*SetBush() - symmetric bushing pair

Sets the properties of a symmetric bushing pair.

Syntax

*SetBush(bush_name, LEFT|RIGHT, 
                              TYPE_k_x, TOKEN_k_x, 
                              TYPE_k_y, TOKEN_k_y, 
                              TYPE_k_z, TOKEN_k_z, 
                              TYPE_c_x, TOKEN_c_x, 
                              TYPE_c_y, TOKEN_c_y, 
                              TYPE_c_z, TOKEN_c_z, 
                              TYPE_kt_x, TOKEN_kt_x, 
                              TYPE_kt_y, TOKEN_kt_y, 
                              TYPE_kt_z, TOKEN_kt_z, 
                              TYPE_ct_x, TOKEN_ct_x, 
                              TYPE_ct_y, TOKEN_ct_y, 
                              TYPE_ct_z, TOKEN_ct_z, 
                              f_x, f_y ,f_z, 
                              t_x, t_y, t_z)

Token

If you select this TYPE, use this TOKEN.

LIN

TOKEN: Value

Enter a value for: k_x, k_y, k_z

c_x, c_y, c_z

kt_x, kt_y, kt_z

ct_x, ct_y, ct_z

CRV

TOKEN: curve_name,

AKIMA|CUBIC|LINEAR,

`indep_variable`

See Comments.

EXPR

TOKEN: `expression`

Enter an expression.

Arguments

bush_name: The variable name of an existing bushing pair.; Data type: varname
LEFT RIGHT: If LEFT is specified, the properties are assigned to the left bushing, and the right bushing properties are made symmetric to the left bushing.; If RIGHT is specified, the properties are assigned to the right bushing, and the left bushing properties are made symmetric to the right bushing.
k_x, k_y, k_z: Translational damping in the X, Y, and Z directions.; Data type: real
c_x, c_y, c_z: Translational stiffness in the X, Y, and Z directions.; Data type: real
kt_x, kt_y, kt_z: Torsional stiffness in the X, Y, and Z directions.; Data type: real
ct_x, ct_y, ct_z: Torsional damping in the X, Y, and Z directions.; Data type: real
f_x, f_y, f_z: Initial translational force in the X, Y, and Z directions.; Data type: real
t_x, t_y, t_z: Initial torque in the X, Y, and Z directions.; Data type: real
`expression`: An expression for a stiffness or damping token.
curve_name, AKIMA|CUBIC|LINEAR, `indep_variable`: When using curve data, a curve, interpolation method, and an independent variable must be specified, where curve_name is the variable name of an existing curve, the interpolation method can be set to AKIMA, CUBIC or LINEAR and the independent variable is specified in Templex syntax.

Example

*BushPair(bsh_lca_frnt, "LCA frnt bushing", 
b_lca, 
b_frame, 
p_lca_frnt_bush)
*SetBush(bsh_lca_frnt, LEFT, 
 6.000e+03, 6.000e+03, 1.115e+03, 
 0.000e+00, 0.000e+00, 0.000e+00, 
 5.000e+05, 5.000e+05, 1.000e+05, 
 0.000e+00, 0.000e+00, 0.000e+00, 
 0.000e+00, 0.000e+00, 0.000e+00, 
 0.000e+00, 0.000e+00, 0.000e+00)

Context

*BeginMdl()

*DefineAnalysis()

*DefineSystem()

Comments

To specify non-linear properties for stiffness or damping in any direction, a solver expression or curve data can be used to compare the force. When using a solver expression, Templex syntax is used and all variables are enclosed in braces {} and the rest is treated as literal. To use curve data, a curve, interpolation method, and a independent variable must be specified, for example, CRV, curve_name, AKIMA, `{DX}`where curve_name is the variable name of an existing curve, interpolation method can be set to AKIMA, CUBIC or LINEAR and the independent variable is specified in Templex syntax.