Figure 41. Calculation of the total reduction from input and output speed

Expression is extended to have a condition (IF…THEN and ELSE) to check that Output speed is not zero to

be able to evaluate the formula. It can be calculated from power difference between input and output. With

right mouse click, „Insert string“, in desired field, the following dialog is shown. In „Expression“ the formula for

efficiency can be given. Again condition is first checked and then CADH_ValToSrt() converts value to a string

and CADH_Round(value, nof digits) will round the value to desired number of digits. After the conversion also

“%” mark is shown. Press “Ok” to accept and the result is shown in the user interface. Be careful to type

expression correctly not to lose it if there is typing mistakes.

Figure 42. Condition and formula to calculate efficiency of the system and convert the value to a text

5.2.4 Execution of functions

In the user interface, functions can be included. In this example, four functions are included:

- Function „Kinematic“ Calculate the kinematics of the gearbox

- Function „Strength“ Execution of KISSsoft strength analysis

- Function „GP 1“ KISSsoft interface for gears of first stage

- Function „GP 2“ KISSsoft interface for gears of second stage

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Figure 43. Defining calculation in UserInterface

Functions can also be defined within a field of the user interface (right mouse click, „Insert function“). A name

for the function is to be given and the commands to be executed have to be listed.

For the function „Kinematic“:

Figure 44. Function to calculate the kinematics

The name of the function „Kinematic“ will be visible

in the User Interface, but has no other effect otherwise.

_O.System.calcKinematic(); means that in System, the

function calcKinematic is executed (empty brackets since no

values are handed over to the function), ; to complete the

command line

kSys_Refresh corresponds to „Refresh All“, to ensure that the

values calculated (the output speed and the input torque) are

shown as results in the user interface.

Enter the following text:

_O.System.calcKinematic();

kSys_Refresh();

For the function „Strength“

Figure 45. Figure 5.2-1 Function to calculate the

strength

In the first step, the kinematics of the gear is analysed again to

ensure that the correct power is used.

_O.System.kSoftCalculate(); calls the function

kSoftCalculate under System. This command executes all

KISSsoft strength analysis.



_O.System.kSoftCalculate();

kSys_Refresh();

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For the function „GP 1“ and „GP 2“:

The command kSoftInterface opens the corresponding

KISSsoft analysis.

The full path has to be included to identify the

KISSsoft analysis to be shown:

_O.GB.GP1.GP1_calc.kSoftInterface();

Root directory: _O

kSysGroup: GB

kSysGearPairConstraint: GP1

kSoftHelicalGearPair: GP1_calc

Function: kSoftInterface



_O.GB.GP1.GP1_calc.kSoftInterface();


kSys_Refresh();

Figure 46. Function to call the KISSsoft calculation

for the 1st. Stage (same for the 2nd stage)

Now the UserInterface has 4 function tab integrated, to activate the functions double click on it:

Figure 47. Executive function in the UserInterface

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6 Completing the model

6.1 Setting 3D-View

Use function “System specific settings from menu to set 3DView colours and appearance (First click on the

kSys3DView window or tab to activate the button)

Figure 48. 3D specific settings

6.2 Display of the coupling

The couplings may not yet be shown in the 3D view since their width is still zero. Right mouse click on the

couplings („Coupling1“ and „Coupling2“), “Properties“ and define variable „b“ (=width) and „d“ (=diameter).

Let the width be 20 mm and the diameter 70 mm for example. After „RefreshAll“ the 3D view looks as follows:

Figure 49. Figure 6.2-2 3D-View of the couplings (red)

6.3 Definition of the force acting on the output shaft

On the output shaft, a force has been introduced. The five components of the force (Fx, Fy, Fz, Mx, Mz) can

either be defined in the „Properties“ directly or through the user interface (reference to the variable, as shown

above). The force has an effect on the lifetime of the bearings, but not the gears.

kisssys 03/2014 tutorial 1 · kisssys 03/2014 – tutorial 1 two stage helical gearbox 07/11/2014...

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