Accuracy of MSUP Transient Solution depends mainly on the following 4 factors- mesh density, as higher the mesh density, more accurate is the transient solution. The second factor to consider is the time step size used to solve the Transient Analysis; it should be small enough to accurately capture the transient response of the system. But using fine mesh density and small time step size come at the cost of computational expense, which is why it is necessary to strike a balance between numerical accuracy and computational expense. The third key consideration for numerical accuracy is the number of modes included in the Modal solution. A sufficient number of modes should be included in the Modal solution to avoid mode truncation error, but in some cases despite including a high number of modes, it can still be difficult to capture a localized response. In such cases, Residual vectors, can be used to help capture the accurate response despite including fewer modes. In this video lesson, we start with a short lecture and then get into a workshop example of a prestressed drum head in Ansys Mechanical.

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