Generation of Non-Gaussian Random Vibration Excitation Signal for Reliability Enhancement Test

During environment testing, the time histories of some dynamic environments follow non-Gaussian distribution. It is always assumed that the random vibration simulated follows Gaussian distribution, because the traditional digital random vibration control system can only supply the random vibration excitation signal of Gaussian. To simulate the real environment of product, a method is developed in this paper that can generate non-Gaussian random signal with specified power spectrum density (PSD), skewness and kurtosis by shot noise. In this way, non-Gaussian random vibration can be produced on traditional electrodynamic shaker. It solves the problems of spectral valley and energy shortage in low frequency on omni-axis shaker. At last, the wavelet is used to analyze the non-Gaussian signal.

作 者： YU Ying-yang JIANG Tong-min   作者單位： Department of System Engineering of Engineering Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China  刊 名： 中國(guó)航空學(xué)報(bào)（英文版）  ISTIC 英文刊名： CHINESE JOURNAL OF AERONAUTICS  年，卷(期)： 2007 20(3)  分類(lèi)號(hào)： V2  關(guān)鍵詞： non-Gaussian   shot noise   skewness   kurtosis   wavelet  

【Generation of Non-Gaussian Random Vi】相關(guān)文章：

VI設(shè)計(jì)論文09-18

ON ALMOST SURE CONVERGENCE OF WEIGHTED SUMS OF RANDOM ELEMENT SEQUENCES04-26

第130講：dinks; sandwich generation05-04

Generation and Application of Spatial Atmospheric Turbulence Field in Flight Simulation04-26

Development Of Chinas New Generation Of Launch Vehicles Proceeds Well04-26

vi設(shè)計(jì)崗位職責(zé)04-21

Rapid Optimal Generation Algorithm for Terrain Following Trajectory Based on Optimal Control04-27

VI策劃執(zhí)行合同書(shū)09-07

VI策劃執(zhí)行合同書(shū)05-04

Generation of Hydroxyl Radicals and Its Relation to Cellular Oxidative Damage in Plants Subjected to Water Stress04-27