191问答库 > 摩托车消声器是在空气中还是在发动机上减弱噪声

摩托车消声器是在空气中还是在发动机上减弱噪声

2025-03-15 12:42:32
推荐回答（2个）
回答1：

摩托车的消声器，主要有两种方式结合，一是借助于管道截面的突然扩张（或收缩）或旁接共振腔，使沿管道传播的某些频率的声波在突变处向声源方向反射回去，从而达到消声目的；二是利用消声材料或吸声结构的吸声作用，使沿管道传播的噪声随距离而衰减，从而达到消声目的。消声器是把排气噪音在排气管中消除的，不是在发动机上。

回答2：

都不是，关键是消声器。

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