Figure 1 Matrix property page
The magnitude of the matrix force is calculated according to the following equations:
Where, the inputs into the equation are defined in the following table:
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Matrix of Stiffness Coefficients |
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Enter the coefficient that determines spring stiffness, namely the change in the spring given a change in length (units are force/length). These values can be set by using Parametric Value. |
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Viscous Damping Coefficient (matrix) |
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Enter the coefficient that determines the damping force given the velocity of the spring end points (units are force-time/length). These values can be set by using Parametric Value. |
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Viscous Damping Coefficient (ratio) |
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The damping coefficient matrix is calculated as
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Preload Force and Torque |
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Specify extra forces or torques in the matrix. The force and torque in the spring at its free length is the Pre-load. These values can be set by using Parametric Value. |
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Six Reference Length |
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Enter the lengths of the spring where it exerts no force other than the Pre-load. The default free lengths are the lengths of the spring when it is first defined. These values can be set by using Parametric Value. |
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Displacements |
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Translational and rotational displacements of the action marker with respect to the base marker |
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Velocities |
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Translational and rotational velocities of the action marker with respect to the base marker |
•Type: Selects a type of expression as Standard Matrix Force or User Subroutine Matrix Force.
•Standard Matrix Force: Defines a standard matrix force by using the function expression.
•User Subroutine Matrix Force: Defines a user subroutine matrix force by using the user subroutine. For more information, click Matrix Force USUB.
•Force Display: Displays the resultant force vector graphically on Working Window. For more information, click here.
•Advanced Connection for Flexible Body: If user selects this option, the bushing force is directly connected two body not using virtual body connection. If there’s no flexible body (RFlex or FFlex), this option is ignored.
Note
The user can use Parametric Value in Matrix of Stiffness Coefficient, Viscous Damping Coefficient (matrix), Preload Force and Torque, and Six Reference Length.
