钢制油罐半挂车的有限元分析和结构优化设计-机械工程专业论文.docxVIP

钢制油罐半挂车的结构优化设计和有限元分析 钢制油罐半挂车的结构优化设计和有限元分析 THE FINITE ELEMENT ANALYSIS AND THE STRUCTURE OPTIMIZATION DESIGN OF STEEL TANK SEMI-TRAILER ABSTRACT Tank semi-trailer is a special vehicle which is used to carry oil. With the increasing demand of industry for oil in transportation，aviation，etc，the tank semi-trailer plays an important role as an carrier in oil transportation, and the demand for large-scale tank semi-trailer is increasing. Along with internationalization of market competition，the design and manufacturing production with high level，low price，light quality will become a trend. However，there is unreasonable design in local structure of oil tank semi-trailer in actual use. Therfore，it is necessary to analyze structure strength，stiffness and design light weight style. First of all，a dynamic model was established by analyzing and simplifying structure of semi-trailer.Then ,the stress of whole structure and cloud figure of deformation as well as various order frequency modal were obtained by analyzing structure strength，stiffness and free modal of the semi-trailer under various environment. Secondly，structural topology optimization and size optimization design method was applied to optimized the structure of tank semi-trailer which is improved and perfected based on the optimization results. Finally，some important analysis data was obtained by analyzing structure strength，stiffiness and free vibration modal. These data provide theory basis for the design and manufacture of other style tank semi-trailer. KEY WORDS: tank semi-trailer, the finite element analysis, modal analysis, structures optimized design ii 原创性声明本人郑重声明 原创性声明 本人郑重声明：所呈交的学位论文，是本人在导师指导下，进行研究工作所取得的成 果。除文中已经注明引用的内容外，本学位论文不包含任何他人或集体已经发表的作品内 容，也不包含本人为获得其他学位而使用过的材料。对本论文所涉及的研究工作做出贡献 的其他个人或集体，的其他个人或集体，均已在文中以明确方式标明。均已在文中以明确方式标明。本学位论文原创性声明的法律责任由本本学位论文原创性声明的法律责任由本 人承担。 学位论文作者签名： 日期： 关于学位论文版权使用授权的说明 本人完全了解河北工业大学关于收集、保存、使用学位论文的以下规定：学校有权采 用影印、缩印、扫描、数字化或其它手段保存论文；学校有权提供本学位论文全文或者部 分内容的阅览服务；学校有权将学位论文的全部或部分内