摘要
提出了非平稳过程功率谱密度的概念。证明路面谱密度就是非平稳随机过程Wiener过程的功率谱密度。该结果对路面仿真以及为车辆振动提供输入激励的实时性和真实性具有很重要实际价值。
A conception on nonstationary process spectral density function is presented in this article. It is proved that the road power spectral density function is nonstationary processes Wiener process power spectral density function. The result has great value in simulation of road and providing real input signal for vehicle vibration.
出处
《工程数学学报》
CSCD
北大核心
2003年第4期134-136,共3页
Chinese Journal of Engineering Mathematics
