Abstract
The guide-weight method is introduced to solve two kinds of topology optimization problems with multiple loads in this paper. The guide-weight method and its Lagrange multipliers’ solution methods are presented first, and the Lagrange multipliers’ solution method of problems with multiple constraints is improved by the dual method. Then the iterative formulas of the guide-weight method for topology optimization problems of minimum compliance and minimum weight are derived and corresponding numerical examples are calculated. The results of the examples exhibits that when the guide-weight method is used to solve topology optimization problems with multiple loads, it works very well with simple iterative formulas, and has fast convergence and good solution. After comparison with the results calculated by the SCP method in Ansys, one can conclude that the guide-weight method is an effective method and it provides a new way for solving topology optimization problems.
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References
Bendsoe M P, Kikuchi N. Generating optimal topologies in structural design using homogenization method. Comput Methods Appl Mech Eng, 1988, 71(2): 197–224
Bendsoe M P, Sigmund O. Material interpolation schemes in topology optimization. Arch Appl Mech, 1999, 69: 635–654
Zuo K, Chen L, Zhong Y, et al. New theory and algorithm research about topology optimization based on artificial material density (in Chinese). Chin J Mech Eng, 2004, 40(12): 31–37
Xie Y M, Steven G P. A simple evolutionary procedure for structural optimization. Comput Struct, 1993, 49: 885–896
Fu J. Application and Research on Topology Optimization Methods of Continuum Structures (in Chinese). Master Degree Thesis. Changsha: Changsha University of Science & Technology, 2005
Wang Y M, Wang X M, Guo D M. A level set method for structural topology optimization. Comput Methods Appl Mech Eng, 2003, 192(1–2): 227–246
Ouyang G, Zhang X. Reliability-based topology optimization of structures using the level set method (in Chinese). Chin J Mech Eng, 2008, 44(10): 60–65
Rozvany G I N, Zhou M. The COC algorithm, part I: Cross-section optimization or sizing. Comput Methods Appl Mech Eng, 1991, 89(1–3): 281–308
Rozvany G I N, Zhou M. The COC algorithm, part II: Topological, geometrical and generalized shape optimization. Comput Methods Appl Mech Eng, 1991, 89(1–3): 309–336
Bruyneel M, Duysinx P, Fleury C. A family of MMA approximations for structural optimization. Struct Multidiscip Optim, 2002, 24(4): 263–276
Wang X, Rong J, Zhao Z, et al. Structure topological optimization design with displacement constraints based on the approximation of moving asymptotes (in Chinese). J Changsha Univ Sci Tech, 2009, 6(2): 33–38
Ye S, Chen S. An optimality criterion method for antenna structure design (in Chinese). J Northwest Telecom Eng Inst, 1982, 9(1): 11–28
Chen S. Some Modern Design Methods of Precise and Complex Structures (in Chinese). Beijing: Press of Beijing University of Aeronautics and Astronautics, 1992
Chen S. Analysis, Synthesis and Optimization of Engineering Structural Systems (in Chinese). Hongkong: China Science Culture Publishing House, 2008
Beckers M. Topology optimization using a dual method with discrete variables. Struct Optim, 1999, 17: 14–24
Jog C S. A dual algorithm for the topology optimization of non-linear elastic structures. Int J Numer Methods Eng, 2008, 77(4): 502–517
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Liu, X., Li, Z. & Chen, X. A new solution for topology optimization problems with multiple loads: The guide-weight method. Sci. China Technol. Sci. 54, 1505–1514 (2011). https://doi.org/10.1007/s11431-011-4334-z
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DOI: https://doi.org/10.1007/s11431-011-4334-z