畢业设计克莱斯勒300C轿车悬架系统设计说明书.docVIP

摘 要 平顺性是现代高速、高效率汽车的一个主要性能,汽车平顺性直接影响到人和车辆。汽车平顺性的好坏直接影响到乘员的舒适性、工作效能和身体健康。由于人们对汽车的乘坐舒适性和安全性要求逐渐提高，同时对汽车的悬架系统也提出了很高的要求。因此悬架设计关系到汽车使用性能的优劣，具有重要的理论和实际应用意义。本次毕业设计主要研究的是高级轿车克莱斯勒300C悬架系统。 因此本次设计悬架系统的前悬架采用不等长双横臂式独立式悬架，不等长双横臂式独立悬架能保证汽车有良好的行驶稳定性，已为高级轿车的前悬架所广泛采用。后悬架采用多连杆式独立式悬架，五连杆式独立悬架具有卓越的操纵性和更高的响应性，具有非凡的行驶平稳性。根据给定的车型和悬架形式来进行悬架参数的确定，有悬架的固有频率、悬架的刚度、静挠度和动挠度。并以此计算所选弹性元件的尺寸并且进行应力校核。通过阻尼系数和最大卸荷力确定了减振器的主要尺寸。最后进行了导向机构和横向稳定杆的设计。 采用CAXA软件分别绘制前后悬架的装配图和零件图。利用Matlab软件对悬架系统的平顺性和运动稳定性进行了编程分析，论证了该系统设计方案的合理正确性，能够满足实际的需要。 关键词：高级轿车；悬架设计；平顺性；弹性元件 Abstract Ride a modern high-speed, high efficiency, a key performance cars, automobile ride a direct impact on people and vehicles. Car ride will have a direct impact on passenger comfort, efficiency and physical health. Due to peoples car comfort and safety requirements gradually increase, while the cars suspension system also made high demands. Therefore suspension design related to the merits of car use is an important theoretical and practical application of significance. The graduation project is the senior research sedan Chrysler 300 C suspension system. Therefore, the design of the front suspension suspension system ranging from a long double arm independent suspension, ranging from long double arm independent suspension can guarantee a good car driving stability, for the car before the High Suspension by the widespread adoption. After the suspension multi-link independent suspension, five-link independent suspension with excellent maneuverability and a higher response, with remarkable smoothness of the traffic. According to the models and suspension forms to determine the parameters of a suspension, a suspension of the natural frequency, the suspension stiffness, static and dynamic deflection deflection. And to calculate the size of the selected components and flexibility to stress checking. By damping and unloading of the largest absorber identified the main dimensions. Finally, the horizontal direction and Wen Dinggan design.