A multilevel optimal method and its engineering application for heterotypic space grid structure

被引：0
|
作者：
Hou G.-L. [1 ]
Wang X.-D. [1 ]
Qiu J.-J. [2 ]
机构：
[1] College of Aerospace & Civil Engineering, Harbin Engineering University, Harbin, 150001, Heilongjiang
[2] Jiangxi Zhaohui Urban Construction Co., Ltd, Nanchang, 330000, Jiangxi
来源：
Gongcheng Lixue/Engineering Mechanics | 2018年 / 35卷
关键词：
Discrete variable; Heterotypic space grid structure; Multilevel optimization method; Relative difference quotient algorithm; Structural design;
D O I：
10.6052/j.issn.1000-4750.2017.05.S037
中图分类号：
学科分类号：
摘要：
The heterotypic space grid structure (HSGS) is featured with complex mechanical behavior, a variable structural shape and a strong correlation relationship among structural parameters. HSGS's optimization has always been a challenging subject. By studying geometrical characteristics and mechanical behavior of HSGS, a multilevel optimization method was proposed to minimize the HSGS weight. In the first stage, the strength and stability of HSGS members were optimized in the local constraint. In the second stage, the overall stiffness and stability of HSGS were optimized in the overall constraint. The computational optimization method for HSGS was realized by combining the discrete variable optimization design theory with the relative difference quotient algorithm. The multilevel optimization method of HSGS was programmed by using the ANSYS parameterized language. The validity of the optimization method and program were testified by comparing the results of a real engineering case from the multilevel optimization method with the results of the MST software. © 2018, Engineering Mechanics Press. All right reserved.
引用
收藏
页码：188 / 192and199
相关论文
共 11 条
  • [1] Lan T., Sixty years of spatial structures in China, Building Structure, 39, 9, pp. 25-27, (2009)
  • [2] Maxwell J.C., Scientific Papers, Vol.2, New York: Dover Publications, pp. 175-177, (1952)
  • [3] Zhou Z., Meng S., Wu J., Study on fuzzy optimization design for large-span arch-suspended prestressed reticulated shells, Engineering Mechanics, 2, pp. 129-134, (2012)
  • [4] Deng H., Dong S., Shape optimization of spatial latticed structures, Journal of Zhejiang University (Engineering Science), 33, 4, pp. 371-375, (1999)
  • [5] Wang Y., Section optimization of complex trusses under multiple load cases, Journal of Yanshan University, 25, 3, pp. 241-244, (2001)
  • [6] Kaveh A., Talatahari S., Hybrid algorithm of harmony search, particle swarm and ant colony for structural design optimization, Harmony Search Algorithms for Structural Design Optimization, 239, pp. 159-198, (2009)
  • [7] Alvani K.S., Hadi M.N.S., discrete optimization of truss structures with geometrically non-linear behaviour using genetic algorithms, Applied Mechanics: Progress and Applications, pp. 575-580, (2015)
  • [8] Li Y., Zhang Y., The two-level algorithm of discrete variable structure optimization, Journal of Beijing University of Technology, 32, 10, pp. 883-889, (2006)
  • [9] Lu X., The optimum design of discrete variable structure, (2013)
  • [10] GB 50017-2003, Code for design of steel structures, (2003)
12