Random vibration analysis is intended for scenarios where the vibrations are not deterministic; i.e., they are random in nature. Hence the input of the random vibration analysis is probabilistic and is in the form of power spectral density (PSD).While input PSD curves are often provided based on engineering specifications or criteria that must be met, providing high-quality PSD input is critical for getting accurate random vibration analysis results.In this video, we will help you understand how to input the PSD curve using Ansys Mechanical, check its fidelity, and improve the curve if needed.

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