| 考虑车身侧倾的三轴汽车三自由度操纵模型 |
| Measurement and Analysis of Wheel Surface Short Wavelength Irregularity of Rail Transit Vehicle |
| 投稿时间：2009-11-23 |
| 中文关键词:三轴汽车 操纵模型 三自由度 侧倾 |
| 英文关键词:wheel surface short wavelength irregularity DRM IDRM Pits Spikes |
| 基金项目: |
|
| 摘要点击次数: 819 |
| 全文下载次数: 611 |
| 中文摘要: |
| 在两轴汽车三自由度操纵模型的基础上，利用拉格朗日方法详细推导出了三轴汽车三自由度操纵模型，该方法同样适用于其它多轴汽车的建模分析。并给出了三轴汽车在已知整车回转角速度的情况下计算各车轮转速的方法。 |
| 英文摘要: |
| Short wavelength irregularity of wheel/rail surface is the main reason of vibration and noise of railway alongside vicinity. Therefore, measuring the short wavelength irregularity of wheel/rail surface accurately and efficiently has a profound influence on prediction, assessment and source controlling of vibration and noise. Based on the field measured wheel surface roughness data of trains running in Line 2 of Shanghai Urban Rail Transit, such methods as statistics analysis combined with one third octave analysis and PSD analysis have be employed in this paper. Through this research, the below conclusions are drawn: In time domain, the peak value of most wheels’roughness range from 3μm to 13μm. In frequency domain, when the wavelength of irregularity exceeds 4.0 cm, the one third octave value is much smaller than the ISO3095 standard, which means the wheel surface is rather smooth; however, when the wavelength is below 2.5 cm, the one third octave value exceeds the standard. The main wavelengths which devote most to the PSD range from 57.7 cm to 95.2 cm. Especially, most of them are in the range from 70 cm to 80 cm, averaged 72.1 cm. |
| 张伟,冯国胜,贾素梅.考虑车身侧倾的三轴汽车三自由度操纵模型[J].石家庄铁道大学学报：自然科学版,2010,(1):41-. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
| 关闭 |
|
|
|
|
|