In order to complete the high level vibration test of pipeline in spacecraftheoretical analysis results show that the decisive factor for the pipeline failure is vibration strain, cutting the high frequency region of vibration environment can significantly reduce the vibration magnitudethe difference of the pipeline vibration strain before and after cutting high frequency region respectively by test and finite element method. The results show that under the principle the cut?off frequency higher than the main resonance frequency, the cut?off frequency is chosen to reduce the vibration magnitude, and the vibration strains of the pipeline are not affected. It is acceptable that cutting off the vibration test condition to replace the original vibration test condition the feasibility of pipeline vibration test.
于韶明,芦田,卫国,胡彦平,许巍.基于应变分析的管路振动研究[J].动力学与控制学报,2017,15(6):512~517; Yu Shaoming, Lu Tian, Wei Guo, Hu Yanping, Xu Wei. Research on pipeline's vibration based on strain analysis[J]. Journal of Dynamics and Control,2017,15(6):512-517.