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Configuration optimization of clamping members of frame-supported membrane structures

机译：框架支撑膜结构的夹持构件的结构优化

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摘要

A method is presented for configuration optimization of frames that have specified properties on nodal displacements, stresses, and reaction forces against static loads. The conventional ground structure approach is first used for topology optimization. A feasible solution with a small number of members satisfying all the design requirements except the stress constraints is obtained by assigning artificially small upper-bound displacement, or by penalizing the stiffness of a thin member. This way, the well-known difficulty in topology optimization under stress constraints is successfully avoided. The nodal locations and cross-sectional areas of the feasible solution are next optimized to obtain an approximate optimal configuration under stress constraints. The proposed method is applied to the design of self-fastening clamping members for membrane structures modeled using frame elements. An optimization result is also presented for a clamping member that adjusts deformation of membrane by applying a clamping force with a vertically attached bolt.
机译：提出了一种用于框架优化配置的方法，该框架在节点位移，应力和抵抗静载荷的反作用力方面具有特定的属性。首先将常规的地面结构方法用于拓扑优化。通过人为地分配较小的上限位移或通过惩罚薄构件的刚度，可以获得一种可行的解决方案，该构件具有数量有限的构件，除了应力约束外，其满足所有设计要求。这样，成功避免了在应力约束下进行拓扑优化的众所周知的困难。接下来，对可行解的节点位置和横截面积进行优化，以获得在应力约束下的近似最佳配置。所提出的方法被应用到使用框架元素建模的膜结构的自紧固夹持构件的设计中。还提出了一种夹紧构件的优化结果，该夹紧构件通过使用垂直连接的螺栓施加夹紧力来调节膜的变形。

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  • 来源
    《Engineering Structures》 |2011年第12期|p.3620-3627|共8页
  • 作者

    M. Ohsaki; T. Nakajima; J. Fujiwara; F. Takeda;

  • 作者单位

    Department of Architecture, Hiroshima University, Japan,1-4-1, Kagamiyama, Higashi-Hiroshima 739-8527. Depart-ment of Architecture, Hiroshima University, Japan;

    Department of Architecture and Architectural Engineering, Kyoto University, Japan;

    Technical Research Center, Taiyo Kogyo Corporation, Japan;

    Technical Research Center, Taiyo Kogyo Corporation, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    membrane structure; clamping member; configuration optimization; stress constraints;

    机译：膜结构夹紧件;配置优化;压力约束;

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