Define Advanced Spatial Motion
Use the Advanced Spatial tool to define nodal motion conditions. This is useful to define mesh displacement and/or mesh velocities along with other motion. It can be used to simulate a train moving through tunnel, a car changing lanes, food injection, and so on.
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From the Motion ribbon, click the arrow next to the
Direct tool set, then select
Advanced Spatial.
Figure 1. 
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Select the solid and/or surfaces for which motion needs to be defined.
A dialog opens.
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Select motion variables, define motion input, and optionally select already
defined motion.
- For Constant, define the value in the same row.
- For Linear or Cubic Spline, define the position of two reference
coordinates with time.
- Define a function type and variable.
- Provide the co-ordinates of two reference points at time,
t=0.
These two points need not necessarily be on the surface/solid.
- Provide co-ordinates at other time steps throughout the
simulation.
The greater the number of steps the better. AcuSolve will internally calculate the mesh displacements based on the given 7-column array.
- For User Function, define the function name and the strings/values.
- For Scattered Data, define co-ordinate variable data in a table.
You can also import existing tables from .txt or .csv files.
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From the guide bar, execute the command in the following
ways:
- Click
to confirm your selection and remain in the
tool.This allows you to continue creating instances and helps you visualize and edit instances with the legend.
- Click
to confirm your selection and exit the
tool.
Surfaces and solids selected in this tool are removed from any existing translation or rotational motion. - Click