本文關(guān)鍵詞：大型裝載機(jī)翻車和落物保護(hù)結(jié)構(gòu)有限元分析及試驗(yàn)研究　出處：《吉林大學(xué)》2011年碩士論文　論文類型：學(xué)位論文

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【摘要】：翻車和保護(hù)裝置(ROPS)是安裝在工程車輛駕駛室外的一鋼架結(jié)構(gòu)系統(tǒng),其主要功能是當(dāng)車輛發(fā)生滾翻等意外事故時(shí),保障駕駛員的安全,最大限度地降低事故造成的生命財(cái)產(chǎn)損失。隨著工程車輛出口量的增加及國(guó)際上對(duì)其安全保護(hù)性能要求的提高,進(jìn)入國(guó)際市場(chǎng)的工程車輛必須配備性能合格的ROPS,這就要求國(guó)內(nèi)各個(gè)工程車輛生產(chǎn)廠家和科研機(jī)構(gòu)改進(jìn)和完善工程車輛駕駛室的安全保護(hù)結(jié)構(gòu),并通過(guò)相應(yīng)的安全保護(hù)結(jié)構(gòu)試驗(yàn)獲取國(guó)際性安全認(rèn)證,為國(guó)產(chǎn)工程車輛國(guó)際出口鋪平道路。本文在此思想的指導(dǎo)下,針對(duì)大型輪式裝載機(jī)ROPS進(jìn)行了試 驗(yàn)和理論的研究,主要內(nèi)容如下: 1.以彈塑性力學(xué)理論為基礎(chǔ),應(yīng)用有限元分析軟件ANSYS建立了大型輪式裝載機(jī)ROPS和FOPS的非線性有限元模型,基于國(guó)際標(biāo)準(zhǔn)ISO 3471《土方機(jī)械──翻車保護(hù)結(jié)構(gòu)實(shí)驗(yàn)室試驗(yàn)和性能要求》及ISO 3164《土方機(jī)械──保護(hù)結(jié)構(gòu)的實(shí)驗(yàn)室鑒定──撓曲極限量的規(guī)定》,對(duì)其進(jìn)行了有限元分析。 2.按照上述國(guó)際標(biāo)準(zhǔn)對(duì)大型輪式裝載機(jī)的ROPS和FOPS結(jié)構(gòu)進(jìn)行了實(shí)物試驗(yàn),對(duì)其產(chǎn)品是否能達(dá)到國(guó)際標(biāo)準(zhǔn)規(guī)定的性能要求進(jìn)行了認(rèn)證;然后將有限元分析結(jié)果與試驗(yàn)結(jié)果進(jìn)行對(duì)比,比較結(jié)果表明所建立有限元分析模型是合理的,ROPS非線性分析結(jié)果是比較準(zhǔn)確的。通過(guò)本文的有限元分析和試驗(yàn)研究獲得了大型輪式裝載機(jī)ROPS的失效機(jī)理和設(shè)計(jì)時(shí)應(yīng)注意的關(guān)鍵問(wèn)題。
[Abstract]:Roll over and protection device (ROPS) is a steel structure engineering vehicle driving system is installed in the outdoor, its main function is when the vehicle rollover accidents, ensure the safety of the driver, to minimize accidents caused by the loss of life and property. With the increase of exports and international engineering vehicles on the safety protection performance requirements for the improvement of engineering vehicles to enter the international market must be equipped with qualified ROPS performance, safety protection structure which requires all domestic vehicle manufacturers and research institutions to improve and perfect the construction vehicle cab, and access to international safety certification through the corresponding security structure test, paving the way for the domestic international engineering vehicle exports. In this paper, under the guidance of this idea, in view of the large wheel loader ROPS test
The main contents of the study and theory are as follows:
1. the elastic-plastic mechanics theory, nonlinear finite element model using finite element analysis software ANSYS to establish a large wheel loader ROPS and FOPS, the international standard ISO 3471< - earthmoving machinery ROPS laboratory tests and performance requirements of 3164< and ISO > > stipulates: earthmoving machinery protection structure laboratory identification -- deflection limiting volume based on the finite element analysis was carried out.
2. in accordance with the international standard of large loader ROPS and FOPS structure of physical experiment, performance of the product can reach the international standard requirements for certification; then comparing the results of finite element analysis, comparison results show that the established finite element analysis model is reasonable, nonlinear analysis ROPS the result is more accurate. Attention should be paid to the failure mechanism and design of the key issues of this paper through the finite element analysis and experimental study of large wheeled loader for ROPS.

【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TH243

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 周良稷;挖掘裝載機(jī)翻車保護(hù)結(jié)構(gòu)設(shè)計(jì)、計(jì)算機(jī)仿真及試驗(yàn)[D];吉林大學(xué);2012年

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本文編號(hào)：1409795