The Bus Interior Noise Source Identification And Noise Control

With the development of modern automobile technology, the vehicle interior noise has become one of evaluation guidelines of vehicle comfort performance. The problem of vehicle interior noise has greatly attracted the attention of related scientists and researchers all over the world. Based on the project of THE INTERIOR MECHANISM OF PASSENGER CAR AND NOISE DECREASING TECHNOLOGY this paper thoroughly researched the current situation of vehicle noise technology and the noise controlling methods in and abroad the country. Besides, this paper carefully researched the interior noise of a bus using sound intensity measuring, found the main noise source and gave the plan of decreasing the interior noise. It has been proved that the plan is resultful----the interior noise of the bus has been reduced greatly; meanwhile the plan is economic----the implement of the plan bring almost no increase to the cost of the bus. In addition, this paper initially researched the method and theory of optimizing design of passenger car. These researches are conducively explore to our country's vehicle noise control, and will become the base of the research in this aspect.