摘要
室内道路模拟试验已经成为汽车工业一项主要试验项目,而标准路面谱的重构是需首先解决的问题之一。根据不平道路的统计频域特性,重构出时域信号,对室内汽车的平顺性的研究有着重要作用。文章在介绍了路面功率谱密度理论的基础上,引入了重构路面不平度的核心算法——傅立叶逆变换法,并基于GUI开发了标准路面谱重构软件。最后,对该算法的优缺点进行了总结。
Reconstruction of road roughness according to the road statistic characteristic is vital to the research of vehicle ride performance indoor.Reconstruction of road spectrum is one of the problems that should be solved ahead. This paper described the core algorithm-the FOURIER inverse transform method based on the theory of PSD and developed the software of standard road spectrum＇s reconstruction based on GUI.Moreover the advantages and disadvantages of this algorithm were analyzed. In the end the relative merits of the core algorithm was summarized.
出处
《现代交通技术》
2009年第2期7-10,共4页
Modern Transportation Technology
关键词
路面不平度
功率谱密度
逆变换
重构
软件开发
road roughness
power spectral density
in verse transformation
reconstruction
software implementation
