三轴气浮台中伞形工作平台的设计及不平衡力矩研究  

Design and Research of Unbalance Torque on Umbrella Style Platform of Three Axis Air-bearing Testbed

作　　者：解鹏[1] 邢利娜[1] 金光[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：《光机电信息》2011年第11期75-79,共5页OME Information

摘　　要：三轴气浮台是空间飞行器全物理仿真的核心设备,其工作平台的设计及自重下的不平衡力矩研究是采用三轴气浮台进行全物理仿真试验的重要保障。本文根据仿真试验的要求对其伞形工作平台进行了设计,然后基于运动弹性动力学理论建立了三轴气浮台的工作平台的力学模型,并推导出自重下在三轴气浮台进行姿态变化时的平台质心变化公式,从而获得了气浮台伞形工作台不平衡力矩的计算公式。通过公式对所设计的伞形工作平台不平衡力矩进行了计算,结果表明,不平衡力矩最大时为0.23×10-4N·m,能够很好地满足仿真要求,为下一步的仿真试验提供了良好的基础。The three axis air-bearing testbed is the core of the physical simulation equipment,the design and research of unbalance torque on umbrella style platform of three axis air-bearing tested are important guarantee of the physical simulation.Based on the requirements of the simulation,this paper designs the umbrella style platform,then based on the method of kineto-elastodynamic analysis,founds the mechanical model of the umbrella style platform of three axis air-bearing testbed,and the formula for the platform structure mass-center displacement and for unbalance torque of umbrella style platform arising from self-weight deformation are deduced.By the formula,the unbalance torque of umbrella style platform are calculated.The results show that the max-unbalanced torque is 0.23×10-4 N·m,it can meet the requirements of simulation well and provide a good foundation for the next simulation.

关 键 词：三轴气浮台 伞形工作平台 设计 不平衡力矩 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]