| 轨道交通车辆车轮踏面短波不平顺测试与分析 |
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| 引用本文： | 程小平,练松良,陈敏敏.轨道交通车辆车轮踏面短波不平顺测试与分析[J].石家庄铁道学院学报,2010,23(1):6-10,46. |
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| 作者姓名： | 程小平 练松良 陈敏敏 |
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| 作者单位： | 同济大学,道路与交通工程教育部重点实验室,上海,201804 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 城市轨道交通轮轨表面短波不平顺是激发线路沿线振动与噪声的主要原因,准确而高效的测量轮轨表面短波不平顺是振动噪声预测、评估及源头控制的重要条件。通过对上海城市轨道交通2号线部分车辆轮踏面不平顺进行现场测试,利用统计分析、1/3倍频和功率谱分析研究了轮踏面不平顺时、频域组成特性。结果表明所测试的轨道交通车辆轮踏面不平顺水平是比较低的,大部分不平顺幅值积聚在3~13μm;在短波范围内,波长大于4.0 cm时不平顺状态比ISO3095标准要好,小于2.5 cm时不平顺状态较标准差;主要波长分布在57.7~95.2 cm,且大部分集中在70~80 cm,平均值为72.1 cm。
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| 关 键 词： | 轮踏面 短波不平顺 直接测量法 间接测量法 Pits Spikes |
Measurement and Analysis of Wheel Surface Short Wavelength Irregularity of Rail Transit Vehicle |
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| Cheng Xiaoping,Lian Songliang,Chen Minmin.Measurement and Analysis of Wheel Surface Short Wavelength Irregularity of Rail Transit Vehicle[J].Journal of Shijiazhuang Railway Institute,2010,23(1):6-10,46. |
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| Authors: | Cheng Xiaoping Lian Songliang Chen Minmin |
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| Institution: | Cheng Xiaoping,Lian Songliang,Chen Minmin(Key Laboratory of Road , Traffic Engineering of the Ministry of Education,Tongji University,Shanghai 201804,China) |
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| Abstract: | 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 analys... |
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| Keywords: | Pits Spikes |
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