本文選題：驅(qū)動(dòng)橋半軸 + 回收件��； 參考：《廣西大學(xué)》2017年碩士論文

【摘要】：本文針對(duì)某裝載機(jī)傳動(dòng)系驅(qū)動(dòng)橋半軸可再制造評(píng)估問(wèn)題,研究了半軸有限元模型中的最惡加載位置,及在最惡加載位置半軸花鍵齒根裂紋缺陷的引入方法;還根據(jù)非線性接觸有限元理論和Miner疲勞分析理論,在壽命評(píng)估的基礎(chǔ)上,探索半軸回收件可用于再制造檢測(cè)回收所能允許的最大裂紋極限參數(shù)的判據(jù)。主要研究?jī)?nèi)容包括:1依據(jù)半軸花鍵齒漸開線的描述形式,利用UG建模功能創(chuàng)建精確的三維模型,為下文有限元分析確定其最惡加載位置及齒根裂紋的引入打下基礎(chǔ)。2為了得到半軸強(qiáng)度應(yīng)力大小及分布情況,本文采用非線性接觸有限元理論來(lái)分析獲得最惡加載位置條件下半軸最大等效應(yīng)力的分布情況,然后根據(jù)Lewicki提出的裂紋擴(kuò)展路徑簡(jiǎn)化裂紋模型,依照J(rèn).Kramberger提出的齒根應(yīng)力最大點(diǎn)位置(ψ= 300～340),在該位置引入裂紋模型并進(jìn)行有限元分析。3通過(guò)對(duì)半軸的材料結(jié)構(gòu)特性及應(yīng)力集中、表面情況、尺寸效應(yīng)和加載情況進(jìn)行分析得到半軸的S-N曲線。在此基礎(chǔ)上分析某裝載機(jī)典型作業(yè)工況,利用變幅載荷來(lái)分析疲勞強(qiáng)度。為了得到某裝載機(jī)半軸載荷應(yīng)力譜,運(yùn)用概率統(tǒng)計(jì)法和“3σ”法則來(lái)計(jì)算變幅載荷的正態(tài)分布情況。根據(jù)Miner疲勞分析理論,結(jié)合半軸的S-N曲線及載荷譜對(duì)半軸回收件進(jìn)行疲勞壽命分析,結(jié)合不同載荷條件下裂紋應(yīng)力變化規(guī)律,通過(guò)反推法推出最大疲勞應(yīng)力值,最后對(duì)比分析獲得齒根裂紋極限參數(shù)值。4初步建立了半軸回收件極限裂紋的判斷方法,為半軸再制造件及其他再制造零部件的使用提供參考。
[Abstract]:In this paper, aiming at the remanufacturing evaluation problem of the semi axle of the driving axle of a loader, the worst loading position in the semi axial finite element model and the introduction of the crack defect of the semi axis spline tooth root in the worst loading position are studied. On the basis of the nonlinear contact finite element theory and the Miner fatigue analysis theory, the study is based on the life evaluation. The semi axle recovery part can be used for the criterion of maximum crack limit parameters that can be allowed in remanufacturing. The main contents include: 1 according to the description form of the semi axle spline involute, a precise three-dimensional model is created using the UG modeling function, and the following finite element analysis is used to determine the worst loading position and the introduction of the root crack. Based on the nonlinear contact finite element theory, the distribution of the maximum equivalent stress of the semi axle under the condition of the most bad loading is obtained by using the nonlinear contact finite element theory to obtain the size and distribution of the strength stress of the semi shaft. Then the crack propagation path is simplified according to the crack propagation path proposed by the Lewicki, according to the maximum stress point of the root stress proposed by J.Kramberger. In this position, the crack model is introduced and the finite element analysis.3 is used to analyze the S-N curve of the semi shaft by analyzing the material structure characteristics of the half axis, the stress concentration, the surface condition, the size effect and the loading condition. On this basis, the typical working conditions of a loader are analyzed and the fatigue strength is analyzed by the variable amplitude load. The load stress spectrum of the half axle load of a loader is obtained. The normal distribution of the variable amplitude load is calculated by using the probability statistics method and the "3 Sigma" rule. According to the Miner fatigue analysis theory, the fatigue life analysis is carried out on the semi shaft recovery parts with the S-N curve and the load spectrum of the half axis, and the stress change law under the different load conditions is combined with the back push. The maximum fatigue stress value is introduced by the method. At last, the limit parameter value of the tooth root crack is obtained by comparison and analysis. The judgment method for the limit crack of the semi shaft recovery parts is initially established, which provides reference for the use of the semi shaft remanufacturing parts and other remanufactured parts.
【學(xué)位授予單位】：廣西大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TH243

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 蒙秋紅;王國(guó)安;鄧穎章;周紹信;;三種不同材質(zhì)的裝載機(jī)半軸性能對(duì)比研究[J];工程機(jī)械;2013年11期

2 ;“以舊換再”工程機(jī)械再制造路在腳下[J];中國(guó)招標(biāo);2013年42期

3 黃群慧;;中國(guó)的工業(yè)化進(jìn)程:階段、特征與前景[J];經(jīng)濟(jì)與管理;2013年07期

4 崔鼎;蘇友斌;崔云俊;鮮玉強(qiáng);張偉;;微波結(jié)構(gòu)中的體殼單元混合建模方法[J];強(qiáng)激光與粒子束;2013年S1期

5 厲明波;;淺談工程機(jī)械再制造及對(duì)綠色經(jīng)濟(jì)實(shí)現(xiàn)的促進(jìn)作用[J];科協(xié)論壇(下半月);2013年03期

6 徐濱士;董世運(yùn);朱勝;史佩京;;再制造成形技術(shù)發(fā)展及展望[J];機(jī)械工程學(xué)報(bào);2012年15期

7 王麗萍;徐穎強(qiáng);崔艷梅;;基于高彎曲強(qiáng)度的齒輪過(guò)渡曲線分析[J];機(jī)械強(qiáng)度;2012年03期

8 黃建民;;有限元技術(shù)的發(fā)展及其在裝備制造業(yè)中的應(yīng)用[J];上海電機(jī)學(xué)院學(xué)報(bào);2010年03期

9 郭忠;張艷冬;;基于APDL的漸開線直齒圓柱齒輪參數(shù)化精確建模[J];機(jī)械制造與自動(dòng)化;2010年03期

10 王繼新;胡季;侯曉婷;劉林;;利用載荷譜的輪式裝載機(jī)半軸有限元分析[J];現(xiàn)代制造工程;2010年05期

相關(guān)會(huì)議論文 前1條

1 王文閣;趙晉;劉再生;魏文廣;;半軸、傳動(dòng)軸扭轉(zhuǎn)剛度對(duì)傳動(dòng)系沖擊的影響[A];2011中國(guó)汽車工程學(xué)會(huì)年會(huì)論文集[C];2011年

相關(guān)博士學(xué)位論文 前1條

1 吳建國(guó);裂紋擴(kuò)展與損傷演化理論與應(yīng)用研究[D];北京航空航天大學(xué);2009年

相關(guān)碩士學(xué)位論文 前3條

1 宋溶澤;裂紋齒輪—轉(zhuǎn)子系統(tǒng)振動(dòng)特性分析[D];東北大學(xué);2014年

2 王乃祥;基于多準(zhǔn)則的裝載機(jī)半軸載荷樣本長(zhǎng)度的確定方法[D];吉林大學(xué);2012年

3 林小夏;有限元仿真分析中載荷施加技術(shù)及其在低壓斷路器開發(fā)中的應(yīng)用[D];浙江大學(xué);2007年

，

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