本文選題：拉伸成形 + 彎曲開縫��； 參考：《浙江大學(xué)》2017年碩士論文

【摘要】：隨著我國航空航天、汽車制造、石油化工等大型工業(yè)的發(fā)展,高性能大尺寸復(fù)雜薄壁構(gòu)件的需求也日益增加。拉伸液壓機的性能直接關(guān)系到薄壁構(gòu)件的成形質(zhì)量,傳統(tǒng)的拉伸液壓機已經(jīng)無法滿足實際工業(yè)需求。因此,亟需設(shè)計開發(fā)出高性能的高檔拉伸液壓裝備。本文針對拉伸液壓機成形過程中的彎曲開縫、爬行抖動、反脹失效等問題,對高檔拉伸液壓機剛度性能、運動性能和成形性能等進行了深入的研究,提出了高檔拉伸液壓機性能強化設(shè)計方法,并應(yīng)用到合肥合鍛150MN雙動充液拉伸液壓機的設(shè)計開發(fā)中。論文主要內(nèi)容包括:第一章介紹了拉伸液壓機主機組成和整機性能,闡述了高檔拉伸液壓機的技術(shù)背景和本課題的研究意義。通過介紹目前高檔拉伸液壓機在成形過程中存在的彎曲開縫、爬行抖動、反脹失效的性能缺陷,分析了目前國內(nèi)外學(xué)者研究針對上述問題的研究現(xiàn)狀,提出了高檔拉伸液壓機性能強化設(shè)計方法,最后給出了本論文的研究內(nèi)容與組織框架。第二章提出了面向彎曲開縫的高檔拉伸液壓機組合機架剛度性能設(shè)計方法。研究了彎曲開縫機理,建立了高剛度的目標模型,提出基于粒子群算法的組合機架剛度性能多目標求解方法。最后以150MN拉伸液壓機為例,通過仿真對比驗證了所提方法的可行性。第三章提出了面向爬行抖動的高檔拉伸液壓機拉伸滑塊運動性能解耦方法。研究了液壓機滑塊低速爬行機理,建立了滑塊的單自由度摩擦模型,通過力學(xué)求解和數(shù)值分析,確定了影響滑塊爬行抖動的因素,提出了基于TRIZ理論的高檔拉伸液壓機導(dǎo)向裝置的解耦方法。最后以150MN拉伸液壓機為例,通過仿真對比驗證了所提方法的可行性。第四章提出了面向反脹失效的高檔拉伸液壓機充液拉深成形性能優(yōu)化方法。分析了薄板拉伸成形的過程,確定了影響成形質(zhì)量的工藝參數(shù),提出了基于敏感度分析的高檔拉伸液壓機工藝參數(shù)關(guān)聯(lián)分析方法,實現(xiàn)了高檔拉伸液壓機成形性能的提高。最后以150MN拉伸液壓機為例,通過仿真對比驗證了所提方法的可行性。第五章結(jié)合企業(yè)實際項目,開發(fā)了拉伸液壓機功能管理模塊,同時對本文所提出的理論方法進行了仿真模擬,驗證了本文所提方法的可行性與有效性。第六章對全文的研究內(nèi)容進行了總結(jié),并就下一步的研究內(nèi)容和方向進行了展望。
[Abstract]:With the development of aerospace, automobile manufacturing, petrochemical and other large-scale industries in China, the demand for high performance, large size and complex thin-walled components is increasing day by day. The properties of drawing hydraulic press are directly related to the forming quality of thin-walled components. The traditional drawing hydraulic press can no longer meet the actual industrial needs. Therefore, it is urgent to design and develop high-grade tensile hydraulic equipment with high performance. Aiming at the problems of bending slit, creeping jitter and anti-expansion failure in the forming process of the drawing hydraulic press, the stiffness, motion and formability of the high-grade drawing hydraulic press are studied deeply in this paper. The design method of high grade drawing hydraulic press was put forward, and it was applied to the design and development of 150MN double action hydraulic drawing press in Hefei. The main contents of this paper are as follows: in the first chapter, the composition of the main engine and the performance of the drawing hydraulic press are introduced, the technical background of the high grade drawing hydraulic press and the research significance of this subject are expounded. This paper introduces the performance defects of bending slit, creeping jitter and anti-expansion failure in the forming process of high-grade drawing hydraulic press, and analyzes the current research situation of domestic and foreign scholars in view of the above problems. The design method of high-grade drawing hydraulic press performance strengthening is put forward. Finally, the research content and organization frame of this paper are given. In the second chapter, the stiffness performance design method of high-grade drawing hydraulic press is presented. In this paper, the mechanism of bending slit is studied, and the target model of high stiffness is established, and a multi-objective method based on particle swarm optimization (PSO) is proposed to solve the stiffness performance of composite frame. Finally, taking 150MN drawing hydraulic press as an example, the feasibility of the proposed method is verified by simulation and comparison. In chapter 3, a method of decoupling the motion performance of the drawing slider for crawling jitter is proposed. In this paper, the mechanism of slider crawling at low speed is studied, and the single degree of freedom friction model of slider is established. By means of mechanical solution and numerical analysis, the factors affecting slider crawling jitter are determined. The decoupling method of high-grade drawing hydraulic press guide device based on TRIZ theory is presented. Finally, taking 150MN drawing hydraulic press as an example, the feasibility of the proposed method is verified by simulation and comparison. In chapter 4, the optimization method of liquid-filling forming property of high-grade drawing hydraulic press for reverse expansion failure is put forward. The process of sheet drawing forming is analyzed and the process parameters which affect the forming quality are determined. The correlation analysis method of process parameters of high grade drawing hydraulic press based on sensitivity analysis is put forward to improve the forming property of high grade drawing hydraulic press. Finally, taking 150MN drawing hydraulic press as an example, the feasibility of the proposed method is verified by simulation and comparison. In the fifth chapter, the function management module of the drawing hydraulic press is developed in combination with the actual project of the enterprise. At the same time, the simulation of the theory and method proposed in this paper is carried out to verify the feasibility and effectiveness of the method proposed in this paper. The sixth chapter summarizes the research content of the full text, and looks forward to the next research content and direction.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TG305

【參考文獻】

相關(guān)期刊論文 前10條

1 張彩麗;付宏;任工昌;楊帆;;公理設(shè)計中耦合問題的快速解耦方法研究[J];陜西科技大學(xué)學(xué)報(自然科學(xué)版);2016年04期

2 李建光;韓博;;基于TRIZ理論的高速機床導(dǎo)軌防護罩設(shè)計[J];科技創(chuàng)新與品牌;2016年07期

3 麻鵬達;李毅波;潘晴;;基于局部Lipschiz映射的模鍛壓機非線性摩擦自適應(yīng)補償[J];鍛壓技術(shù);2016年03期

4 要小鵬;殷國富;李光明;;數(shù)控機床進給軸綜合誤差解耦建模與補償研究[J];機械工程學(xué)報;2016年01期

5 黃強;翟江濤;;機床的直線運動誤差建模與敏感性分析[J];機床與液壓;2015年17期

6 劉立起;;基于響應(yīng)面法的液壓機橫梁立板厚度優(yōu)化[J];天津科技;2015年09期

7 張恒;詹成勝;劉祖源;馮佰威;;基于船舶阻力性能的船型主尺度參數(shù)敏感度分析[J];船舶工程;2015年06期

8 宋繼順;張建民;李森;;復(fù)合材料液壓機偏載工況下滑塊變形規(guī)律的研究[J];機械設(shè)計;2014年02期

9 王欽明;余心宏;馬凌微;;三梁四柱型液壓機有限元模態(tài)分析及結(jié)構(gòu)改進[J];重型機械;2014年01期

10 楊家旺;黃明輝;陸新江;鄧坎;;大型模鍛壓機極低速非線性摩擦建模與驗證[J];中南大學(xué)學(xué)報(自然科學(xué)版);2013年12期

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