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Rigid body motion in ANSYS Classic 14.5 refers to the movement of an object as a whole, without any internal deformation or strain. It is a type of structural analysis that assumes all points on the body move in the same manner and direction. This type of analysis is useful for large, solid structures that are not affected by small deformations.
ANSYS Classic 14.5 uses the finite element method to handle rigid body motion. This method breaks down the body into smaller elements and calculates the movement and deformation of each element. The results are then combined to determine the overall movement of the rigid body.
Convergence in ANSYS Classic 14.5 refers to the process of reaching a stable solution for a given analysis. It is important to achieve convergence in order to ensure accurate and reliable results. This process involves iteratively adjusting the input parameters until the solution no longer changes significantly.
ANSYS Classic 14.5 has various features to help handle convergence issues. These include automatic time stepping, adaptive mesh refinement, and convergence controls such as adjusting the convergence criteria and maximum iterations. Additionally, the user can troubleshoot convergence issues by checking the model geometry, material properties, and boundary conditions.
Out of convergence in ANSYS Classic 14.5 can be caused by various factors such as incorrect or unrealistic boundary conditions, incorrect material properties, inappropriate element types or sizes, and insufficient time steps. It can also be caused by rigid body motion, which can be addressed by using appropriate constraints or defining the rigid body as a separate part in the model.