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Rigid motion9/24/2023 ![]() Moreover you can interactively modify the point coordinates quite similarly to the Rotate Profile Dialog. whether all items inside or all items outside the gap shape belong to the rotor. But you can specify the orientation of the gap, i.e. You cannot alter the axis (this setting is fixed by the rotation axis). This procedure is very similar to the one, when defining a Rotate solid via a profile polygon. Now you can define a (closed) polygon in the U-V plane which will be rotated around the U axis. While the Gap definition mode is active, a helper coordinate system is shown with the U axis pointing toward the direction of the specified rotation axis. If you already have closed the dialog box, you can define a new gap by selecting the appropriate entry from the context menu, when selecting the newly defined Rotation item in the Navigation Tree. For this purpose, enter the Gap definition mode by simply clicking the Define Gap button within the dialog box. To complete the definition of the Rotation, the rotor needs to be specified. In a 2D simulation, the rotation axis must be orthogonal to the mesh cutplane. Please note: The rotation axis must be orthogonal to one of the boundaries of the calculation domain. For more details, please refer to the dialog online help page. The rotation axis and the center are defined automatically by the U/X axis and the origin of the active coordinate system. A corresponding dialog box will open where you can give a meaningful name to the rotation and specify the angular displacement. Select Simulation: Motion > Motion > Rotation ( ) or select the Motion folder in the Navigation Tree and choose Define new Rotation from the context menu. This can be done either via the short cut in the context menu or within the corresponding properties dialog box. The GAP must not touch any SECONDARY or PRIMARY element.īoth Motion definitions as well as Gaps can be activated or deactivated within the simulation. Subsequently, the moving part is determined automatically: All shapes inside the GAP will belong to the SECONDARY, all other shapes will belong to the PRIMARY. It is essential for proper meshing of the structure to define a surface ( GAP) which clearly separates the moving part from the static part. This interface is called GAP in the software it is defined as the surface of a rotated body for a rotation and as the surface of an extruded body for a translation. There must be a well-defined separation between the moving and the static parts: a so-called sliding interface. Multiple motions can be defined in the same project, including nested motions (under the conditions listed at the end of this page).Įach " motion" is defined by a static part ( PRIMARY) and a moving part ( SECONDARY). Available motions are (periodic) Rotations and Translations. Gait training.Rigid Body Motion Overview Rigid Body Motion CST EM Studio supports the definition of rigid body motions.Muscle stretching to relieve tight muscles and maintain range of movement.Practice with transfers and functional tasks using mental rehearsal and visual and auditory cues to initiate and maintain movement.Breaking down complex movement sequences, such as rolling in bed, into component parts to make movement smooth and efficient.Strengthening exercises for the trunk, upper and lower limbs and face in lying, sitting and standing.Physiotherapy at .uk will depend on your individual needs but may include: ![]() Physiotherapy at .uk will promote function by improving strength, flexibility, co-ordination, balance and relaxation. Physiotherapy treatment will help to keep you moving and increase your independence with every day tasks for as long as possible. At .uk our specialist neurological physiotherapists commonly treat individuals with slow or rigid movement following damage to the brain or spinal cord.
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