汽车行驶平顺性的预测及优化设计
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摘要
以货车为研究对象，将其简化为八自由度动力学模型，用前后车轮的路面随机激励作为系统的输入，分析了系统的时域响应和频域响应，提出了一种预测汽车行驶平顺性并对其进行优化设计的方法，在汽车行驶平顺性的分析与研究中，具有一定的实用价值
In this paper,a dynamic model with eight degrees of freedom was established for automobiles.In this model,four random excitatious respectively from four wheels were taken as the input functions of the vibration system.Time and frequency responses were calculated by using this model.The results show that this model can be better used in prediction of ride comfort and in its optimal design for automobiles.
In this paper,a dynamic model with eight degrees of freedom was established for automobiles.In this model,four random excitatious respectively from four wheels were taken as the input functions of the vibration system.Time and frequency responses were calculated by using this model.The results show that this model can be better used in prediction of ride comfort and in its optimal design for automobiles.
引文
1余志生．汽车理论．北京：机械工业出版社，19812庄表中，王行新．随机振动理论．北京：地震出版社，19823刘维信．机械最优设计．北京：清华大学出版社，19864LeeProdko．Analyticalanalysisofhumanvibration．SAETrans860091，1986
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