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Moving Parts : Select moving parts. The nodes of the Moving parts will be moved. Multiple parts can be selected.
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Fixed Parts : Select fixed parts. the Fixed parts acts like a contact surface. Multiple parts can be selected.
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Allow rotation : The moving parts can optionally be allowed to undergo rigid body rotation together with translation.
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Ref. node : The rotation point, which is the same as the reference point, can optionally be changed to be at any nodal position by activating the Ref. node toggle and picking a node with the left mouse button or typing a node ID in the text field. The stresses and strains on the *INITIAL_STRESS_SHELL, *INITIAL_STRAIN_SHELL, and *INITIAL_STRESS_SOLID keywords are automatically rotated to follow the rotation of the elements in the moving parts.
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T1 : The thicknesses of the moving parts will be considered if the T1 toggle is active.
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T2 : The thicknesses of the fixed parts will be considered if the T2 toggle is active.
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Gap : With either of these toggles active, an appropriate gap will be left between the moving and the fixed parts. The purpose for this is to make the parts "exactly in contact" as far as LS-DYNA is concerned. Additional clearance between the moving and the fixed parts can be added by typing a value in the Gap field.
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Direction : Popup direction dialog to define a vector.
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Flip Dir. : The direction of travel can be reversed.
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S2S check : Perform surface to surface check between parts.