摘要
将大型射电望远镜的悬索馈源舱体系统类比于Stewart平台，对其进行奇异性的研 究。考虑柔性悬索只能承受拉力的特点和天文观测的要求，分析了馈源 舱的可实现工作空间。基于系统的非线性静力平衡方程，根据力传递Jacobian矩阵的行列式 和条件数，剖析了工作空间内部的力奇异性。研究结果为确定系统工作空间提供了依据，为 改进系统结构设计，消除奇异性提供了参考。
The cable-cabin system of a large radio telescope ha s resemblance to Stewart platform. The feed cabin is drawn with six cables to trace an object as if Stewart platform is drawn with six legs to manufacture a p art. Considering flexibility of the long cables, the realized workspace is analy zed. Based on the nonlinear static equilibrium equations of the system, the forc e singularity is described by the determinant and condition number of the Jacobi an matrix clearly. The singularity may be eliminated according to the rese arch in future.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2001年第2期135-139,共5页
China Mechanical Engineering
基金
国家自然科学基金(59675040)
中国科学院国家天文观测中心大射电望远镜实验室经费资助项目
