【正文】 要的。并且通過對 橋殼 在四種主要工況下 的 靜力分析和 模態(tài)分析，直觀 地 得到 了 驅(qū)動橋殼在各對應(yīng)工況的應(yīng)力分 布及變形情況 。 關(guān)鍵詞： 有限元法， UG， ANSYS Workbench， 驅(qū)動橋殼，靜力分析，模態(tài)分析 湖 北 汽 車 工 業(yè) 學(xué) 院 畢 業(yè) 論 文 III Abstract As the mainly carrying and passing ponents of the vehicle, the automobile drive axle housing supports the weight of vehicle, and transfer the weight to the wheel. Through the drive axle housing, the driving force, braking force and lateral force act on the wheel transfer to the suspension system, frame and carriage. This article studies based on light truck driver axle of QX1060, discusses in detail from the UG software parametric modeling, establish of ANSYS FEM model, and the boundary conditions imposed, etc. And through drive axle housing of the four main conditions of static analysis and modal analysis, it can access the stress distribution and deformation in the corresponding status of drive axle directly. Thus, under the premise of ensuring the strength of drive axle housing, stiffness and dynamic performance requirements, the analysis can raise feasible measures and remendations in drive axle housing design. Keywords： Finite element method， UG， ANSYS Workbench， Drive axle housing，Static analysis， Modal analysis 湖 北 汽 車 工 業(yè) 學(xué) 院 畢 業(yè) 論 文 IV 目錄 摘 要 .......................................................................................................................................... II Abstract ............................................................................................................................... III 1 緒論 ...................................................................................................................................... 1 課題來源及意義 ..................................................................................................... 1 國內(nèi)外研究現(xiàn)狀 ..................................................................................................... 1 ANSYS 軟件介紹 ...................................................................................................... 4 概述 .............................................................................................................. 5 ANSYS 的主要模塊及功能 .......................................................................... 5 ANSYS 的主要技術(shù)特點(diǎn) .............................................................................. 6 ANSYS Workbench 簡介 .............................................................................. 7 CAD/CAE 在汽車設(shè)計中的應(yīng)用 ............................................................................. 8 課題研究內(nèi)容 ......................................................................................................... 8 2 驅(qū)動橋殼的 CAD 建模 ...................................................................................................... 10 驅(qū)動橋殼的結(jié)構(gòu)特點(diǎn) ........................................................................................... 10 UG 軟件介紹及參數(shù)化建模思想 ......................................................................... 10 UG 軟件介紹 ............................................................................................... 10 UG 參數(shù)化建模思想和一般模塊介紹 ..................................................... 11 驅(qū)動橋殼的建模及簡化處理 .............................................................................. 14 驅(qū)動橋殼三維的建模 ............................................................................... 14 驅(qū)動橋殼的模型簡化處理 ....................................................................... 16 3 驅(qū)動橋殼靜力分析 .......................................................................................................... 18 靜力分析概述 ....................................................................................................... 18 驅(qū)動橋殼靜力分析典型工況 .............................................................................. 18 建立驅(qū)動橋 殼有限元模型 .................................................................................. 20 幾何模型的導(dǎo)入 ....................................................................................... 20 湖 北 汽 車 工 業(yè) 學(xué) 院 畢 業(yè) 論 文 V 生成橋殼有限元模型 ............................................................................... 21 驅(qū)動橋殼各工況靜力分析 .................................................................................. 23 沖擊載荷工況 ............................................................................................ 23 最大驅(qū)動力工況 ....................................................................................... 25 最大制動力工況 ....................................................................................... 28 最大側(cè)向力工況 ....................................................................................... 30 4 驅(qū)動橋殼的模態(tài)分析 ...................................................................................................... 34 模態(tài)分析理論 ....................................................................................................... 34 建立模態(tài)分析有限元模型 .................................................................................. 35 驅(qū)動橋殼模態(tài)分析 ............................................................................................... 36 自由模態(tài)分析 ............................................................................................ 37 約束模態(tài)分析 ............................................................................................ 41 模態(tài)分析總結(jié) ............................................................................................ 47 5 課題總結(jié)與展望 ............................................................................................................... 48 課題總結(jié) ................................................................................................................ 48 研究展望 ................................................................................................................ 49 參考文獻(xiàn) ......................................