自动导引车骨架结构优化设计

摘要/Abstract

摘要：

针对目前自动导引车自重系数较大的问题,以等强度、轻量化为研究目标,提出了一种适用于自动导引车骨架结构的优化设计方法。在对车身骨架结构进行力学分析的基础上,利用数学规划得出载荷分配与车轮位置的关系,得到车身骨架拓扑优化问题的约束条件,基于变密度法与优化准则法推导并建立了一种适用于自动导引车骨架结构的多准则优化模型,利用优化软件进行求解。最后,利用有限元软件对建立的优化模型进行仿真分析。仿真结果表明,所提方法用于自动导引车车身骨架优化是可行的。

关键词: 自动导引车, 结构优化, 数学规划, 拓扑

Abstract:

With the objective of same intensity and lighter weight, an optimization design method was proposed to reduce self weight coefficient of AGV. On the basis of mechanics analysis on AGV frame structure, load position and wheel position were worked out with mathematical programming, which were important constraint conditions for AGV frame structure optimization. A kind of multi-criteria formulation was proposed for AGV frame structure based on variable density method and optimality criteria and calculated by finite element software. A 3D optimization model was constructed and analyzed. The results show that the optimization method is effective and reasonable.

Key words: automated guided vehicle(AGV), structure optimization, mathematical programming, topology

中图分类号:

TP23

吴斌, 钱晓明, 武星, 沈科. 自动导引车骨架结构优化设计[J]. 中国机械工程, 2014, 25(19): 2653-2657,2664.

Wu Bin, Qian Xiaoming, Wu Xing, Shen Ke. Optimization Design on AGV Frame Structure[J]. China Mechanical Engineering, 2014, 25(19): 2653-2657,2664.

参考文献

[1]Eschenauer H A, Olhoff N. Topology Optimization of Continuum Structures: a Review[J]. Applied Mechanics Review, 2001, 54(4):332-381.
[2]Bendsoe M P, Sigmund O. Material Interpolation Schemes in Topology Optimization[J]. Archive of Applied Mechanics, 1999, 69(9/10):635-654.
[3]Rozvany G I N, Kirsch U, Bendsoe M P, et al. Layout Optimization of Structures[J]. Applied Mechanics Reciews, 1995, 48(2):41-119.
[4]Sethian J A, Wiegmann A. Structural Boundary Design Via Level Set and Immersed Interface Methods[J]. Journal of Computational Physics, 2000, 163(2):489-528.
[5]Zhou M, Rozuany G I N. The COC Algorithm, Part Ⅱ:Topological, Geometry and Generalized Shape Optimization[J]. Computer Methods in Applied Mechanics and Engineering, 1991, 89:197-224.
[6]罗震，蒙永立，郭文德，等. 分布式柔性机构拓扑优化设计的理论和算法[J]. 机械工程学报, 2006, 42（10）：27-46.
Luo Zhen, Meng Yongli, Guo Wende, et al. Theoretical and Algorithmic on Topology Optimization Design of Distributed Compliant Mechanisms[J]. Chinese Journal of Mechanical Engineering, 2006, 42(10):27-46.
[7]Schmit L A.Structural Design by Systematic Syntheris[C]//Proc. 2nd conf. Electronic Comp. New York, 1960: 105-122.
[8]Midha A, Howell L L, Norton T W. Limit Position of Compliant Mechanisms Using Pseudo-rigid-body Model Concept[J]. Mechanism and Machine Theory, 2000, 35(1):99-115.
[9]邓江华，刘献栋，冯国胜. 基于神经网络和遗传算法的车身骨架结构优化设计[J].农业机械学报，2007，38(6):26-29.
Deng Jianghua, Liu Xiandong, Feng Guosheng. Optimal Design of Bus Frame Structure on the Basis of ANN and GE[J]. Transactions of the Chinese Society for Agricultural Machinery, 2007, 38(6):26-29.
[10]Wang Yu, Luo Zhen. Design of Compliant Mechanisms of Distributed Compliance Using a Level-set Based Topology Optimization Method[J]. Applied Mechanics and Materials, 2012,110/116:2319-2323.
[11]刘鸿文. 材料力学[M]. 北京：高等教育出版社，2004.
[12]Rietz A. Sufficiency of a Finite Exponent in SIMP(Power Law) Method[J].Structural and Multidiscipline Optimization, 2001, 21(2):159-163.
[13]Bendsoe M P, Kikuchi N. Generating Optimal Topologies in Structural Design Using a Homogenization Method[J]. Computer Methods in Applied Mechanics and Engineering, 1988, 71:197-224.
[14]Kapil K, Andres T. Hybrid Cellular Automaton: a Novel Framework for Non-linear Topology Optimization[C]//19th Analysis & Computation Specialty Conference.Orlando, 2010.
[15]苟鹏，崔维成. 考虑依赖于结构形状的载荷的连续体结构拓扑优化[J]. 船舶力学，2006，10（1）：62-70.
Gou Peng, Cui Weicheng. Topological Optimization of Continuum Structures with Shape-dependent Loading[J]. Journal of Ship Mechanics, 2006, 10(1):62-70.
[16]Elhault T,Labbe T,Dehez B. Optimal Preliminary Design of Superconducting Bending Magnetswith Active Shielding Using Topology Optimization Method[J]. IEEE Transactions on Applied Superconductivity, 2012, 22(3): 4904305.
[17]Takezawa A, Kitamura M.Topology Optimization of Compliant Circular Path Mechanisms Based on an Aggregated Linear System and Singular Value Decomposition[J]. International Journal for Numerical Methods in Engineering, 2012, 89:706-725.
[18]陈卫东，蔡萌林，于诗源. 工程优化方法[M]. 哈尔滨：哈尔滨工程大学出版社，2006.