基于ANSYS的电气柜体强度与模态分析

作者： 日期：2007-08-31/span> 浏览：4027 查看PDF文档

                                             基于ANSYS的电气柜体强度与模态分析
                                                     王 超，许 平，黄明高
                  （中南大学 轨道交通安全教育部重点实验室，湖南 长沙 410075）

摘 要：采用大型通用有限元软件ANSYS建立了某机车电气柜体及其过渡梁的有限元模型，根据有限元法对其进行了静强度分析，得到了整体结构的变形及应力分布。然后采用Block Lanczos法对该电气柜体及其过渡梁进行了模态分析，得到了其低阶固有频率及其相应的振型和振型动画，找出了结构振动薄弱部位，并对其进行了优化。这为结构优化设计以及深入的动力学分析和疲劳分析提供了依据。
关键词：电气柜；有限元法；静强度；模态分析；结构优化

                   Strength and modal analysis of electrical cabinet based on ANSYS
                                            WANG Chao, XV Ping, HUANG Minggao
(Key Laboratory for Track Traffic Safety of Ministry of Education, Central South University, Changsha 410075, China)

Abstract:A finite element model of locomotive electrical cabinet body and its transition beams was established with ANSYS finite element software. Static strength analysis for the model was carried out based on the finite element method, the deformation and stress distribution of the whole structure were obtained. Then the modal analysis for the electrical cabinet body and its transition beams was made via Block Lanczos method. The structures lower order nature frequencies, modes of vibration and animations of relevant modes of vibration were confirmed. Weakness of the structure was found out and optimization design was carried out. The results show that provide basis for the optimization design, dynamic and fatigue analysis for the structure.
Key words: electrical cabinet; finite element method (FEM); static strength; modal analysis; structure optimization

参考文献(Reference)：
［1］曹凤利,李国璋，傅建平.基于有限元的履带车辆变速箱体强度分析［J］.机械工程师,2006(7):108-110.
［2］HAN R P S, ZU J W Z. Modal analysis of rotating shaft a bodyfixed axis formulation approach［J］. Journal of Sound and Vibration,1992,156(1):1-16.
［3］梁尚明,罗 伟，徐俊光，等.摆动活齿减速器的有限元模态分析［J］.机械设计,2004,21(7):14-16.
［4］尚晓江,邱 峰，赵海峰，等.ANSYS结构有限元高级分析方法与范例应用［M］.北京：中国水利水电出版社,2005.
［5］张晓燕，季林红,王耀兵，等.微小卫星整星模块化结构的模态分析［J］.机械设计与制造,2003(2):67-68.