Dropping response of simple supported PCB under versine stimulation
CHEN Sijia1,XU Fuhua1,2,RUAN Li1,LU Fude1,GAO De1
1.Ningbo Institute of Technology,Zhejiang University,Ningbo 315100,China;
2.School of Mechanical Engineering Taiyuan University of Science and Technology,Taiyuan 030024,China
Abstract:Dropping impact response of PCB is studied in this work. The PCB is simplified as a simple supported beam and the dynamic model of the PCB under versine stimulation was also proposed. To validate the dynamic model,a dropping experiment was performed by SY11-100 vertical impact testing station. The pulse excitation and the acceleration response of the PCB were measured to compare with the result of the theoretical calculation. It is found that the period of the versine pulse stimulation and the material of the PCB have great influences on the dynamic response of the PCB. The results show that: the time to reach the maximum stress and the maximum stress of the PCB are both reduced as the period of the versine pulse becomes short and the material structure factor λ increases.
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