Point Spring Supports |
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Enter Spring Stiffness of selected nodes in each direction of GCS or nodal local coordinate system. Replace or remove previously defined spring stiffness. |
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From the Main Menu select Boundary > Spring Supports > Point Spring Supports. |
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Compression-only/Tension-only Type: Enter the compression-only/tension-only type elastic spring. Stiffness: Tension-only/compression-only spring stiffness about the x-axis direction of the local element coordinate system. Direction: Enter the direction of a spring with respect to the node local coordinate system. Note Compression-only / Tension-only Type of Point Spring Support cannot be applied to Dynamic Analysis.
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Multi-Linear Type: Enter the multi-linear type elastic spring. Multi-Linear Type: Enter the tensile stiffness and compressive stiffness of a spring symmetrically or asymmetrically. Compression in a spring is defined to be the positive (+) displacement. That is, the stiffness shown in the first quadrant of the left guide diagram represents the stiffness of a spring subjected to compression. Force-Deformation Function: User can directly input the hysteresis of spring stiffness in the table format. Direction: Enter the direction of a spring with respect to the node local coordinate system. Note 1. Multi-linear Type of Point Spring Support cannot be applied to Dynamic Analysis. 2. The slopes in the external sections, which are not defined by the user, are based on the same slopes defined by the last two nodes. |