地铁列车振动和噪声源分析及减振降噪措施

摘要

地铁列车的振动与噪声涉及到多个学科，是一个整体的系统工程。研究列车振动和噪声控制首先需要了解噪声产生机理和噪声单元的声贡献，从而了解所有振动和噪声的特性，进而加强地铁机车的噪声控制和预测，减小地铁列车噪声污染。阐述了地铁列车振动和噪声源的产生原理，列举了现如今地铁列车噪声预测的方法、列车噪声的测量技术和减振降噪技术。%The vibration and noise subway train involves multiple disciplines, is a whole system works. Train vibration and noise control research first need to understand the mechanism of noise and noise sound unit contribution to understand the characteristics of all the vibration and noise, noise control and predict further strengthen metro locomotives, subway trains to reduce noise pollution. Describes the generation principle subway train vibration and noise sources, is now listed subway train noise prediction methods, measurement techniques and train noise vibration and noise reduction technology.