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Random Vibration (Modal Superposition) Analysis
The vibration generated in vehicles from motors, road conditions or from rocket and jet engines, to name a few sources, is a combination of many frequencies and has a certain "random" nature. Random vibration (modal superposition) analysis determines how the structure of an object or a supported object reacts to constant, random vibration. Random vibration (modal superposition) analysis uses input from linear natural frequency (modal) analysis and power spectral density curves, which are representations of vibration frequencies and energy in a statistical form. The analysis determines the root-mean-square response of displacement and stress resulting from constant, random vibration over time. This information can help discern the structural integrity of a vehicle and the effects of vibration on payloads being transported by a vehicle. TYPICAL APPLICATIONS
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