Abstract
The use of nonlinear mechanical analysis in the optimization design process can achieve the precise numerical design of complex truss structures, which is a research hotspot and challenge in the field of structure optimization. To the complex truss structure, the new coordinated optimization method (COM) of customized non-uniform discrete variables (CV) coupling nonlinear mechanical analysis (CV-COM) is presented here. First, the variable coordination condition is embedded in the discrete variable direct search method by considering the coordination relationship between the parameters. Then, a complete CV-COM for engineering practice is formed, which is combined with the nonlinear finite element to provide implicit constraints for optimization. Finally, the truss structure was optimized through 14 design variables. The results show that optimized boom makes full use of the bearing capacity of the material and the optimization method of complex truss for engineering and the new method is effective.
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Acknowledgements
This work was supported by the 2020 Shanxi Province Graduate Student Outstanding Innovation Project, China [2020SY433], Shanxi provincial Key Research and Development Project, China [201903D121067], the Fund for Shanxi ‘1331 Project’ Key Subjects Construction [1331KSC] and the Natural Science Foundation of Shanxi Province, China [201701D121072]. The notated * is corresponding author.
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Qin, Yx., Zhang, Zq., Gu, Jp. et al. Customized Non-uniform Discrete Variables Coordinated Optimization Coupling Nonlinear Mechanical Analysis on Complex Truss Structure. Iran J Sci Technol Trans Mech Eng 46, 617–631 (2022). https://doi.org/10.1007/s40997-021-00469-7
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DOI: https://doi.org/10.1007/s40997-021-00469-7