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Dynamic-Static Optimization Design with Uncertain Parameters for Lift Arm of Parking Robot
Technical Paper
2020-01-0511
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
There are a large number of uncertainties in engineering design, and the accumulated uncertainties will enlarge the overall failure probability of the structure system. Therefore, structural design considering uncertainties has good guiding significance for improving the reliability of engineering structures. To address this issue, the dynamic-static structural topology optimization is established and reliability-based topology optimization with decoupling format is conducted in this study. The design point which satisfying the constraint of the target reliability indicator is obtained according to the reliability indicators of the first-order reliability method, and the uncertain design variables are modified into a deterministic variable according to the sensitivity information. What's more, the reliability-based topology optimization is performed by dividing the problem into two independent sub-problems of reliability analysis and equivalent deterministic topology optimization, and the feasibility of the reliability-based optimization method is verified with the lift arm of parking robot. To meet the dynamic-static performances and lightweight requirements of the lift arm of parking robot, the multi-objective topology optimization model of the lift arm is established by the combined compliance method. The results show that compared with deterministic topology optimization, reliability-based topology optimization with decoupling format can obtain a higher reliable optimization configuration, and meet the design requirements on high reliability and safety. This study offers a feasible route for dynamic and static multi-objective optimization of lift arm considering uncertain factors.
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Xu, X., Chen, X., Liu, Z., Xu, Y. et al., "Dynamic-Static Optimization Design with Uncertain Parameters for Lift Arm of Parking Robot," SAE Technical Paper 2020-01-0511, 2020, https://doi.org/10.4271/2020-01-0511.Data Sets - Support Documents
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References
- Liu , J. and Wen , G. Continuum Topology Optimization Considering Uncertainties in Load Locations Based on the Cloud Model Engineering Optimization 1 20 2017 10.1080/0305215X.2017.1361417
- Gao , Y. , Xu , Y. , Wu , C. , and Fang , J. Topology Optimization of Metal and Carbon Fiber Reinforced Plastic (CFRP) Structures under Loading Uncertainties SAE Technical Paper 2019-01-0709 2019 https://doi.org/10.4271/2019-01-0709
- Zhao , Q. , Chen , X. , Ma , Z. et al. Reliability-Based Topology Optimization Using Stochastic Response Surface Method with Sparse Grid Design Mathematical Problems in Engineering 2015 10.1155/2015/487686
- Du , X. and Chen , W. Sequential Optimization and Reliability Assessment Method for Efficient Probabilistic Design Journal of Mechanical Design 126 2 871 880 2003 10.1115/DETC2002/DAC-34127
- Royset , J. and Polak , E. Reliability-Based Optimal Design Using Sample Average Approximations Probabilistic Engineering Mechanics 19 4 331 343 2004 10.1016/j.probengmech.2004.03.001
- Youn , B. and Choi , K. A New Response Surface Methodology for Reliability-Based Design Optimization Computers & Structures 82 2-3 241 256 2004 10.1016/j.compstruc.2003.09.002
- Zhuang , X. and Pan , R. A Sequential Sampling Strategy to Improve Reliability-Based Design Optimization with Implicit Constraint Functions Journal of Mechanical Design 2012 10.1115/1.4005597
- Huang , Z. , Jiang , C. , Zhou , Y. et al. Reliability-Based Design Optimization for Problems with Interval Distribution Parameters Structural and Multidisciplinary Optimization 55 2 513 528 2017 10.1007/s00158-016-1505-3
- Yang , R. and Gu , L. Experience with Approximate Reliability-Based Optimization Methods Structural and Multidisciplinary Optimization 26 1-2 152 159 2004 10.1007/s00158-003-0319-2
- Kharmanda , G. , Olhoff , N. , Mohamed , A. et al. Reliability-Based Topology Optimization Structural and Multidisciplinary Optimization 26 5 295 307 2004 10.1007/s00158-003-0322-7
- Bobby , S. , Suksuwan , A. , Spence , S. et al. Reliability-Based Topology Optimization of Uncertain Building Systems Subject to Stochastic Excitation Structural Safety 66 1 16 2017 10.1016/j.strusafe.2017.01.005
- Maute , K. and Frangopol , D. Reliability-Based Design of MEMS Mechanisms by Topology Optimization Computers & Structures 81 8-11 813 824 2003 10.1016/s0045-7949(03)00008-7
- Silva , M. , Tortorelli , D. , Norato , J. et al. Component and System Reliability-Based Topology Optimization Using a Single-Loop Method Structural and Multidisciplinary Optimization 41 1 87 106 2010 10.1007/s00158-009-0401-5
- Zhang , Y. , Xu , X. , Sun , G. et al. Nondeterministic Optimization of Tapered Sandwich Column for Crashworthiness Thin-walled Structures 122 193 207 2018 10.1016/j.tws.2017.09.028
- Cestino , E. , Frulla , G. , Duella , R. et al. Application of Structural Topology Optimization to Couple Thin-Walled Stiffened Box-Beams SAE Technical Paper 2017-01-2059 2017 https://doi.org/10.4271/2017-01-2059
- Hongwei , Z. , Xiaokai , C. , and Yi , L. Topology Optimization of Hybrid Electric Vehicle Frame Using Multi-Loading Cases Optimization SAE Technical Paper 2008-01-1734 2008 https://doi.org/10.4271/2008-01-1734
- Nguyen , T.H. , Song , J. , and Paulino , G.H. Single-Loop System Reliability-Based Topology Optimization Considering Statistical Dependence between Limit-States Structural & Multidisciplinary Optimization 44 5 593 611 2011 10.1007/s00158-011-0669-0