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首页> 外文期刊>Journal of aerospace engineering >Robust Optimal Design for Surface Accuracy of Mesh Reflectors Considering Cable Length Inaccuracy
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Robust Optimal Design for Surface Accuracy of Mesh Reflectors Considering Cable Length Inaccuracy

机译：考虑电缆长度不准确的网眼反射器表面精度的强大最优设计

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摘要

Mesh reflectors are widely employed for large space antennas due to their lightweight, compact, and easy package. Their cable length has to be carefully designed to guarantee the reflector surface shapes the desired paraboloid rigidly. In this paper, a robust optimal design is addressed for mesh reflectors, aiming at reducing the adverse impact on reflector surface accuracy of the inevitable inaccuracy in cable lengths during manufacturing and assembly. The objective of the robust design of mesh reflectors is to find the optimal cable length, so that mesh reflectors have the best nominal surface accuracy with as low as possible variations that result from uncertain cable length inaccuracies. Because the best surface accuracy is at a minimum and has a zero first-order gradient, a second-order variation model for the surface accuracy is employed. Numerical examples show the proposed method can achieve an effective, robust optimal design that is insensitive to the inaccuracy in cable lengths.
机译：由于其轻巧，紧凑且易于包装，网格反射器广泛用于大型空间天线。它们的电缆长度必须仔细设计，以保证反射器表面刚性地形成所需的抛物面。在本文中，针对网格反射器寻址了稳健的最佳设计，旨在降低制造和组装期间电缆长度在电缆长度不可避免的不准确性的反射镜表面精度的不利影响。网眼反射器的稳健设计的目的是找到最佳的电缆长度，使网格反射器具有最佳的标称表面精度，与不确定的电缆长度不准确的可能变化。因为最佳表面精度最小并且具有零一阶梯度，所以采用了用于表面精度的二阶变型模型。数值示例示出了所提出的方法可以实现有效，坚固的最佳设计，这些设计对电缆长度的不准确性不敏感。

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  • 来源
    《Journal of aerospace engineering》 |2021年第1期|04020090.1-04020090.7|共7页
  • 作者

    Jingli Du; Yuezhen Zhang; Congsi Wang; Yiqun Zhang;

  • 作者单位

    Key Laboratory of Electronic Equipment Structure Design of Ministry of Education Xidian Univ. Mailbox 191 No. 2 South Taibai Rd. Xi'an Shaanxi 710071 China;

    Key Laboratory of Electronic Equipment Structure Design of Ministry of Education Xidian Univ. Mailbox 191 No. 2 South Taibai Rd. Xi'an Shaanxi 710071 China;

    Key Laboratory of Electronic Equipment Structure Design of Ministry of Education Xidian Univ. Mailbox 191 No. 2 South Taibai Rd. Xi'an Shaanxi 710071 China;

    Key Laboratory of Electronic Equipment Structure Design of Ministry of Education Xidian Univ. Mailbox 191 No. 2 South Taibai Rd. Xi'an Shaanxi 710071 China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Robust optimal design; Cable structures; Mesh reflectors; Optimization;

    机译：强大的最佳设计;电缆结构;网格反射器;优化;

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