【正文】 of ash bucket reduced to , saving material , optimizing the overall effect. In this paper, bag filter for the largescale structure of the design, calculation and optimization provides a reference for the establishment of its highly efficient design of highprecision analysis method of great significance. Keywords: ANSYS； Structure optimization； Finite element analysis； Parametric Modeling ； Bag filter； dust pot 目錄 III 目錄 摘要 ................................................................................................................................ I Abstract ......................................................................................................................... II 目錄 .............................................................................................................................. III 第一章 概述 ..................................................................................................................1 研究目的與意義 ...............................................................................................1 國內(nèi)外研究現(xiàn)狀及發(fā)展趨勢 ...........................................................................1 本課題研究內(nèi)容 ...............................................................................................3 本課題研究方案 ...............................................................................................3 研究目標(biāo)與主要特色 .......................................................................................3 第二章 袋式除塵器簡介 ..............................................................................................4 袋式除塵器簡介 ...............................................................................................4 袋式除塵器的過濾機(jī)理 ...................................................................................4 脈沖式袋式除塵器工作原理 ...........................................................................6 袋式除塵器分類 ...............................................................................................6 脈沖袋式除塵器本體鋼結(jié)構(gòu)組成 ...................................................................8 第三章 ANSYS 軟件與有限元思想簡介 ....................................................................9 軟件介紹 ..............................................................................................9 有限元法 .........................................................................................................10 有限元思想簡介 ...................................................................................10 有限元法求解步驟 ............................................................................... 11 參數(shù)化建模 ..................................................................................................... 11 ANSYS 的優(yōu)化設(shè)計(jì) .......................................................................................12 ANSYS 優(yōu)化設(shè)計(jì)思想 .........................................................................12 優(yōu)化過程 ...............................................................................................13 第四章 袋 式除塵器灰斗結(jié)構(gòu)分析 ............................................................................16 灰斗的結(jié)構(gòu)形式 .............................................................................................16 灰斗的殼體建模分析 .....................................................................................17 灰斗基本參數(shù) .................................................................................................17 灰斗殼體模型的基本設(shè)定（按順序） .........................................................17 定義單元格 ...........................................................................................17 材料屬性定義 .......................................................................................18 網(wǎng)格劃分 ...............................................................................................18 施加約束 ...............................................................................................19 施加灰斗載荷 .......................................................................................19 荷載計(jì)算方法 .......................................................................................19 灰斗殼體模型的建立與分析 .........................................................................21 模型一 ...................................................................................................21 第五章 灰斗結(jié)構(gòu)的改進(jìn) ............................................................................................24 模型二 .............................................................................................................24 模型三 .............................................................................................................25 第六章 灰斗結(jié)構(gòu)的優(yōu)化 ............................................................................................28 定義約束條件 .................................................................................................28 目錄 IV 定義設(shè)計(jì)變量 .................................................................................................28 優(yōu)化過程 .........................................................................................................29 優(yōu)化灰斗厚度 .......................................................................................29 優(yōu)化縱向角鋼尺寸 ...............................................................................31 優(yōu)化橫向角鋼 .......................................................................................37 再優(yōu)化 ...................................................................................................42 最終優(yōu)化 ...............................................................................................46 第七章 結(jié)論 ................................................................................................................48 參考文獻(xiàn) ......................................................................................................................49 致謝