Random vibration analysis is another spectral method. The purpose of a random vibration analysis is to determine some statistical properties of a structural response, normally the standard deviation (1σ) of a displacement, force, or stress. (1σ) Is used to determine fatigue life of structure. In this tutorial, first we will model tensile specimen in ACP tools. Then we need to find 10 modes of specimen between 0 Hz to 1500 Hz frequencies. After that we need to calculate Sigma RMS, N, occurrence and V0 to calculate life time of specimen.
Creating Composite Tensile specimen in ACP
Importing ACP model into modal analysis
Finding Mode Shapes
Introduction of random vibration
Applying boundary conditions
Determining the fatigue behavior of composite tensile specimen
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