空间遥感相机桁架机身接头结构的设计和分析  

Design and Analysis of Joints for Truss Structure of Space Camera

作　　者：张凯[1] 何欣[1] 赵海平[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033

出　　处：《红外》2013年第10期10-15,共6页Infrared

摘　　要：大型空间相机需要使用力学特性强、质量轻以及体积小的机身结构对光学系统和其他系统进行支撑与固定,以保证镜头的成像质量。分析了铰链连接和螺栓连接-胶接方案的特点,并对比了各方案的力学性能。根据支杆材料和机身框架材料的性能,优先选择钛合金作为连接结构的制作材料。考虑到复合材料制造工艺的复杂性以及胶接的高强度和高刚度要求,制定了合理的胶接工艺以避免和控制胶接所产生的应力。最后通过静/动力学试验验证了接头设计方案的有效性。结果表明,螺栓-铰接设计方案是一种优化、合理的设计方案。To ensure imaging quality, the optical and other subsystems of a large space camera need to be supported and fixed by using a structure with good mechanical property, low weight and small volume. The features of a hinge joint and a bolt-glue joint are analyzed and both joints are compared with each other in mechanical property. According to the performance of rod material and frame material used, the titanium alloy is selected as the material for joints. In view of the complexity of composite manufacturing processes and the high strength and stiffness requirements of bonding, a reasonable bonding process which can avoid and control the stress generated during bonding is established. Finally, the effectiveness of this joint design is verified in static and dynamic meehanica~ tests. The test results show that this bolt-glue joint design is an optimized and reasonable one.

关 键 词：空间相机 桁架结构 接头结构 力学试验 

分 类 号：TB852.1[一般工业技术—摄影技术]