请各位老大帮我翻译一下这个摘要啊，谢谢。用翻译器的就不要了

Wheel suspension is connected to the car body through the spring, and with the other components with moving the body, it is a frame (or Unibody) and axle (or wheel) flexible connection between the device in general. The role of its role is to pass between the wheels and the frame force and moment, and frame buffer passed by the uneven road surface or the impact of the body, and the resulting shock attenuation to ensure that cars can travel smoothly.
The project is to design a light commercial vehicle suspension system. Through the understanding of the vehicle suspension system, the feasibility of proposed solutions, multi-piece leaf spring suspension for an overall design and calculation, in reference to the structure of light commercial vehicle after suspension, identified the main structure of this design, and elastic components and shock absorbers for the detailed design and calculations. In the design process, first select the type of leaf spring suspension, and then calculated given the known parameters of leaf spring length, width, thickness. Determined by calculating the parameters of the state assembly and freedom of the arc springs and free high curvature. Finally, check the stiffness and strength of leaf spring