摘要
提出了一种快速测取路面谱的新方法 ,通过测量轮轴处的时域加速度来间接计算路面平度谱 ,从而大大简化了操作。在作功率谱估计时采用了参数模型法 ,可利用较少的数据快速算得结果 ,通过与传统的富氏谱分析结果的比较 ,验证了短序列数据分析的优势 ,为实时路面谱测量仪器提供了实用算法。
This paper presents a new approach to quickly measure road surface roughness spectrum. In this way, road surface roughness spectrum could be calculated through measuring time domain acceleration at wheel and axle so as to make operation easy. And a parameter model was used in estimating power spectrum in order to get the same results only using few data. Compared with the traditional results of FFT spectrum, it could verify the advantage of short serial data analysis and could provide a practical algorithm for real-time road surface roughness spectrum survey instrument.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2002年第20期1794-1796,共3页
China Mechanical Engineering
基金
福建省教育厅科学基金资助项目(JA0 1 0 51 )
关键词
路面谱
路面平度
空间频率
时间频率
谱估计
参数模型法
road surface roughness spatial frequency time frequency spectral estimation parameter model
