基于APDL的门式起重机有限元分析及优化系统研究

发布时间：2018-03-25 10:24

本文选题：门式起重机　切入点：门架结构　出处：《武汉理工大学》2012年硕士论文

【摘要】：传统门式起重机设计存在设计效率低、结构性能“富余”等问题。将有限元法应用到门式起重机的设计中,可以大大提高设计效率、降低生产成本。本文以门式起重机门架结构为研究对象,在深入学习有限元理论和参数化技术的基础上,以ANSYS为工具,利用其参数化设计语言(APDL)进行二次开发,建立门式起重机门架结构的有限元分析及优化系统。该系统集门架结构的参数化设计、分析和优化功能于一体,并且将所有功能都封装为宏,能快速实现门架结构的参数化建模。论文的主要研究工作和研究成果包括以下几个方面： (1)基于ANSYS宏文件,制定ANSYS工具栏按钮,分析系统界面明了,且参数输入对话框皆有中文说明,降低了ANSYS软件使用门槛。 (2)基于ANSYS参数化设计语言APDL,建立了门式起重机门架结构的参数化有限元分析模型,模型的建立只需输入相关参数,其余由程序自动完成,这进一步降低了ANSYS软件使用门槛。 (3)分析门式起重机门架结构的受力,针对不同工况,对门式起重机门架结构进行静态特性分析和动态特性分析。 (4)以优化设计理论为基础,以门架结构相关参数为优化设计的变量,以门架结构的重量最轻为优化设计的目标,在满足强度、刚度及其它性能要求的基础上,对门架结构进行优化设计分析,并对优化结果进行检验,证明优化设计的可行性。 (5)本文将ANSYS二次开发技术应用于门式起重机门架结构的有限元分析及优化设计过程中,把有限元计算与参数化技术有机结合起来,使结构分析的自动化程度有了很大的提高,具有重要的实际意义。
[Abstract]:The traditional gantry crane design has some problems such as low design efficiency and redundant structural performance. Applying finite element method to the design of gantry crane can greatly improve the design efficiency. In this paper, the portal structure of gantry crane is taken as the research object. On the basis of studying the finite element theory and parameterization technology in depth, ANSYS is used as the tool, and its parameterized design language is used to carry out the secondary development. The finite element analysis and optimization system of gantry crane portal structure is established. The system integrates the parameterized design, analysis and optimization functions of portal structure, and encapsulates all functions into macros. The parameterized modeling of portal structure can be realized quickly. The main research work and research results include the following aspects:. 1) based on the ANSYS macro file, the ANSYS toolbar buttons are made, the interface of the analysis system is clear, and the parameter input dialog boxes are all described in Chinese, which reduces the threshold of using ANSYS software. 2) based on ANSYS parametric design language, the parameterized finite element analysis model of gantry crane portal structure is established. The establishment of the model only needs to input relevant parameters, and the rest is automatically completed by the program, which further reduces the threshold of ANSYS software use. The static and dynamic characteristics of gantry crane gantry structure are analyzed according to different working conditions. (4) based on the theory of optimum design, taking the relevant parameters of the portal structure as the variables of the optimization design, taking the minimum weight of the portal structure as the objective of the optimization design, on the basis of satisfying the requirements of strength, stiffness and other performance, The optimum design of the portal structure is analyzed, and the result of optimization is tested to prove the feasibility of the optimal design. In this paper, the ANSYS secondary development technology is applied to the finite element analysis and optimization design of portal structure of gantry crane, and the finite element calculation and parameterization technology are combined organically, so that the automation degree of structure analysis is greatly improved. It has important practical significance.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH213.5

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