魏强, 仇原鹰, 段宝岩, 保宏. 配有索系控制结构的大型射电望远镜悬索平衡张力的优化[J]. 工程力学, 2002, 19(2): 133-137.
引用本文: 魏强, 仇原鹰, 段宝岩, 保宏. 配有索系控制结构的大型射电望远镜悬索平衡张力的优化[J]. 工程力学, 2002, 19(2): 133-137.
WEI Qiang, QIU Yuan-ying, DUAN Bao-yan, BAO Hong. OPTIMIZATION OF CABLE TENSION DISTRIBUTION FOR COMPUTER CONTROLLED CABLE SYSTEM OF LARGE RADIO TELESCOPE WITH DOWNWARD CABLES[J]. Engineering Mechanics, 2002, 19(2): 133-137.
Citation: WEI Qiang, QIU Yuan-ying, DUAN Bao-yan, BAO Hong. OPTIMIZATION OF CABLE TENSION DISTRIBUTION FOR COMPUTER CONTROLLED CABLE SYSTEM OF LARGE RADIO TELESCOPE WITH DOWNWARD CABLES[J]. Engineering Mechanics, 2002, 19(2): 133-137.

配有索系控制结构的大型射电望远镜悬索平衡张力的优化

OPTIMIZATION OF CABLE TENSION DISTRIBUTION FOR COMPUTER CONTROLLED CABLE SYSTEM OF LARGE RADIO TELESCOPE WITH DOWNWARD CABLES

  • 摘要: 在新一代大型射电望远镜(LT)的悬索舱体系统中增加了抑制风激振动的结构控制索系。基于系统的非线性静平衡方程,通过最小二乘运算和优化策略,获得了适于伺服电机控制的索系平衡张力。分析结果为进一步得到各索杆单元的静应力,构造结构平衡时的非线性几何刚度矩阵,分析在静平衡初始条件下,结构控制索系对系统风振的抑制效果奠定了基础。

     

    Abstract: This paper addresses the optimization of the cable-cabin structure utilized in large radio telescope. Downward cables are mounted on the cable-cabin structure to reduce its wind-induced vibration. Based on nonlinear equilibrium equations, optimum cable tension is determined using the least squares method. Numerical examples are provided to verify the present method. It is shown that the present method is effective in control of wind-induced vibration of the cable-cabin structure.

     

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