ZHAO Pu. Simulation on fault-tolerant inverse kinematics of hyper-redundant truss manipulator[J]. 2017, 36(1): 20-23. DOI: 10.13873/J.1000-9787(2017)01-0020-04.
超冗余度桁架机械臂的容错逆运动学仿真
摘要
超冗余度桁架机械臂路径规划中的逆运动学解算为一非线性优化问题
桁架机械臂冗余度高
容错性好
由于传统方法速度和收敛性较慢
冗余性和容错性未能得到很好的利用。为解决此问题
引入收敛速度较快的对偶内点法
针对问题规模较大占用内存多的特点
设计了一种基于稀疏矩阵向量相乘的减小内存方案。搭建了仿真平台
进行了三组正常和故障状态逆向运动学仿真解算
结果表明:该方法收敛性好
解算迅速
在故障状态下的逆运动学解算也较为理想
适用于进一步实际应用。
Abstract
Inverse kinematic resolving in hyper-redundant truss manipulator path plan is a non-linear optimization problem. Truss maniplulator has high redundant and fault tolerant
but due to low convergence and rate of traditional algorithms
redundancy and fault tolerance are not well utilized. To solve this problem
a fast interior point algorithm is implemented. To reduce high memory cost
a sparse matrix-vector multiplication( Sp MV)-based memory-decreasing algorithm is introduced. Simulation platform is built. Three simulation resolving are conducted for both normal and fault conditions. The results indicate the methed has good convergence
fast resolving rate
and inverse kinematics resolving under fault condition as well
suits for practical implementation.
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references
Interior point methods 25 years later [J] . Jacek Gondzio. European Journal of Operational Research . 2011 (3)