网络环境下桥式起重机参数化CAE技术研究

发布时间：2018-03-21 10:26

本文选题：桥式起重机　切入点：Femap二次开发　出处：《中北大学》2012年硕士论文　论文类型：学位论文

【摘要】：随着国民经济的飞速发展，桥式起重机的市场需求逐年上涨，而企业需求呈现出多样化、特殊化，短周期、高效率、高可靠性的趋势，参数化CAE技术作为能实现产品快速设计验证与可靠性分析的新兴技术成为了众多学者关注的热点。论文以75t-125t桥式起重机为研究对象，在多用户机、双服务器、多工作站的网络环境下，以Solid Edge ST3与Femap V10.0为开发平台，分别从桥式起重机CAE模型建立方法与参数化CAE分析方法两方面，对桥式起重机的参数化CAE分析技术进行了深入研究。桥式起重机CAE模型建立方法：在论述参数化CAE建模技术理论的基础上，将CAE模型的组成划分为几何形状特征与有限元特征，利用Solid Edge建立CAE模型的几何形状特征，其中通过面分割解决了载荷施加位置的参数化驱动与程序化自动识别单元编号的技术难题。利用VB对Femap V10.0进行二次开发，研究CAE模型有限元特征的建立方法，以及离散化CAE分析模型的方法。建立了能同时兼容CAD设计与CAE分析的CAD/CAE混合模型库。桥式起重机参数化CAE分析方法：在桥式起重机模块划分和设计计算、分析知识程序化的基础上，提出与研究了Femap平台下的桥式起重机参数化CAE分析方法。利用VB对Solid Edge进行二次开发，，进行模型的简化与CAE模型几何形状特征模板的参数驱动，生成所需的几何形状特征模型。利用VB调用Femap的相关接口函数，将CAE分析前处理、分析计算、后处理的方法与过程参数化、标准化、程序化，最终实现了桥式起重机的参数化CAE分析。通过上述理论与方法的研究，建立了Femap平台下的CAE分析桥式起重机的参数化CAE分析系统，根据系统各模块的特性，将其分别安装在用户机、服务器、工作站中，使产品设计资源与计算机资源得到合理利用。该系统在某单位的75t-125t桥式起重机CAE分析过程中取得了良好效果，提高了CAE分析效率与质量，缩短了产品开发周期。
[Abstract]:With the rapid development of national economy, the market demand of bridge crane increases year by year, and the demand of enterprise is diversified, special, short period, high efficiency and high reliability. Parameterized CAE technology, as a new technology which can realize product rapid design verification and reliability analysis, has become a hot topic for many scholars. This paper takes 75t-125t bridge crane as the research object, under the network environment of multi-user computer, double server and multi-workstation, takes Solid Edge ST3 and Femap V10.0 as the development platform. In this paper, the parameterized CAE analysis technology of bridge crane is studied from two aspects: the method of establishing the CAE model of bridge crane and the method of parametric CAE analysis. The method of establishing CAE model of bridge crane: based on the theory of parameterized CAE modeling technology, the composition of CAE model is divided into geometric shape feature and finite element feature, and the geometric shape feature of CAE model is established by Solid Edge. Among them, the technical problem of parameterized driving and programmed automatic identification unit number of load applied position is solved by surface segmentation. The second development of Femap V10.0 is carried out by using VB, and the method of establishing the finite element feature of CAE model is studied. A hybrid CAD/CAE model library which can be compatible with both CAD design and CAE analysis is established. The parameterized CAE analysis method of bridge crane: on the basis of module partition and design calculation of bridge crane and analysis of knowledge programming, The parameterized CAE analysis method of bridge crane based on Femap platform is proposed and studied. The second development of Solid Edge is carried out by using VB, and the model is simplified and the parameter driving of geometric shape feature template of CAE model is realized. Using VB to call the relevant interface function of Femap, the methods of CAE analysis pre-processing, analysis and calculation, post-processing are parameterized, standardized and programmed. Finally, the parametric CAE analysis of bridge crane is realized. Through the research of the above theories and methods, the parametric CAE analysis system of CAE analysis bridge crane based on Femap platform is established. According to the characteristics of each module of the system, the system is installed in the user computer, server and workstation respectively. The product design resources and computer resources can be used reasonably. The system has achieved good results in the CAE analysis process of 75t-125t bridge crane in a certain unit, improved the efficiency and quality of CAE analysis, and shortened the product development cycle.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH215;TP391.72

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