Abstract
To control shock responses of mechanical structures, Momentum Exchange Impact Dampers (MEIDs) have already been proposed. They have been applied to reduce floor shock vibration and control lunar exploration spacecraft landing. This paper discusses a design methodology which reduces mechanical structures' shock responses. MEIDs are applied to a multi-legged landing gear system. The system consists of a spacecraft body and damper masses. They are connected by springs (MEID springs). The system is fallen on a slope. In this paper, the damper mass is separated to 2 masses. One reduces rotational motion, the other reduces translational motion. The MEID springs are pre-compressed to increase the transferable momentum. They are released after landing on a slope. The effectiveness of the proposed method is verified by simulations.
