本文選題：隨車起重機(jī) + 結(jié)構(gòu)優(yōu)化��； 參考：《華南理工大學(xué)》2015年碩士論文

【摘要】：隨著起重機(jī)設(shè)計(jì)技術(shù)的發(fā)展,伸縮臂結(jié)構(gòu)在隨車起重機(jī)上的應(yīng)用也越來(lái)越廣泛,特別是在重型隨車起重機(jī)上,箱形伸縮式起重臂已經(jīng)表現(xiàn)出很大的發(fā)展前途。而伸縮臂、滑塊以及油缸作為隨車起重機(jī)的主要承重結(jié)構(gòu)部件,其設(shè)計(jì)的合理性,將對(duì)整機(jī)的起重性能有著直接的影響。本文以廣東省韶關(guān)市起重機(jī)廠有限責(zé)任公司生產(chǎn)的SQ3200ZB6重型隨車起重機(jī)為研究對(duì)象,結(jié)合其載荷試驗(yàn)的測(cè)試結(jié)果,重點(diǎn)對(duì)承重結(jié)構(gòu)關(guān)鍵件(伸縮臂、滑塊、油缸)進(jìn)行研究,探索合理的承重結(jié)構(gòu)關(guān)鍵件的設(shè)計(jì)方法與分析思路,為系列產(chǎn)品的開(kāi)發(fā)提供借鑒與參考。首先,以伸縮臂截面參數(shù)為設(shè)計(jì)變量、以結(jié)構(gòu)強(qiáng)度為約束條件、以伸縮臂的質(zhì)量和變形量為優(yōu)化目標(biāo),采用近似模型與遺傳算法相結(jié)合的優(yōu)化方法進(jìn)行多目標(biāo)結(jié)構(gòu)優(yōu)化設(shè)計(jì),并在優(yōu)化過(guò)程中探討設(shè)計(jì)變量對(duì)目標(biāo)變量的影響。結(jié)果表明多目標(biāo)優(yōu)化不僅能夠獲得截面參數(shù)的最優(yōu)解集,而且提高了截面設(shè)計(jì)的靈活性。其次,基于正交試驗(yàn)設(shè)計(jì)方法對(duì)滑塊接觸應(yīng)力的影響因素進(jìn)行敏感性分析,確定因素的主次,并對(duì)影響因素的最優(yōu)組合方案進(jìn)行驗(yàn)證,以改善滑塊接觸應(yīng)力分布。敏感性分析結(jié)果表明滑塊材料與滑塊寬度尺寸對(duì)接觸區(qū)域滑塊應(yīng)力影響最大;通過(guò)對(duì)因素進(jìn)行整體分析,避免了單因素分析法的不足,同時(shí)對(duì)各影響因素有更加全面的理解。最后,結(jié)合實(shí)際受力情況,對(duì)承受軸向支撐載荷的伸縮臂驅(qū)動(dòng)油缸分別進(jìn)行穩(wěn)定性分析及強(qiáng)度分析。并在此基礎(chǔ)上就初始變形對(duì)油缸穩(wěn)定性的影響進(jìn)行探討分析,提出相應(yīng)的建議和解決辦法,為提高隨車起重機(jī)伸縮臂驅(qū)動(dòng)油缸的穩(wěn)定性提供參考。
[Abstract]:With the development of crane design technology, the structure of telescopic boom is more and more widely used in truck crane, especially in heavy truck crane, box-shaped telescopic boom has shown great development prospects. As the main load-bearing components of the crane, the rationality of the design of the telescopic boom, slider and oil cylinder will have a direct impact on the lifting performance of the whole crane. This paper takes the SQ3200ZB6 heavy truck crane produced by Shaoguan Crane Factory of Guangdong Province as the research object, combined with the test results of its load test, focuses on the research of the key parts of the load-bearing structure (telescopic arm, slider, oil cylinder). In order to provide reference and reference for the development of series products, this paper explores the reasonable design method and analysis thought of the key parts of load-bearing structure. Firstly, the cross-section parameters of the telescopic arm are taken as the design variables, the structural strength is taken as the constraint condition, the mass and deformation of the telescopic arm are taken as the optimization objectives, and the optimization method combining approximate model and genetic algorithm is used to carry out the multi-objective structural optimization design. In the process of optimization, the influence of design variables on target variables is discussed. The results show that multi-objective optimization can not only obtain the optimal solution set of cross-section parameters, but also improve the flexibility of cross-section design. Secondly, based on the orthogonal design method, the sensitivity of the factors affecting the contact stress of the slider is analyzed, and the primary and secondary factors are determined, and the optimal combination scheme of the influencing factors is verified to improve the distribution of the contact stress of the slider. The sensitivity analysis results show that the size of slider material and slider width have the greatest influence on the stress of sliding block in the contact area, and through the overall analysis of the factors, the shortcomings of the single factor analysis method are avoided, and the influence factors are more fully understood. Finally, the stability analysis and strength analysis of the telescopic arm drive cylinder bearing axial support load are carried out. On this basis, the influence of initial deformation on cylinder stability is discussed and analyzed, and the corresponding suggestions and solutions are put forward to provide a reference for improving the stability of the cylinder driven by telescopic jib of truck crane.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TH21

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 羅世彬,羅文彩,王振國(guó);基于試驗(yàn)設(shè)計(jì)和響應(yīng)面近似的高超聲速巡航飛行器多學(xué)科設(shè)計(jì)優(yōu)化[J];導(dǎo)彈與航天運(yùn)載技術(shù);2003年06期

2 楊立治;起重機(jī)伸縮臂的優(yōu)化設(shè)計(jì)[J];大連工學(xué)院學(xué)報(bào);1982年04期

3 于雷,鄭云龍;逐步回歸響應(yīng)面法[J];大連理工大學(xué)學(xué)報(bào);1999年06期

4 王欣;黃琳;高媛;高順德;王益華;;起重機(jī)伸縮臂截面拓?fù)鋬?yōu)化[J];大連理工大學(xué)學(xué)報(bào);2009年03期

5 劉士明;陸念力;寇捷;;起重機(jī)箱形伸縮臂整體穩(wěn)定性分析[J];中國(guó)工程機(jī)械學(xué)報(bào);2010年01期

6 言正;王震宇;杜忠權(quán);;關(guān)于箱形伸縮吊臂的設(shè)計(jì)問(wèn)題[J];工程機(jī)械;1977年01期

7 劉古岷;關(guān)于長(zhǎng)細(xì)液壓缸穩(wěn)定性的近似計(jì)算公式[J];工程機(jī)械;1993年12期

8 董世民;長(zhǎng)細(xì)液壓缸穩(wěn)定性校核的新方法[J];工程機(jī)械;2001年03期

9 王鳳萍,孫影,鄭漪;國(guó)內(nèi)外隨車起重機(jī)的現(xiàn)狀及發(fā)展趨勢(shì)[J];工程機(jī)械;2004年02期

10 張維剛;廖興濤;鐘志華;;基于逐步回歸模型的汽車碰撞安全性多目標(biāo)優(yōu)化[J];機(jī)械工程學(xué)報(bào);2007年08期

相關(guān)碩士學(xué)位論文 前4條

1 林雪;箱型伸縮臂滑塊的接觸分析及規(guī)律研究[D];大連理工大學(xué);2011年

2 李志敏;伸縮吊臂滑塊局部應(yīng)力分析及變化規(guī)律研究[D];西南交通大學(xué);2009年

3 楊山林;U型伸縮臂下滑塊調(diào)整對(duì)接觸應(yīng)力影響研究[D];大連理工大學(xué);2013年

4 陳晨;起重機(jī)伸縮臂綜合性能及其多目標(biāo)優(yōu)化設(shè)計(jì)研究[D];湖南大學(xué);2013年

，

本文編號(hào)：1776965