1. 研究目的与意义（文献综述）

1.purpose and significance

1.1 function of suspensions

comfort is one of the most important performances of a car. comfort is related to the inherent vibration characteristics of the body, and the inherent vibration characteristics of the body are related to the characteristics of the suspension. when the car is driving, the unevenness of the road will arouse the vibration of the car. when this vibration reaches a certain level. it will make the passenger feel uncomfortable or damage the carrying goods. at the same time, due to the dynamic load between the wheel and the road surface, it will also affect their adhesion, which will also affect the steering stability of the car. in addition, the car may cause changes in body posture (pitch and roll, etc.) due to acceleration, braking, steering, and the like. it can also make passengers feel uncomfortable. therefore, it is of great significance to study the vibration and stress of the vehicle and take effective measures to control it to the lowest level, which is to improve the ride comfort and steering stability of the vehicle.

2. 研究的基本内容与方案

2.basic content and objective, technical solution and measure

2.1 basic content and objective

(1) overview of research status and significance of automotive suspension system design at home and abroad;

3. 研究计划与安排

3.schedule

(1) 1-2 (7th week of the 7th semester) determine the graduation design topic, improve the graduation design task book (related parameters), school data collection.

(2) 3 (8th week of the 8th semester) project conception, literature search, completion of the opening report.

4. 参考文献（12篇以上）

4.references

[1] 陈家瑞.汽车构造[m]. 机械工业出版社, 2009-6-1，第三版.

[2] 余志生.汽车理论[m]. 机械工业出版社, 2009-3-1，第五版.