直接转移方式的木星探测器构型设计及轻量化

基于木星探测器直接转移方案设计了3种木星探测器构型并进行有限元仿真,比较发现三翼承力筒构型在满足质量包络的同时,具有最高的模态基频。以该构型为基础,对整体复合材料板铺层厚度进行尺寸优化,使得整器结构的质量从112.5 kg下降到81.5 kg,降低了27.6%。以服务舱隔板为设计区域开展局部的拓扑优化,使隔板质量从12.3 kg下降为11.2 kg,下降了8.9%。根据运载要求,对优化后整器模型进行基频验证:最小横向和纵向基频分别为9.967 Hz和23.567 Hz,满足运载基频要求,具有工程可行性。

Lightweight Structure Design of Jupiter Detector Based on Direct Transfer

Three Jupiter detector structures are designed based on the Jupiter detector direct transfer scheme and the finite element simulations are carried out.It is found that the three-wing bearing cylinder structure is of the highest modality on the premise of satisfying the mass envelope.Based on this structure,the thickness of the composite sheet layup in the overall structure is optimized,thus reducing the weight of the detector structure from 112.5 kg to 81.5 kg,which is reduced by 27.6%.Then,the local topology optimization is carried out for the service compartment partition.The results show that the mass of the partition decreases from 12.3 kg to 11.2 kg,by 8.9%.According to the carrying requirements,the optimized overall model of the detector is verified by the fundamental frequency:the minimum horizontal and vertical fundamental frequency is 9.967 Hz and 23.567 Hz,it satisfies the horizontal and vertical fundamental frequency requirements of the carrier.