毕业论文---轿车动力总成悬置系统优化设计研究

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1、 目 录 轿车动力总成悬置系统优化设计研究 摘 要 随着社会的日益进步和科学技术的不断发展，人们对汽车舒适性的要求也越来越高， 良好的平顺性和低噪声是现代汽车的一个重要标志。 NVH 已经成为衡量汽车质量水平的重 要指标之一。 而动力总成是汽车最重要的振源之一。 如何合理设计动力总成悬置系统能明 显降低汽车动力总成和车体的振动已经成为一个重要的课题。 本课题研究的目的是在现有动力总成悬置系统的基础上，优化动力总成悬置系统参 数，达到提高整车平顺性和降低噪声的目的。 对动力总成悬置系统进行优化仿真， 通过比较优化前的性能可知， 优化后悬置系统隔 振性能明显改善。 关键词：动力总成；悬置系统；优化

2、 摘要 Investigation on Optimization Design of Plant Mounting System of a Passenger Car Abstract With the increasing social progress and the continuous development of science and technology, people on the requirements of automotive comfort become more sophisticated and good ride comfort and low noise i

3、s an important sign of the modern automobile. NVH levels have become an important measure of vehicle quality indicator. The vehicle powertrain is one of the most important vibration source. How to design mounting system can significantly reduce the vehicle powertrain and body vibration has become an

4、 important issue. This study is aimed at existing powertrain mounting system, based on parameters optimization of powertrain mounting system, to improve vehicle ride comfort and reduce noise. On the optimization of powertrain mounting system simulation, the performance by comparing the known before the optimization, the optimized mounting system significantly improved. Key words: Powertrain;Mounting system;Optimization Abstract 1 绪 论 1.1 选题依据 汽车是日常生活中被广泛应用的交通工具， 其本身可以被看作是一个具有质量、 弹性 和阻尼的振动系统。 汽车产