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作 者:赵悦
机构地区:[1]中国民用航空飞行学院,四川 广汉
出 处:《交通技术》2021年第3期199-206,共8页Open Journal of Transportation Technologies
摘 要:曲线啸叫噪声是轨道交通车辆通过小半径曲线时产生的长而尖啸似的噪声,其通常较轮轨滚动噪声大10~30 dB,因此更加令人难以忍受,受到国内外学者广泛研究。目前研究中提出的曲线啸叫噪声产生机理包括轮轨摩擦曲线下降形成机理和模态耦合形成机理。针对这两种形成机理进行详细阐述,并综述两种形成机理相关的预测研究。综述表明:两种曲线啸叫噪声的形成机理均有其合理性,且两种形成机理可以共同作用导致曲线啸叫噪声产生。通过深入了解曲线啸叫噪声的形成机理及特性,可为曲线啸叫噪声的有效控制提供参考,对城市轨道交通发展及轨道交通环境噪声污染治理具有重要意义。Curved squeal noise is a long and screaming noise generated when railway vehicles pass a tight radius curve. It is usually 10~30 dB larger than wheel-rail rolling noise, so it is more unbearable and has been widely studied by domestic and foreign scholars. The formation mechanisms of curve squeal noise proposed in current researches include the formation mechanism of wheel-rail falling friction curve and the formation mechanism of modal coupling. The two formation mechanisms are described in detail, and the related prediction researches on the two formation mechanisms are reviewed. The overview shows that the two formation mechanisms of curve squeal noise are reasonable, and the two formation mechanisms can work together to promote the generation of curve squeal noise. An in-depth understanding of the formation mechanism and characteristics of curve squeal noise can provide a reference for the effective control of curve squeal noise, and is of great significance to the development of urban rail transit and the control of environmental noise pollution in rail transit.
分 类 号:TP3[自动化与计算机技术—计算机科学与技术]
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