基于一种改进遗传算法的液压连接块设计
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摘要
以薄壁结构厚度最大为优化目标,以流道及安装孔结构之间互不干涉且满足机械加工工艺要求为约束条件,建立了液压连接块孔道布置参数优化设计的数学模型。该模型属于约束非线性规划问题,采用一种新的惩罚函数处理约束条件,结合遗传算法,在MATLAB中编程对其进行求解,可得到较理想的液压连接块孔道布置方案。
The optimization of the maximum thickness of thin-walled structure must ensure that the flow path and mounting hole do not interfere with each other and the machining process requirements be satisfied. The paper establishes the mathematical model for optimization of orifice layout parameters of hydraulic connection block. The model describes a problem of constrained nonlinear programming, and a new penalty function is used to deal with the constraints in the paper. Combining with the genetic algorithm, the program is done in MATLAB to solve it. A feasible layout scheme of hydraulic connection block can be obtained.
The optimization of the maximum thickness of thin-walled structure must ensure that the flow path and mounting hole do not interfere with each other and the machining process requirements be satisfied. The paper establishes the mathematical model for optimization of orifice layout parameters of hydraulic connection block. The model describes a problem of constrained nonlinear programming, and a new penalty function is used to deal with the constraints in the paper. Combining with the genetic algorithm, the program is done in MATLAB to solve it. A feasible layout scheme of hydraulic connection block can be obtained.
引文
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[3]MICHALEWICZ Z.Genetic algorithm+Data Structures=Evolution Programs[M].Spring-Verlag,Heidelberg,1996.
[4]玄光男,程润伟.遗传算法与工程设计[M].北京:科学出版社,2000.
[5]林丹,李敏强,寇纪淞.基于遗传算法求解优化问题的一种算法[J].软件学报,2001,12(4):628-632.
[6]倪金林.遗传算法求解约束非线性规划及MATLAB实现[J].大学数学,2005,21(1):91-95.
[7]韦凌云,柴跃廷,赵玫.不等式约束的非线性规划混合遗传算法[J].计算机工程与应用,2006(22):46-49,65.
[8]周永华,毛宗源.求解约束优化问题的分组比较遗传算法[J].华南理工大学学报(自然科学版),2003,31(2):38-43.
[9]LEE K Y,HAN S N,ROH M I.An Improved Genetic Algorithm for Facility Layout Problem Shaving Inner Structure Walls and Passages[J].Computers and Operations Reach,2003,30(1):117-138.
[2]周明,孙树栋.遗传算法原理及应用[M].北京:国防工业出版社,2000.
[3]MICHALEWICZ Z.Genetic algorithm+Data Structures=Evolution Programs[M].Spring-Verlag,Heidelberg,1996.
[4]玄光男,程润伟.遗传算法与工程设计[M].北京:科学出版社,2000.
[5]林丹,李敏强,寇纪淞.基于遗传算法求解优化问题的一种算法[J].软件学报,2001,12(4):628-632.
[6]倪金林.遗传算法求解约束非线性规划及MATLAB实现[J].大学数学,2005,21(1):91-95.
[7]韦凌云,柴跃廷,赵玫.不等式约束的非线性规划混合遗传算法[J].计算机工程与应用,2006(22):46-49,65.
[8]周永华,毛宗源.求解约束优化问题的分组比较遗传算法[J].华南理工大学学报(自然科学版),2003,31(2):38-43.
[9]LEE K Y,HAN S N,ROH M I.An Improved Genetic Algorithm for Facility Layout Problem Shaving Inner Structure Walls and Passages[J].Computers and Operations Reach,2003,30(1):117-138.