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光电测量吊舱工作于高速、高空、高风载、高振动条件下,且受制于其气动特性,故体积无法太大,因此吊舱舱体内部的结构部件需要完全适应上述苛刻条件,且做到结构紧凑。首先分析了吊舱头部局促空间的设计要求。该吊舱头部最大外形尺寸为390mm×600mm。但该空间内包含三对轴承、四个框架、两套可见光电视系统、一套光路快速控制系统及相关的电路、控制陀螺等元器件。因此在如此狭小的空间内合理配置如此多的系统必须进行相应的结构优化设计与分析。根据充分的论证分析提出了一系列设计要求。根据设计要求对吊舱头部关键部件进行了参数计算、型号选择、结构设计。应用MSCPATRAN软件对基座和横滚框架进行了有限元模态和静力学分析,验证了设计的合理性。
Photoelectric measuring pods work in high speed, high altitude, high wind load, high vibration conditions, and subject to its aerodynamic characteristics, so the volume can not be too large, so the cabin components within the pod body to fully meet the harsh conditions, and do To the compact structure. Firstly, the design requirements of the cramped head of pods are analyzed. The maximum head size of the pod 390mm × 600mm. But the space contains three pairs of bearings, four frames, two sets of visible and television systems, a set of optical fast control system and related circuits, control of gyros and other components. So in such a small space reasonable allocation of so many systems must be the appropriate structural optimization design and analysis. According to the full argument analysis put forward a series of design requirements. According to the design requirements, the key components of the pod head were calculated, model selection and structural design. The application of MSCPATRAN software to the pedestal and roll frame finite element modal and static analysis to verify the rationality of the design.