Design of a lunar sample container load bearing frame with transfer function

摘要

The sample container is one of the key components in the lunar exploration and has to undertake, package and transfer the sample. A new kind of load bearing frame structure is designed to carry the container integrated with interface of the sample transfer. There are three kinds of basic structure in the frame design, H type, X type and * type. Through the virtual work principle and Du's article, we calculated their rigidity and compared them. We get the conclusion that the rigidity of * type is better than X type and H type. We simulated the recent designed frame with 2 * type and 1 X type and get the first six modes, which can also prove that the rigidity of * type is better than X type. The simulation results prove the fundamental frequency meets the aerospace products requests.