The embodiment of the invention provides an in-vehicle noise reduction method and device for a railway vehicle. The method comprises the steps that noise testing is carried out in the vehicle to obtain noise information; analyzing the contribution amount of the vehicle panel according to the noise information to obtain a weak combined part; testing the weak combined part to obtain the sound insulation index of the weak combined part; performing sound insulation weight analysis on the layered structure of the weak combined part according to the sound insulation index of the weak combined part to obtain a weight analysis result; and taking the weight analysis result and a preset index as boundary input to obtain a noise reduction optimization scheme. On the premise of taking the vehicle noise as a control target, the weak area of the component is identified, the sound insulation index layered decoupling is performed on the weak area structure, multiple targets are compatible, and one or more parameters of the vehicle combined structure are reasonably designed, so that the most reasonable noise reduction scheme is realized. The vehicle design time and cost can be saved, and the method has universality and popularization prospects.
本申请实施例提供一种轨道车辆车内降噪方法及装置,所述方法包括:在车内进行噪声测试获得噪声信息;根据所述噪声信息对车辆面板贡献量进行分析获得薄弱组合部件;对所述薄弱组合部件进行测试获得所述薄弱组合部件的隔声量;根据所述薄弱组合部件隔声量对所述薄弱组合部件的分层结构进行隔声权重分析获得权重分析结果;将所述权重分析结果和预先设定的指标作为边界输入获得降噪优化方案。本申请以车辆噪声为控制目标的前提下,识别部件薄弱区域,对薄弱区域结构进行隔声指标分层解耦,兼容多目标,合理设计车辆组合结构的一项或多项参数,以实现最合理的降噪方案。本申请能够节约车辆设计时间和成本,具有普遍使用性和推广前景。
Method and device for reducing noise in railway vehicle
一种轨道车辆车内降噪方法及装置
2024-05-14
Patent
Electronic Resource
Chinese
IPC: | G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES , Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen |
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