路面对汽车非平稳激励的时域仿真及小波分析

王国林;胡蛟;钱金戈

振动与冲击 ›› 2010, Vol. 29 ›› Issue (7) : 28-32.

PDF(1349 KB)
PDF(1349 KB)
振动与冲击 ›› 2010, Vol. 29 ›› Issue (7) : 28-32.
论文

路面对汽车非平稳激励的时域仿真及小波分析

  • 王国林; 胡蛟; 钱金戈
作者信息 +

Simulation in Time Domain for Nonstationary Road Disturbances and its Wavelet Analysis

  • WANG Guo-lin ;HU Jiao ;QIAN Jin-ge
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文章历史 +

摘要

建立了非平稳的四轮相关滤波白噪声路面随机激励时域模型,并结合离散事件对汽车单点激励的时域模型进行联合仿真。采用小波分析对仿真路面信号进行时频分析及谱估计,深入揭示非平稳路面激励的特征和性质,为路面破损检测及汽车平顺性分析提供基础和新的方法。

Abstract

Mathematical models in time domain for road disturbances including random road disturbances and discreted event road ones were developed. The numerial simulation with the models was carried out.Time-frequency analysis and spectral estimation techniques of wavelet were used to study the simulation of road signals, the characteristics and nature of nonstationary road disturbances were revealed. The study reswlts proide a new approach for pavement damage detection and analysis of vehicle ride comfort analysis.

关键词

非平稳路面激励 / 四轮相关时域模型 / 时频分析 / 小波功率谱

Key words

non-stationary road disturbances / four-wheel related time domain model / time-frequency analysis / wavelet power spectrum

引用本文

导出引用
王国林;胡蛟;钱金戈. 路面对汽车非平稳激励的时域仿真及小波分析[J]. 振动与冲击, 2010, 29(7): 28-32
WANG Guo-lin;HU Jiao;QIAN Jin-ge. Simulation in Time Domain for Nonstationary Road Disturbances and its Wavelet Analysis [J]. Journal of Vibration and Shock, 2010, 29(7): 28-32

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