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Syntax
STIFFNESS arg1 arg2 arg3 arg4 arg5 arg6 arg7
Description
The stiffness matrix of a linear spring contains 6 components forming the diagonal of the matrix K.
Arguments
Minimum quantity: 2
arg1
Value |
Dimension |
Meaning |
L |
KEYWORD |
The stiffnesses of the left spring element follow. |
C |
KEYWORD |
The stiffnesses of the the central spring element follow. |
R |
KEYWORD |
The stiffnesses of the right spring element follow. |
arg2 - arg7
Value |
Dimension |
Meaning |
CNX |
FORCE/LSTRUCT |
Displacement stiffness in X |
CVY |
FORCE/LSTRUCT |
Displacement stiffness in Y |
CVZ |
FORCE/LSTRUCT |
Displacement stiffness in Z |
CMX |
MOMENT/ANGLE |
Rotation stiffness in X |
CMY |
MOMENT/ANGLE |
Rotation stiffness in Y |
CMZ |
MOMENT/ANGLE |
Rotation stiffness in Z |
Scopes
ABUTMENT
Examples
STIFFNESS L 0.10000E+09 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
The left spring is only locked in the X direction (CNX). The local X-direction of the spring is vertical if no additional angles are attached.
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