The Creo Simulate vibration module has five analysis types available: Modal Analysis, Dynamic Time, Dynamic Frequency, Dynamic Random and Dynamic Shock. Tips and Tricks related to each type of vibration analysis can be found below, as well as more vibration subjects:
The first step before performing a dynamic analysis is to determine if it is necessary. To do this you need some estimate of the first natural frequency of the structure either by performing a hand calculation or a Creo Simulate modal analysis. The rule of thumb is that if the structure’s first natural frequency is five times the frequency of the dynamic load then the structure will behave as if the load were static and no dynamic analysis is necessary. As the structure frequency gets closer to the input load frequency you will get some dynamic amplification and a dynamic analysis may be necessary.
The following flow chart shows the step required for running a Dynamic Time, Frequency or Random analysis.
