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噪声公害主要由交通噪声构成,因而降低车辆的噪声引起了社会广泛的兴趣和高度的重视。以目前和将来的严格的噪声限制法规作为基础,降低全部车辆噪声必须有多种不同的方案设计。它们是以综合车辆(如卡车、客车、摩托车)有关的和相应的发动机有关的两方面措施为基础,由每单个噪声源在总噪声中所占的份量而最终确定。 屏蔽是控制车辆噪声的关键要素,因为它具有高的有效性和应用的易行性。但是必须确保车辆运行没有过热的问题。对发动机而言,则需要完整的动力传输、进排气系统的优化设计,其中包括燃烧或机械冲击噪声源的优化、机体的结构优化以及各种部件噪声辐射的优化设计等。
Noise pollution is mainly composed of traffic noise, thus reducing the noise of vehicles has aroused widespread social interest and great attention. Based on current and future stringent noise-limiting regulations, there are many different scenarios that must be addressed to reduce overall vehicle noise. They are based on two measures related to the integration of vehicles (eg trucks, buses, motorcycles) and their respective engines, and are ultimately determined by the share of each individual noise source in the total noise. Shielding is a key element in controlling vehicle noise because of its high effectiveness and ease of application. However, it is important to ensure that the vehicle is not overheated. For the engine, you need a complete power transmission, intake and exhaust system optimization design, including combustion or mechanical impact noise source optimization, the body’s structural optimization and various components of the optimal design of radiation.