基于多体系统运动学理论的三轴转台装配误差建模分析  

Error Analysis of Three-axis Turntable Aimed at Assembling Based on Multi-system Kinematics Theory

作　　者：李岩[1] 范大鹏[1] 

机构地区：[1]国防科学技术大学机电工程与自动化学院,湖南长沙410073

出　　处：《兵工学报》2007年第8期981-987,共7页Acta Armamentarii

摘　　要：作为造成三轴转台最终误差主要的系统误差源,装配误差在装配过程中难以避免。本文应用多体系统运动学误差理论和齐次变换推导了考虑装配误差影响的三轴转台最终误差公式。通过仿真比较了各误差项对三轴转台定向及定位精度的影响,探讨了三轴转台有误差的运动规律,为误差指标的分配、误差概率设计和最终误差的分离奠定了基础。The assembling error of three-axis turntable is unavoidable during assembling process, which is one of the primary system error sources. The terminal error expression of the turntable was deduced by the theories of multi-system kinematics error and homogeneous translation in consideration of the assembling errors＇ effect. The influences of all error items on the precisions of orientation and location for the turntable were compared by the simulated results. The kinematics law of the turntable with error was explored. The above mentioned researches lay the foundations for error allocation, error probability design and error separation.

关 键 词：机械学 空间机构学 多体系统 运动学 装配误差 转台 定位误差 

分 类 号：TH11[机械工程—机械设计及理论]