用于车内减振降噪的智能材料和结构的研究

随着国内外对智能材料和结构研究的日益深入，这一高新技术在汽车工业中的应用前景显示越来越广阔，分析了汽车车内噪声产生的机理，认为利用智能结构进行车内噪声控制主要从三个方面入手：一是消除噪声源；二是隔绝振源与车身之间的振动传递关系，阻断固体传播；三是进行车身振动的主动控制，通过减少振动来消除噪声，对智能材料和结构在汽车减振降噪领域的应用作了探讨和展望。

Study on Intelligent Material and Its Structure to Reduce Inside Vibration and Noise of Motor Vehicle

With increasing study on intelligent material and its structure both in domestic and abroad,the high and new technology has its wide application prospect in automotive industry.The paper analyzes the noise mechanism produced in the inside of motor vehicle,considers the noise control for inside of motor vehicle by using intelligent structure shall be conducted by three ways:1.Elimination of noise source;2.Isolation of vibration transfer relationship between vibration source and vehicle body interrupting the solid transfer;3.Active control of body vibration to eliminate noise by reducing vibration.The applications of intelligent material and its structure in the field of automotive vibration and noise reduction are studied and forecasted.