变速箱齿轮传动优化及其装配仿真

发布时间：2018-04-26 08:09

本文选题：变速箱 + 改进复合型优化方法　；参考：《延边大学》2011年硕士论文

【摘要】：计算机技术的持续快速发展,使机械设计更加简捷、高效,借助计算机技术,机械设计人员能出色地完成机械设计任务。在科学技术就是第一生产力的时代,所有企业和国家都加大了对先进设计技术的重视程度,在不停地追求自主创新,并极力缩短新产品开发设计周期,这是企业在激烈的市场竞争中获取优势的关键性因素,也是一个国家强大的主要推动力。本文利用先进的优化设计技术,建立以变速箱体积最小为优化目标的数学模型,确定每个变量之间的数学关系和需要满足的边界尺寸、性能要求等约束条件,再利用复合型方法进行最优值求解,以Visual Basic 2005软件为优化平台,通过编写优化程序求变速箱的最小体积,得出最小体积下设计变量的最优值。为了直观地显示变速箱三维图形,本文利用Pro/E对变速箱进行装配仿真,充分利用Pro/E的参数化造型功能,对变速箱内的零件参数化,达到通过变换零件参数值快捷地创建一系列结构特征相似的变速箱零件的目的。本文将Visual Basic2005的优化参数值和Pro/E仿真数据相结合,利用了PTC公司提供的VB API函数,采用异步开发模式,通过Visual Basic开发Pro/E,在Pro/E软件菜单界面中新增自定义菜单,新增特定功能,从而简化仿真过程,缩短装配时间。本文借助Visual Basic 2005和Pro/E软件,研究以下几个方面的内容： 1.分析机械优化设计领域及仿真方向的学术研究现状和发展水平,确定本文研究方案和技术路线。 2.建立二级斜齿圆柱齿轮减速器的设计参数及减速器优化模型,确定优化设计的独立变量、约束条件和目标函数,以减速器体积最小为优化目标,制定优化搜索方案。 3.利用Visual Basic2005设计人机界面,编写优化程序,将优化过程的数学模型转化为程序语言,在程序中寻求简单的循环方案、精确的收敛算法、合理的运行提示、实用的用户界面。 4.通过Pro/E软件画出具有关系和局部参数的减速器零件三维基本模型,然后进行装配仿真。 5.利用VB APT函数编制程序对Pro/E进行二次开发,在Pro/E软件菜单中新添具有能快速改变减速器零件参数和装配约束的菜单,将仿真装配需要使用的操作步骤通过利用菜单的形式简化。
[Abstract]:With the continuous and rapid development of computer technology, mechanical design is more simple and efficient. With the help of computer technology, mechanical designers can accomplish the task of mechanical design excellently. In the era when science and technology are the first productive forces, all enterprises and countries have increased their emphasis on advanced design technology, constantly pursuing independent innovation, and making great efforts to shorten the development and design cycle of new products. This is the key factor for enterprises to gain advantages in the fierce market competition, and is also the main driving force of a country. In this paper, using the advanced optimization design technology, a mathematical model with the minimum volume of the gearbox as the optimization objective is established, and the mathematical relations between each variable and the boundary size, performance requirements and other constraints to be satisfied are determined. The optimal value of the gearbox is solved by using the compound method, and the optimum value of the design variable is obtained by programming the optimization program on the platform of Visual Basic 2005 software and calculating the minimum volume of the gearbox. In order to display the three-dimensional graphics of the gearbox directly, this paper uses Pro/E to carry on the assembly simulation to the gearbox, makes full use of the parameterized modeling function of Pro/E, and parameterizes the parts in the gearbox. A series of gearbox parts with similar structural characteristics can be created quickly by changing the parameter values of the parts. In this paper, the optimized parameter value of Visual Basic2005 is combined with Pro/E simulation data, using VB API function provided by PTC Company, adopting asynchronous development mode, developing Pror / E through Visual Basic, adding custom menu and special function in Pro/E software menu interface. Thus, the simulation process is simplified and the assembly time is shortened. With the help of Visual Basic 2005 and Pro/E software, this paper studies the following aspects: 1. The present situation and development level of the academic research in the field of mechanical optimization design and the direction of simulation are analyzed, and the research scheme and technical route of this paper are determined. 2. The design parameters and optimization model of the secondary helical cylindrical gear reducer are established, and the independent variables, constraints and objective functions of the optimal design are determined. The optimal search scheme is formulated with the minimum volume of the reducer as the optimization objective. 3. Visual Basic2005 is used to design man-machine interface and program optimization. The mathematical model of optimization process is transformed into program language. In the program, simple cycle scheme, accurate convergence algorithm, reasonable operation hint and practical user interface are sought. 4. The 3D basic model of reducer parts with relation and local parameters is drawn by Pro/E software, and then assembly simulation is carried out. 5. The second development of Pro/E is carried out by using VB APT function programming program. The menu which can quickly change the parameters and assembly constraints of reducer parts is added to the menu of Pro/E software, and the operation steps needed for simulation assembly are simplified by using menu form.
【学位授予单位】：延边大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH132.41

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