Equivalence Study on Simulating Transient Vibration Environment Using Sinusoidal Scanning Vibration
The use of sinusoidal scanning vibration to simulate low-frequency transient vibration environment is a traditional testing method in the aerospace industry,and its environmental assessment of products may have both under testing and over testing simultaneously.Firstly,the equivalence between the two is analyzed,and then relevant theories such as impact response spectrum and maximum response spectrum are used to study the scanning rate and damping coefficient in the formulation of equivalent sinusoidal scanning vibration test conditions,and parameter selection suggestions are provided.Finally,steps are proposed to establish the testing conditions for sinusoidal scanning vibration environment,providing reference for the low-frequency transient environment adaptability assessment using sinusoidal scanning testing.
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