Research on Multi Frequency Vibration Test Method of Transport Package Based on Displacement Synthesis

By analyzing the existing vibration test method, include, sinusoidal frequency test method, sinusoidal frequency conversion test method and random vibration test method, we propose multi frequency vibration test method based on displacement synthesis. The new multi frequency vibration test table contain multiple mechanical rotating mechanisms that have different eccentricities, it cover wide frequency, output accurate and reliable frequency. With the new multi frequency vibration test table, the frequency that conform actual vibration can be simulated and output. It is a optimization for the original frequency test method.