Tabular static analysis

Simplified analysis where the effect of an immediate change to a system is calculated without regard to the long-term response of the system to that change. Performs a static analysis for a table of cases.

Loads

Open the load case container, where load cases can be defined (CTRL+K on load case to configure).

Configure selected load

Define and configure the load case here.

Force/Moment

Define the direction of the force/moment. By entering 1 in a corresponding direction means that a force/moment is applied in this direction scaled by 1.

Direction

Force/Moment

u

Force in axial direction

v

Force in transversal direction

w

Force in normal direction

ru

Torque around axial direction

rv

Moment around transversal direction

rw

Moment around normal direction

Add component acceleration

Add a component acceleration load case. For example, an acceleration of -9,81 m/s2 in w-direction defines the gravitational force to the selected component.

Add composition acceleration

Add a composition acceleration. The acceleration is used for the whole composition and not for a component only, as in add component acceleration. For example, an acceleration of -9,81 m/s2 in w-direction defines the gravitational force to the composition.

Add controller command

Add a controller command load. Either a position or a velocity command value can be defined acting on the selected controller.

Add rail profile

Add a rail profile to a moving interface. This load adds a displacement between master and slave interface depending on the position of the carriage along the rail. The profile displacments are handled in the same manner as with link spacers (internal conversion to force & moment preloads using link stiffnesses). The corresponding displacement degrees of freedom will be equal to the input values only when no external load is present.

Average over car length

This option enables & disables the carriage length averaging. This affects the profile load’s normal translational displacement (in direction of the profile normal dir vector, see below) and the pitch rotational displacement (around the axis normal to the travel direction and profile normal dir). The behaviour is as follows:

Option

Normal Translation Displacement Input

Pitch Rotation Displacement Input

Off

taken directly from the profile value at the centre of the carriage

always zero (i.e., the resulting preload moment is also always zero)

On

averaged over the entire carriage length (using 20 sampling points)

derived using a profile trendline along the carriage length (using 20 sampling points)
Selected component and rail interface

Select the component and the rail where the profile should be added.

Profile normal dir

Define the normal direction of the rail profile.

Edit table

Define rail profile using excel or the table directly.

Step

Action

1

Click on Table

2

Right-click into newely opened table and click on Copy header

3

Open Excel and paste the header in a new sheet

4

Define the time steps in the Time column

5

Define the values at every time step in the Value column

6

Copy the whole table including the header Time and Value

7

Right-click into the MORe-Table and click on Paste

8

Click on Plot to check if table was copied correctly

Additionally, the number in Number of rows can be changed. This allows to directly define the transient load data in the table.

Important: The headers of the table imported from Excel have to match the ones given in the MORe-Table. Furthermore, tables that have more than 1000 rows can not be copied into MORe.

Import data

Import the rail profile from a .mat file.

Step

Action

1

Open matlab and define a vector of name or var which stores the time steps

2

Define a vector that stores the load data for every time step

3

Select both vectors and save them in a .mat file

4

Right-click on load_case_data and click on Import data

5

Select the .mat file

6

Click on Plot to check if table was copied correctly

Important: In the .mat file there has to be a vector called var, otherwise the import will not work.

Hint

By right-clicking on the number in the first column, the load can be deleted.

Thermo-Mechanical loads

Open the thermo-mechanical load window.

Include thermo-mechanical loads

Tick the box to be able to include thermo-mechanical loads.

Simulated composition temperature

Select a simulation result of a thermal steady state or transient analysis.

Reference temperature

Define the reference temperature used to calculate the thermal deformation.

Axis position table

Number of poses

Change the number of poses in the table. In the table the positions of the axes can be changed. MORe then performs a static analysis at every case defined. If the number of poses is 2, then 2 static analyses will be performed.

Table

For every pose the position of the axis can be defined.

The table can be copied from excel. The headers of the table imported from Excel have to match the ones given in the MORe-Table. Furthermore, tables that have more than 1000 rows can not be copied into MORe.

Load case table

Number of poses

Change the number of poses in the table. In the table weight of the mechanical loads can be changed. MORe then performs a static analysis at every case defined. If the number of poses is 2, then 2 static analyses will be performed.

Table

For every pose the load can be defined.

The table can be copied from excel. The headers of the table imported from Excel have to match the ones given in the MORe-Table. Furthermore, tables that have more than 1000 rows can not be copied into MORe.

Thermo mechanical table

Number of poses

Change the number of poses in the table. In the table the steps of the simulation result can be selected.

The table can be copied from excel. The headers of the table imported from Excel have to match the ones given in the MORe-Table. Furthermore, tables that have more than 1000 rows can not be copied into MORe.

Example

A thermal steady state analysis was performed with five different environmental temperatures. The number added in the thermo mechanical table then defines which thermal load is used in which pose.

Start calculation

Start the calculation of the tabular static analysis.