Study on Stationarity of Random Load Spectrum Based on the Special Road

[摘要] In the special road quality assessment method, there is a method using a wheel force sensor, the essence of this method is collecting the load spectrum of the car to reflect the quality of road. According to the definition of stochastic process, it is easy to find that the load spectrum is a stochastic process. However, the analysis method and application range of different random processes are very different, especially in engineering practice, which will directly affect the design and development of the experiment. Therefore, determining the type of a random process has important practical significance. Based on the analysis of the digital characteristics of road load spectrum, this paper determines that the road load spectrum in this experiment belongs to a stationary stochastic process, paving the way for the follow-up modeling and feature extraction of the special road.

[发布机构] School of Instrument Science and Engineering, Southeast University, Nanjing; 210096, China^1

[效力级别] 机械制造

[关键词] Analysis method;Application range;Design and Development;Digital characteristics;Engineering practices;Load spectrum;Stationarity;Stationary stochastic process