功能梯度结构热机耦合问题参数化建模及系统反求技术研究

项目名称： 功能梯度结构热机耦合问题参数化建模及系统反求技术研究

项目编号： No.11302159

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 数理科学和化学

项目作者： 田建辉

作者单位： 西安工业大学

项目金额： 27万元

中文摘要： 功能梯度结构热机耦合问题一直是学者们研究的重点，其中参数化建模和系统反求技术是热机耦合问题成功解决和深入研究的课题之一，而参数化建模对正确进行材料识别提出了更高要求。本项目基于条单元法对功能梯度结构热机耦合问题参数化建模展开研究，拟系统分析功能梯度结构热机耦合问题的材料识别过程，参数化建模步骤和参数反求技术，针对功能梯度结构热机耦合问题，提出基于不同热边值条件和热初始条件下，采用快速精确计算方法求解的条单元法理论体系，形成功能梯度结构热机耦合系统参数化建模方法，形成系统化参数反求技术体系，并应用于工程实际。主要研究内容包括：参数化建模过程中如何形成正确的材料识别方法，功能梯度结构热机耦合参数化建模的完整理论体系，条单元法解决功能梯度结构热机耦合问题的理论方法，热机耦合问题系统参数化反求技术。

中文关键词： 功能梯度材料；参数化模型；位移响应；热传导；体积分数

英文摘要： Thermo-mechanical coupling problem of the functionally graded structure has always been the focus of the scholars study, the parametric modeling and system reverse technology is one of the topics of further research for solving thermo-mechanical coupling problem, the higher requirements for material identification is proposed for the parametric modeling. This project based on the strip element method study the parametric modeling of thermo-mechanical coupling problem, analysis the thermo-mechanical coupling problem material identification process of the functionally graded structure, the steps of the parametric modeling and parametric reverse technology. In view of the functionally graded structure of thermo-mechanical coupling problem, this project proposed the theory system of the strip element method based on the different initial conditions and boundary value conditions using the quickly and accurately calculating method. The structural thermo-mechanical coupling method of the functionally graded parametric modeling and the systematic parametric reverse technology is formed, and applied to practical engineering. Main research content includes: how to form proper material identification method for the parametric modeling process, the complete theory system of the functionally graded structure for thermo-mech

英文关键词： functionally graded material；Parameterized model；Displacement response；Heat Conduction；Volume fraction