Random Vibration Analysis Using Mechanical and MAPDL

Typically components are designed to resist deterministic loadings. These loadings can either be static or dynamic. However, almost all industrial components are also subjected to some type of non-deterministic, dynamic loading; such as an automobile moving along a road, airplane during flight, component moving along a manufacturing line, etc. These types of loadings are known as random vibration.

Random vibration loading is typically not truly “random”. Its characteristics can be described using a power spectral density (PSD). The terms random vibration analysis and PSD analysis are commonly used interchangeably to mean the same type of evaluation.
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