Synthesis of running rms-induced non-Gaussian random vibration based on Weibull distribution

摘要：

　　Field random vibration is usually non-Gaussian, which makes ordinary random vibration testing unable to simulate the fatigue damage that products will experience in field.A new method is proposed in this paper to synthesize running RMS-induced non-Gaussian vibration based on the probability distribution of running RMS (root mean square), which is simulated by using the two-parameter Weibull distribution.Shock response spectrum (SRS) is used to detect significant transients within signals.The synthesized non-Gaussian signal has the same PSD,kurtosis and PDF (probability density function) as the field data.Fatigue damage spectrum (FDS)is used as another proof of the effectiveness of this proposed new method.

关键词： non-Gaussian random vibration Weibull distribution fatigue damage spectrum shock response spectrum

作者: Xu Fei Li Chuanri Jiang Tongmin Kjell Ahlin

作者单位: School of Reliability and System Engineering, Beihang University,37 Xueyuan Road, Haidian district, Skogrundan 38 Akersberga, SE-18463, Sweden

会议类型: 国际会议

会议名称: the International Conference Vibroengineering-2014

会议地点: 贵阳

会议语种:英文

页码: 40-45

在线出版日期: 2014-11-07（万方平台首次上网日期，不代表论文的发表时间）