讨论轮轨噪声激扰之一：冲击噪声激扰。
The impact noise excitation is discussed, and the time-history inputting models for impact noise excitations are founded.
城市轨道交通噪声主要由轮轨噪声、动力设备噪声、结构振动噪声组成。
Vibration and noise of urban rail transit have become an intractable probelm. The noise consists of three parts: that induced by wheel and rail; by engine and by viaduct structure.
轨道不平顺是引起车体振动加速度、轮轨作用力和轮轨噪声增大的主要因素之一。
Track irregularity is one of the factors that make the increase of car body vibration, wheel-rail interaction force and wheel-rail noise.
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