COMSOL Multiphysics™

femsim
Purpose
femsim
Create a Simulink structure.
Syntax
Description
sct = femsim(fem,...)
sct = femsim(fem,...) creates a Simulink structure sct for the FEM structure
fem.
To use the exported Simulink structure in Simulink, open the Blocksets &
Toolboxes library in Simulink, double-click on the COMSOL Multiphysics icon,
and drag the COMSOL Multiphysics Subsystem block to your Simulink model.
Double click on your copy of the block, and enter the name of your Simulink
Structure. This sets up the input and the output ports of the block.
The function femsim accepts the following property/value pairs:
TABLE 1-27: VALID PROPERTY/VALUE PAIRS
PROPERTY VALUE DEFAULT DESCRIPTION
Input cell array of strings fem.const Input variable names
Keep string containing K, L,
M, N, D, E | auto
auto
Time-independent
quantities
Nonlin off | on | auto auto Use nonlinear stationary
solver
Outnames cell array of strings y1, y2, ... Output data names
Output cell array {} Output data (see below)
Redcomp cell array of strings Degrees of freedom in
model reduction of wave
equations
Redmodes integer 10 Number of eigenmodes in
reduction
Redstatic off | on on Use static modes in
reduction
Reduction off | on off Model reduction
State off | on off Use linearized state-space
model
Static off | on off Use static solver
T scalar 0 Time for evaluation of
linearized model
In addition, the common solver properties described in the entry femsolver are
supported, with modifications described below.
142 | CHAPTER 1: COMMAND REFERENCE