新型1.5MW风电机组叶片模型的三维建模与强度分析毕业设计

学位论文原创性声明本人郑重声明：所呈交的论文是本人在导师的指导下独立进行研究所取得的研究成果。除了文中特别加以标注引用的内容外，本论文不包含任何其他个人或集体已经发表或撰写的成果作品。本人完全意识到本声明的法律后果由本人承担。（宋体小4号）作者签名：年月日学位论文版权使用授权书本学位论文作者完全了解学校有关保障、使用学位论文的规定，同意学校保留并向有关学位论文管理部门或机构送交论文的复印件和电子版，允许论文被查阅和借阅。本人授权省级优秀学士学位论文评选机构将本学位论文的全部或部分内容编入有关数据库进行检索，可以采用影印、缩印或扫描等复制手段保存和汇编本学位论文。本学位论文属于1、保密□，在_________年解密后适用本授权书。2、不保密□。（请在以上相应方框内打“√”）作者签名：年月日导师签名：年月日目录摘要...............................................................................................................................................................1前言...............................................................................................................................................................11.风力发电简介....................................................................................................................................21.1风力发电现状..............................................................................................................................21.2风力发电趋势..............................................................................................................................41.3风力发电机叶片现状.................................................................................................................41.4研究内容........................................................................................................................................71.5常用翼型介绍.............................................................................................................................72.叶片建模...............................................................................................................................................82.1叶片建模方法比较.....................................................................................................................82.2翼型选择........................................................................................................................................92.3叶片各截面空间实际坐标的求解........................................................................................112.4叶片立体图的pro/e建模实现.............................................................................................123.叶片有限元分析.............................................................................................................................153.1翼型主要设计参数...................................................................................................................153.2叶片载荷计算............................................................................................................................173.3模型导入ansys进行分析......................................................................................................194.结果分析及优化方向...................................................................................................................254.1工况结果分析............................................................................................................................254.2优化方向......................................................................................................................................315.结论与展望........................................................................................................................................335.1结论...............................................................................................................................................335.2展望...............................................................................................................................................33致谢.............................................................................................................................................................34参考文献..................................................................................................................................................35共37页第1页新型1.5MW风电机组叶片模型的三维建模与强度分析摘要：随着环境问题的日益突出，能源供应的渐趋紧张，对可再生能源的开发利用，尤其是对风能的开发利用己受到世界各国的高度重视;本文论述了风力发电的优势及风力发电产业在中国的发展及现状，并结合风机叶片的结构和运行工况进行了以下方面的探讨。结合现有几种风机叶片设计模型，采用了NACA4412翼型，基于叶片翼型计算数据，进行了叶片截面离散点坐标变换，并用三维造型软件Pro/e对叶片进行了三维建模，为后续动力学分析奠定了基础。关键词：风机叶片；翼型；强度，Pro/e；Abstract:Astheenvironmentproblembecomingincreasinglyseriously,andenergysupplymoretense,countriesallovertheworldhaveputmoreemphasisonexploitationofrenewableenergy，especiallywindenergy.ThispaperfirstdiscussestheadvantagesofthewindpowergenerationandthedevelopmentofwindpowergenerationindustryinChina,thenthefollowinghavebeenstudiedprofoundlycombinedwiththebladestructureandworkingcondition.Firstlywiththeexistingtypesoffanbladedesignmodel,usingaNACA4412airfoil，withthehelpof3-Dmodelingsoftwareandcoordinatetransformation,athree-dimensionalmodelofbladewasbuiltupthroughPro/e,basedonthecoordinatesofbladesections.Thislaidafoundationforfartherdynamicanalysis.SecondlybyusingtheANSYSfiniteelementanalysissoftwareforstrengthanalysisofthefanbladestogetthestress,straincloudpicturesprovideatheoreticalbasisforoptimizationdesign.前言能源和环境是当今人类社会生存和发展所要解决的紧迫问题。常规能源以煤、石油、天然气为主，它不仅资源有限，而且造成了严重的大气污染。随着人口的增长和经济的发展，能源供需矛盾也日益突出。因此