Element Trees: Bushing Load
This section describes how to construct and access the element tree for Bushing Load features in Creo TOOLKIT. It also shows how to redefine, create and access the properties of these features.
Introduction
The bushing loads in the model are represented under the Bushing Load node in the product mechanism tree. As the bushing load is a regular Creo Parametric feature, it also has an appropriate node in the main model tree. You can create, edit, and redefine the bushing loads. To create new bushing loads select a weld connection or a 6DOF connection. You must specify six stiffnesses and six damping coefficients for all the degrees of freedom of the reference connection. Each coefficient is associated with one feature parameter.
Note
•  The default units of the spring stiffnesses and the damping coefficients on the three rotational axes are degree-based.
•  If bushing load reference is a weld connection, any axis can be locked. In this case the spring stiffness on the locked axis should have a value of -1.0, regardless of the current units.
The Feature Element Tree for Bushing Loads
The element tree for the bushing load feature is documented in the header file ProBushingLoadFeat.h, and is shown in the following figure.
Element Tree for Bushing Loads
Image
The following table describes the elements in the element tree for the bushing load feature:
Element ID
Data Type
Description
PRO_E_FEATURE_TYPE
PRO_VALUE_TYPE_INT
Specifies the type of feature
PRO_E_STD_FEATURE_NAME
PRO_VALUE_TYPE_WSTRING
Specifies the name of the feature
PRO_E_BUSHLD_REF
PRO_VALUE_TYPE_SELECTION
Specifies the weld or 6DOF reference connection
PRO_E_BUSHLD_T1_STF_COEFF
PRO_VALUE_TYPE_DOUBLE
Specifies the spring stiffness on the 1st translation axis
PRO_E_BUSHLD_T1_DMP_COEFF
PRO_VALUE_TYPE_DOUBLE
Specifies the damping coefficient on the 1st translation axis
PRO_E_BUSHLD_T2_STF_COEFF
PRO_VALUE_TYPE_DOUBLE
Specifies the spring stiffness on the 2nd translation axis
PRO_E_BUSHLD_T2_DMP_COEFF
PRO_VALUE_TYPE_DOUBLE
Specifies the damping coefficient on the 2nd translation axis
PRO_E_BUSHLD_T3_STF_COEFF
PRO_VALUE_TYPE_DOUBLE
Specifies the spring stiffness on the 3rd translation axis
PRO_E_BUSHLD_T3_DMP_COEFF
PRO_VALUE_TYPE_DOUBLE
Specifies the damping coefficient on the 3rd translation axis
PRO_E_BUSHLD_R1_STF_COEFF
PRO_VALUE_TYPE_DOUBLE
Specifies the spring stiffness on the 1st rotational axis
PRO_E_BUSHLD_R1_DMP_COEFF
PRO_VALUE_TYPE_DOUBLE
Specifies the damping coefficient on the 1st rotational axis
PRO_E_BUSHLD_R2_STF_COEFF
PRO_VALUE_TYPE_DOUBLE
Specifies the spring stiffness on the 2nd rotational axis
PRO_E_BUSHLD_R2_DMP_COEFF
PRO_VALUE_TYPE_DOUBLE
Specifies the damping coefficient on the 2nd rotational axis
PRO_E_BUSHLD_R3_STF_COEFF
PRO_VALUE_TYPE_DOUBLE
Specifies the spring stiffness on the 3rd rotational axis
PRO_E_BUSHLD_R3_DMP_COEFF
PRO_VALUE_TYPE_DOUBLE
Specifies the damping coefficient on the 3rd rotational axis