针对传统铰链结构复杂、锁紧力小及展开基频较低的问题,为提高太阳帆板性能,利用带状弹簧的壳体屈曲性能,设计了易加工装配的简单铰链.具有质量轻、展开可靠、自动锁定及锁定力大等诸多优点。使用有限元软件分析了带状弹簧及铰链的力学特性,并进行了帆板展开动力学仿真.重点研究了太阳帆板结构基频,并推导了厚度和弯曲刚度对基频的影响关系。仿真结果表明,所设计的带状弹簧铰链用于帆板展开,满足系统对展开时间和展开基频的要求且基频优于传统铰链,可为航天器帆板展开机构设计提供参考。
In consideration of the problems of traditional hinges with complex structure, feeble locking force and low fundamental frequency, this paper designs the simple hinge which is easily processed and assembled using shell buckling performance. The hinge has the advantages of low mass, high reliable and strong self-locked. Mechanical properties of tape springs and tape spring hinges were analyzed by using finite element software, and dynamics simula- tion was conducted. Fundamental frequency of solar panels was studied. Meanwhile, the mathematic relations be- tween fundamental frequency and thickness of tape spring and bending stiffness were deduced. The simulation results show that the tape spring hinge can meet the system requirements with the deployment time and fundamental frequen- cy, and fundamental frequency is superior to traditional hinges. The paper can be used as a reference tor the design of deployment mechanism.