【摘要】：隨著環(huán)境污染和能源匱乏的日益嚴(yán)重,節(jié)能與環(huán)保已經(jīng)成為未來(lái)的發(fā)展方向,而車用無(wú)級(jí)變速器具備較好燃油經(jīng)濟(jì)性受到業(yè)界的廣泛重視,為此,本課題組提出了基于半環(huán)形CVT的結(jié)構(gòu)基礎(chǔ)的無(wú)級(jí)變速器——BVT。本文對(duì)BVT中的阿基米德螺旋面自適應(yīng)加壓機(jī)構(gòu)進(jìn)行理論分析、仿真分析和實(shí)驗(yàn)研究,主要的研究工作如下：(1)根據(jù)BVT對(duì)加壓機(jī)構(gòu)的性能要求,查閱國(guó)內(nèi)外參考文獻(xiàn),指出第一代樣機(jī)中的鋼球V型槽自適應(yīng)加壓機(jī)構(gòu)的不足,提出了本文的研究?jī)?nèi)容及研究目標(biāo)。(2)為了比較螺旋面與鋼球V型槽自適應(yīng)加壓機(jī)構(gòu)的性能,分別對(duì)兩種加壓機(jī)構(gòu)進(jìn)行了受力分析和強(qiáng)度分析,優(yōu)化了螺旋面的結(jié)構(gòu)參數(shù),驗(yàn)證了兩種加壓機(jī)構(gòu)均滿足整車行駛工況的要求,而前者比后者具有傳動(dòng)系數(shù)小、抗沖擊能力強(qiáng)的優(yōu)點(diǎn),具有更優(yōu)越的自適應(yīng)加壓性能。(3)運(yùn)用有限元分析軟件ABAQUS,分別對(duì)螺旋面和鋼球V型槽自適應(yīng)加壓機(jī)構(gòu)在整車行駛工況下進(jìn)行接觸應(yīng)力分析。通過(guò)兩種加壓機(jī)構(gòu)的計(jì)算結(jié)果對(duì)比可知,螺旋面自適應(yīng)加壓機(jī)構(gòu)滿足整車行駛工況的要求且接觸應(yīng)力更小。同時(shí)將理論分析和有限元分析進(jìn)行對(duì)比,結(jié)果顯示,兩種計(jì)算結(jié)果基本相符,可作為螺旋面自適應(yīng)加壓機(jī)構(gòu)強(qiáng)度校核的依據(jù)。(4)利用虛擬樣機(jī)仿真軟件ADAMS,采用多柔體系統(tǒng)動(dòng)力學(xué)方法,分別建立螺旋面和鋼球V型槽自適應(yīng)加壓機(jī)構(gòu)的多柔體系統(tǒng)模型,并進(jìn)行仿真研究,得到了加壓機(jī)構(gòu)在整車行駛工況下的仿真曲線。通過(guò)對(duì)比,驗(yàn)證了理論計(jì)算和仿真實(shí)驗(yàn)的有效性,以及螺旋面自適應(yīng)加壓機(jī)構(gòu)具有更優(yōu)越的自適應(yīng)加壓性能。(5)在實(shí)驗(yàn)臺(tái)架上完成了BVT第二代(螺旋面自適應(yīng)加壓機(jī)構(gòu))物理樣機(jī)的空載測(cè)試和加載測(cè)試。通過(guò)對(duì)兩種加壓機(jī)構(gòu)實(shí)驗(yàn)結(jié)果同理論分析及仿真分析的對(duì)比,驗(yàn)證了螺旋面自適應(yīng)加壓機(jī)構(gòu)具有承載能力大、加壓性能穩(wěn)定可靠?jī)?yōu)勢(shì),滿足BVT的加壓需求。本文驗(yàn)證了螺旋面自適應(yīng)加壓機(jī)構(gòu)在整車行駛工況下工作的可靠性,為課題組針對(duì)BVT的進(jìn)一步開發(fā)提供參考。
[Abstract]:With the increasing severity of environmental pollution and lack of energy, energy saving and environmental protection have become the development direction in the future, and the fuel economy of vehicle CVT has been paid more and more attention by the industry. Our research group puts forward BVT., which is based on the structure of semi-annular CVT. In this paper, the Archimedes spiral adaptive compression mechanism in BVT is analyzed theoretically, simulated and studied experimentally. the main research work is as follows: (1) according to the performance requirements of BVT for compression mechanism, the references at home and abroad are consulted. The shortcomings of the steel ball V-groove adaptive compression mechanism in the first generation prototype are pointed out, and the research contents and research objectives of this paper are put forward. (2) in order to compare the performance of the spiral surface and the steel ball V-groove adaptive compression mechanism, The stress analysis and strength analysis of the two kinds of compression mechanisms are carried out respectively, and the structural parameters of the spiral surface are optimized, and it is verified that the two kinds of compression mechanisms meet the requirements of the driving condition of the whole vehicle, and the former has smaller transmission coefficient than the latter. It has the advantages of strong impact resistance and better adaptive compression performance. (3) the contact stress of spiral surface and V-groove adaptive compression mechanism of steel ball is analyzed by using the finite element analysis software ABAQUS, under the driving condition of the whole vehicle. (3) the contact stress of the spiral surface and the V-groove adaptive compression mechanism of the steel ball is analyzed by using the finite element analysis software FEA. Through the comparison of the calculation results of the two kinds of compression mechanisms, it can be seen that the spiral surface adaptive compression mechanism meets the requirements of the driving condition of the whole vehicle and the contact stress is smaller. At the same time, the theoretical analysis and finite element analysis are compared. the results show that the two calculation results are basically consistent, which can be used as the basis for strength check of spiral adaptive compression mechanism. (4) using virtual prototype simulation software ADAMS, By using the dynamic method of multi-flexible body system, the multi-flexible system models of spiral surface and steel ball V-groove adaptive compression mechanism are established respectively, and the simulation curves of the compression mechanism under the driving condition of the whole vehicle are obtained. Through comparison, the effectiveness of theoretical calculation and simulation experiment is verified. And the spiral surface adaptive compression mechanism has better adaptive compression performance. (5) the no-load test and loading test of the second generation (spiral surface adaptive compression mechanism) physical prototype of BVT are completed on the experimental bench. By comparing the experimental results of the two kinds of compression mechanisms with theoretical analysis and simulation analysis, it is verified that the spiral surface adaptive compression mechanism has the advantages of large bearing capacity, stable and reliable compression performance, and meets the pressure requirements of BVT. In this paper, the reliability of the spiral adaptive pressure mechanism under the driving condition of the whole vehicle is verified, which provides a reference for the further development of the research group for BVT.
【學(xué)位授予單位】：廣東工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：U463.212

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 郝建軍;劉云云;蘭家水;熊鋒;;凸輪加壓CVT設(shè)計(jì)與仿真[J];機(jī)械傳動(dòng);2015年03期

2 申孟宜;;高汽車保有量下的PM2.5治理研究[J];調(diào)研世界;2013年07期

3 趙志禮;宋智鷹;;立柱和千斤頂缸口矩形螺紋參數(shù)優(yōu)化[J];煤礦開采;2013年02期

4 鄭麗偉;付存銀;賈春強(qiáng);;點(diǎn)接觸局部應(yīng)力問題研究[J];煤礦機(jī)械;2012年08期

5 關(guān)佩;陳家慶;;Hertz點(diǎn)接觸問題求解方法的對(duì)比研究[J];機(jī)械科學(xué)與技術(shù);2011年07期

6 曹成龍;周云山;高帥;安穎;;金屬帶式無(wú)級(jí)變速器夾緊力試驗(yàn)研究[J];湖南大學(xué)學(xué)報(bào)(自然科學(xué)版);2010年07期

7 何輝波;李華英;秦大同;何培祥;;汽車環(huán)面型無(wú)級(jí)變速器結(jié)構(gòu)參數(shù)優(yōu)化設(shè)計(jì)[J];機(jī)械工程學(xué)報(bào);2009年05期

8 周有強(qiáng),崔學(xué)良,董志峰;機(jī)械無(wú)級(jí)變速器發(fā)展概述[J];機(jī)械傳動(dòng);2005年01期

9 劉開昌,藍(lán)兆輝,石宗寶;行星錐盤式無(wú)級(jí)變速器的創(chuàng)新設(shè)計(jì)[J];包裝與食品機(jī)械;2003年04期

10 ;An overview on research developments of toroidal continuously variable transmissions[J];Journal of Chongqing University;2003年01期

相關(guān)博士學(xué)位論文 前1條

1 李曉濱;大規(guī)格GCr15軸承鋼連鑄連軋質(zhì)量分析及有限元模擬[D];東北大學(xué);2011年

相關(guān)碩士學(xué)位論文 前10條

1 譚豐哲;基于虛擬樣機(jī)技術(shù)的新型無(wú)級(jí)變速器的動(dòng)力學(xué)仿真分析[D];華南理工大學(xué);2015年

2 易園園;AMT換檔機(jī)構(gòu)動(dòng)態(tài)仿真與優(yōu)化設(shè)計(jì)[D];廣東工業(yè)大學(xué);2014年

3 任珂珂;河南省新能源汽車產(chǎn)業(yè)化的風(fēng)險(xiǎn)研究[D];蘭州交通大學(xué);2013年

4 何威;內(nèi)置氣動(dòng)式彈射裝置設(shè)計(jì)與虛擬樣機(jī)仿真研究[D];大連理工大學(xué);2012年

5 楊凱;金屬帶式CVT夾緊力控制及液壓控制系統(tǒng)的仿真分析[D];湖南大學(xué);2012年

6 袁中亮;金屬帶式無(wú)級(jí)變速器夾緊力控制研究[D];吉林大學(xué);2011年

7 張歡;基于虛擬樣機(jī)的大型船用甲板起重機(jī)結(jié)構(gòu)動(dòng)力學(xué)仿真研究[D];武漢理工大學(xué);2011年

8 姚娟;基于虛擬樣機(jī)技術(shù)的減速器動(dòng)力學(xué)仿真研究[D];武漢理工大學(xué);2008年

9 張春亮;2K-V型減速機(jī)的虛擬樣機(jī)仿真研究[D];天津工程師范學(xué)院;2008年

10 張爾文;重載傳動(dòng)螺旋副受力分析與承載能力研究[D];廣東工業(yè)大學(xué);2007年

，

本文編號(hào)：2478998