2000KN單動(dòng)液壓機(jī)工作臺(tái)結(jié)構(gòu)分析及優(yōu)化設(shè)計(jì)（本科畢業(yè)論文設(shè)計(jì)）

摘    要

      液壓機(jī)是壓力加工的重要設(shè)備，已成為鍛造行業(yè)必不可少的設(shè)備之一。隨著新工藝及新技術(shù)的應(yīng)用。液壓機(jī)在金屬加工及非金屬成形方面的應(yīng)用越來(lái)越廣泛。
     論文在綜合了國(guó)內(nèi)外液壓機(jī)資料，詳細(xì)分析了2000KN液壓機(jī)工作臺(tái)結(jié)構(gòu)的強(qiáng)度和剛度的基礎(chǔ)上，對(duì)2000KN液壓機(jī)工作臺(tái)進(jìn)行了結(jié)構(gòu)優(yōu)化設(shè)計(jì)，得出了強(qiáng)度和剛度符合要求且耗材最少的理想結(jié)果。
       論文以ANSYS有限元分析軟件為工具，合理處理載荷和約束，建立了2000KN液壓機(jī)工作臺(tái)的有限元模型，并對(duì)其進(jìn)行了計(jì)算和分析。在分析結(jié)果的基礎(chǔ)上對(duì)工作臺(tái)進(jìn)行了多次結(jié)構(gòu)優(yōu)化，并從中選出了最佳的優(yōu)化方案。最終經(jīng)過(guò)結(jié)構(gòu)優(yōu)化的工作臺(tái)比未優(yōu)化重量減輕，節(jié)材明顯。
       從其運(yùn)用ANSYS進(jìn)行結(jié)構(gòu)分析的效果來(lái)看，用ANSYS軟件來(lái)對(duì)工程設(shè)備進(jìn)行結(jié)構(gòu)分析的確是工程設(shè)計(jì)中有效的方法之一。

關(guān)鍵詞：液壓機(jī)，有限元，ANSYS，結(jié)構(gòu)分析

ABSTRACT

    Hydraulic pressure is a major processing equipment, and has become one of the essential equipment of the forging industry. With the new process and new technology applications, the application of hydraulic pressure in the metal processing and non-metallic forming is more and more extensive.
   Papers in the Composite hydraulic machine at home and abroad, and detailed analysis of the 2000 KN hydraulic table , optimize the design of the  2000 KN hydraulic table , obtain a a desired results scheme  that strength and  rigidity  meet the requirements and need  material least.
   Papers uses ANSYS finite element analysis software as a tool for dealing with reasonable load and restraint, creats the finite element model of 2000 KN hydraulic pressure table, and its calculation and analysis. Analysis of the results in the table on the basis of a number of structural optimization, and from among the best optimization of the programme. At the end  the table that has been taken structural optimization lighten a lot of weight than the original table, saved a lot of material.
   From the results of  use ANSYS to structural analysis , use ANSYS software to analysis the engineering equipment for structural engineering is indeed effective in one of the ways.

Key words：Hydraulic Pressure，F(xiàn)inite Element Analysis，ANSYS , Structural Analysis 

目   錄
中文摘要 Ⅰ
ABSTRACT Ⅱ
1緒論 1
  1.1 液壓機(jī)設(shè)計(jì)方法發(fā)展概況 1
    1.1.1有限元分析方法 2
    1.1.2結(jié)構(gòu)優(yōu)化理論和應(yīng)用 3
  1.2  課題的研究現(xiàn)狀 3
  1.3  選題的目的和意義 5
  1.4  本課題的主要任務(wù) 6
2 2000KN液壓機(jī)工作臺(tái)的建模 7
  2.1 概述 7
  2.2  建模步驟 7
    2.2.1外模型的建立 7
    2.2.2內(nèi)模型的建立 8
    2.2.3工作臺(tái)模型的建立 12
  2.3  小結(jié) 14
3 模型的網(wǎng)格劃分及約束和載荷的施加 16
  3.1 網(wǎng)格劃分 16
 3.2 約束和載荷的施加 18
4 2000KN液壓機(jī)工作臺(tái)的有限元分析 21
4.1正載工況的有限元分析 22
4.2向右偏載工況的有限元分析 26
4.3向后偏載工況的有限元分析 27
4.4小結(jié) 29
5 2000KN液壓機(jī)工作臺(tái)結(jié)構(gòu)優(yōu)化設(shè)計(jì) 31
5.1概述 31
5.2 優(yōu)化及分析 31
5.3 小結(jié) 40
6 總結(jié) 41
  6.1 本課題的研究成果 41
6.2 結(jié)論及展望 42
致謝 44
參考文獻(xiàn) 45