Study on optimization of structure parameters to the penetrator

The impact type penetrator is a compact, lightweight and low power consumption device, using internal hammering mechanism to move downward by compaction of lunar soil in space exploration. This paper proposes an optimal design method for the impact type penetrator. The method main to optimize the structure parameters for housing element (M2), suppressor element (M0) and hammer element (M1) of the penetrator. First of all, to realize optimal structure parameters of the penetrator, dynamic model of the penetrator have to be established. Secondly, through analyzing the whole movement process of the penetrator and dynamic modeling of the penetrator. In the end, The optimization results can be obtained base on the frame work of the proposed method. The paper presents results show that the displacement of housing element is varied with every structure parameters.