Abstract
In our previous research, we focused on vehicle suspension systems as promising application targets of a compliant mechanism and proposed a design method for a suspension using compliant mechanism. The design method is evaluated only static characteristics. However, in order to design more practical suspension, a dynamic function should be taken into consideration in the design method. This is why the main functions of a vehicle suspension are improving ride quality and running stability by absorbing vibration from road surface while running. Therefore, in this paper, we focus on static and dynamic characteristics of a compliant suspension and study on a structural optimization method considering them. The natural frequency of the sprung mass and unsprung mass is considered as the dynamic characteristics. Then, to raise the natural frequency, we consider the eigen frequency of a compliant suspension is raised.
