轎車(chē)覆蓋件的成形分析和數(shù)值模擬
[Abstract]:With the development of world economy, automobile industry has been regarded as the pillar industry of national economy by some developed countries. With the development of economic globalization and the integration of the world economic market, the competition among automobile enterprises has been stimulated. How to improve the quality of product parts and shorten the cycle of production and manufacture has become the key to win the competition. Through a lot of research and practice, it has been proved that the application of CAE technology can greatly reduce the number of mould test, shorten the manufacturing cycle and reduce the workload of workers. The cost of production has been reduced. At the same time, the application of CAE technology can predict the defects of stamping parts in advance, help designers to optimize the stamping process and get higher quality parts. The stamping process is a complex deformation process with large deflection and large displacement. There are many factors that affect the forming of parts. The traditional trial and error method is very blind and inefficient. In order to obtain the best combination of process parameters, It is necessary to study the stamping process more deeply. This paper first introduces the research progress of finite element simulation analysis of car panel and the basic theory of stamping forming finite element. Then taking the rear door inner plate of a vehicle as an example, the process design of drawing stamping forming is carried out first, the three-dimensional model of drawing die is established by using UG software, and then the forming process is simulated by DYNAFORM simulation software. Secondly, the orthogonal test was designed, with the blank holder force, friction coefficient, stamping speed and die clearance as the test factors, the maximum thinning rate and the maximum thickening rate as the evaluation index, and the order of influence of each factor on the evaluation index was obtained through the analysis. And the process parameter scheme after the evaluation index is optimized; Then, on the basis of orthogonal test, the drawing process parameters of the internal plate of the back are optimized by using the comprehensive weighted scoring method and the gray correlation degree method, and then the results obtained by the three optimization methods are compared. It can be found that the parts of the forming scheme with gray correlation optimization are the most fully formed and the forming quality is the highest. Finally, the springback finite element simulation of three kinds of optimized forming parts is carried out. After observing the three kinds of results, it can be found that the area with small springback is larger and the product quality is the highest in the optimization of gray correlation degree. Then the springback compensation is used to calculate the springback again, and the parts that meet the requirements are obtained. In summary, it can be found that the optimized result of gray correlation degree has higher forming quality, and the optimal process parameter scheme can be obtained by gray correlation optimization, and it can be used as the process parameter in the field debugging stage. In this paper, the optimization of the process parameters for the stamping process of the back door inner plate is studied, which provides a reasonable reference for the determination of the best process parameter scheme for the CAE analysis of sheet metal stamping.
【學(xué)位授予單位】:安徽工程大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類(lèi)號(hào)】:U466;TG386
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 郭忠新,項(xiàng)輝宇,張蕾;汽車(chē)大型覆蓋件沖壓方向的優(yōu)化設(shè)計(jì)[J];山東大學(xué)學(xué)報(bào)(工學(xué)版);2003年05期
2 曲慶文;;大型覆蓋件成型中的摩擦學(xué)特性及區(qū)域劃分方法[J];潤(rùn)滑與密封;2006年11期
3 陳丹丹;柳葆生;劉渝;王安兵;;復(fù)雜覆蓋件拉延變形過(guò)程研究[J];塑性工程學(xué)報(bào);2008年03期
4 付爭(zhēng)春;胡平;劉海鵬;;外覆蓋件抗凹性能的模擬仿真研究(英文)[J];塑性工程學(xué)報(bào);2008年05期
5 黃延平;李文鵬;張宏利;;大型覆蓋件的切邊工藝[J];中國(guó)重型裝備;2010年03期
6 馬春華;馮靜;;淺談汽車(chē)外覆蓋件常用防銹方法[J];裝備制造技術(shù);2011年11期
7 楊磊;衡傳兵;;轎車(chē)外覆蓋件沖壓變形的控制措施[J];模具制造;2013年01期
8 劉鋒,王耕耘,李志剛;基于功能組件的覆蓋件拉延模三維CAD系統(tǒng)的研究[J];鍛壓裝備與制造技術(shù);2004年01期
9 付爭(zhēng)春;馬俊山;胡平;王惠平;趙坤民;;汽車(chē)外覆蓋件表面凹陷與畸變的實(shí)驗(yàn)與仿真[J];塑性工程學(xué)報(bào);2009年02期
10 李凡;王義林;;覆蓋件工藝設(shè)計(jì)中型面修復(fù)技術(shù)研究[J];模具制造;2010年12期
相關(guān)會(huì)議論文 前7條
1 郭成;史東才;王朝明;蘇文斌;劉高嶺;;基于經(jīng)驗(yàn)知識(shí)的覆蓋件成形過(guò)程數(shù)值模擬與參數(shù)優(yōu)化[A];第八屆全國(guó)塑性加工學(xué)術(shù)年會(huì)論文集[C];2002年
2 郭成;史東才;王朝明;蘇文斌;劉高嶺;;基于經(jīng)驗(yàn)知識(shí)的覆蓋件成形過(guò)程數(shù)值模擬與參數(shù)優(yōu)化[A];制造業(yè)與未來(lái)中國(guó)——2002年中國(guó)機(jī)械工程學(xué)會(huì)年會(huì)論文集[C];2002年
3 季和興;;覆蓋件拉延模加工基準(zhǔn)的選擇及誤差[A];塑性加工技術(shù)文集[C];1992年
4 冉金樂(lè);王樹(shù)杉;和志勇;徐躍飛;;汽車(chē)沖壓覆蓋件星目缺陷分析與對(duì)策[A];第九屆河南省汽車(chē)工程技術(shù)研討會(huì)論文集[C];2012年
5 宋愛(ài)平;陳婷;;可重構(gòu)的板料覆蓋件沖壓模具[A];提高全民科學(xué)素質(zhì)、建設(shè)創(chuàng)新型國(guó)家——2006中國(guó)科協(xié)年會(huì)論文集(下冊(cè))[C];2006年
6 李瑞杰;;淺談某覆蓋件拉延問(wèn)題的原因分析及對(duì)策[A];第九屆河南省汽車(chē)工程技術(shù)研討會(huì)論文集[C];2012年
7 付爭(zhēng)春;鄭國(guó)君;胡平;;車(chē)身外覆蓋件表面缺陷產(chǎn)生機(jī)理的仿真研究[A];慶祝中國(guó)力學(xué)學(xué)會(huì)成立50周年暨中國(guó)力學(xué)學(xué)會(huì)學(xué)術(shù)大會(huì)’2007論文摘要集(下)[C];2007年
相關(guān)博士學(xué)位論文 前2條
1 陳濤;基于離散模型的網(wǎng)格剖分方法及覆蓋件沖壓仿真參數(shù)化建模[D];湖南大學(xué);2007年
2 狄馳;基于CAE的覆蓋件模面工程系統(tǒng)若干關(guān)鍵算法研究[D];吉林大學(xué);2009年
相關(guān)碩士學(xué)位論文 前10條
1 王德軍;縱梁延伸板成形模擬研究及工程應(yīng)用[D];山東大學(xué);2015年
2 杜晨宇;轎車(chē)覆蓋件的成形分析和數(shù)值模擬[D];安徽工程大學(xué);2015年
3 劉鋒;基于功能的覆蓋件拉延模三維CAD系統(tǒng)的研究與開(kāi)發(fā)[D];華中科技大學(xué);2004年
4 付雷杰;覆蓋件成形中的特性分析[D];山東理工大學(xué);2008年
5 黃平華;汽車(chē)典型覆蓋件曲面重構(gòu)及成形過(guò)程缺陷分析[D];上海交通大學(xué);2007年
6 周偉;覆蓋件沖壓方向調(diào)整算法的研究與軟件開(kāi)發(fā)[D];南京航空航天大學(xué);2009年
7 呂宏展;機(jī)器玻璃鋼覆蓋件工藝的研究[D];重慶大學(xué);2008年
8 徐翔;汽車(chē)典型覆蓋件曲面重構(gòu)及精度提高[D];北方工業(yè)大學(xué);2009年
9 李凡;覆蓋件沖壓工藝設(shè)計(jì)中型面修復(fù)技術(shù)研究[D];華中科技大學(xué);2011年
10 王隆娟;基于知識(shí)的覆蓋件工藝型面設(shè)計(jì)系統(tǒng)的研究[D];華中科技大學(xué);2005年
,本文編號(hào):2363386
本文鏈接:http://sikaile.net/kejilunwen/jinshugongy/2363386.html