客車(chē)車(chē)身骨架應(yīng)變與剛度實(shí)驗(yàn).doc
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客車(chē)車(chē)身骨架應(yīng)變與剛度實(shí)驗(yàn),1.88萬(wàn)字自己原創(chuàng)的畢業(yè)論文,已經(jīng)通過(guò)校內(nèi)系統(tǒng)檢測(cè),重復(fù)率低,僅在本站獨(dú)家出售,大家放心下載使用目錄摘要3abstract4第一章 緒論51.1實(shí)驗(yàn)背景與目的51.2本課題國(guó)內(nèi)外研究現(xiàn)狀61.3本課題的主要研究?jī)?nèi)容7第二章車(chē)身骨架應(yīng)力與形變實(shí)驗(yàn)82.1 實(shí)驗(yàn)的主要儀器及輔助器材82.2 實(shí)驗(yàn)...
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此文檔由會(huì)員 淘寶大夢(mèng) 發(fā)布
客車(chē)車(chē)身骨架應(yīng)變與剛度實(shí)驗(yàn)
1.88萬(wàn)字
自己原創(chuàng)的畢業(yè)論文,已經(jīng)通過(guò)校內(nèi)系統(tǒng)檢測(cè),重復(fù)率低,僅在本站獨(dú)家出售,大家放心下載使用
目 錄
摘要 3
Abstract 4
第一章 緒 論 5
1.1實(shí)驗(yàn)背景與目的 5
1.2本課題國(guó)內(nèi)外研究現(xiàn)狀 6
1.3本課題的主要研究?jī)?nèi)容 7
第二章 車(chē)身骨架應(yīng)力與形變實(shí)驗(yàn) 8
2.1 實(shí)驗(yàn)的主要儀器及輔助器材 8
2.2 實(shí)驗(yàn)對(duì)象的選擇與處理 8
2.3實(shí)驗(yàn)方案 11
2.3.1應(yīng)變片的結(jié)構(gòu)和工作原理 11
2.3.2應(yīng)變片的溫度誤差及補(bǔ)償辦法 13
2.3.3應(yīng)變片的布置 15
2.3.4應(yīng)變片的貼片方法 19
2.3.5實(shí)驗(yàn)過(guò)程的加載方式 20
2.3.6實(shí)驗(yàn)過(guò)程的注意點(diǎn) 21
2.4 實(shí)驗(yàn)步驟 22
2.4.1 實(shí)驗(yàn)工況的選擇 22
2.4.2彎曲工況 23
2.4.3彎扭工況 24
2.5本章小結(jié) 24
第三章 車(chē)身數(shù)據(jù)的處理與結(jié)果分析 226
3.1實(shí)驗(yàn)數(shù)據(jù)的處理 26
3.2實(shí)驗(yàn)數(shù)據(jù)列表 28
3.3實(shí)驗(yàn)結(jié)果分析 32
3.3.1強(qiáng)度分析 32
3.3.2剛度分析 33
3.4 本章小結(jié) 35
第四章 有限元模型的建立方法 36
4.1 單元類型的選擇 36
4.2車(chē)身骨架的簡(jiǎn)化 36
4.3 網(wǎng)格的劃分 37
4.4 車(chē)身載荷的處理 37
4.5本章小結(jié) 37
總 結(jié) 38
致 謝 39
參考文獻(xiàn) 40
摘要:面對(duì)經(jīng)濟(jì)和技術(shù)飛速發(fā)展的今天,汽車(chē)的安全性、經(jīng)濟(jì)性和環(huán)保性得到了廣泛的關(guān)注。對(duì)于大客車(chē)這種日常生活中必不可少的交通工具,本文結(jié)合國(guó)內(nèi)外相關(guān)的一些試驗(yàn)和研究資料對(duì)6109型城市客車(chē)的車(chē)身骨架進(jìn)行了一些實(shí)驗(yàn)。
本文依據(jù)GB/T 6792-2009《客車(chē)骨架應(yīng)力與形變測(cè)量方法》和靜態(tài)應(yīng)力電測(cè)實(shí)驗(yàn)標(biāo)準(zhǔn),在企業(yè)的總裝車(chē)間進(jìn)行了彎曲工況和彎扭工況下的6109型城市客車(chē)的車(chē)身骨架的應(yīng)力與形變的測(cè)量實(shí)驗(yàn)。
這次實(shí)驗(yàn)的目的在于測(cè)量車(chē)身骨架上不同測(cè)點(diǎn)在不同工況下的應(yīng)力值,了解不同工況下車(chē)身的應(yīng)力分布情況;對(duì)車(chē)身的強(qiáng)度和剛度進(jìn)行分析,考察車(chē)身結(jié)構(gòu)設(shè)計(jì)的合理性,同時(shí)驗(yàn)證所建立的有限元模型是否準(zhǔn)確、是否客觀的反應(yīng)了客車(chē)骨架的實(shí)際情況,為車(chē)身骨架結(jié)構(gòu)的優(yōu)化和輕量化設(shè)計(jì)提供可靠依據(jù)。
對(duì)本次實(shí)驗(yàn)的結(jié)果,各個(gè)工況下車(chē)架的整體變形量都比較小,應(yīng)力值均未超過(guò)材料的屈服極限,表明車(chē)身結(jié)構(gòu)強(qiáng)度和剛度有較大的余量,可通過(guò)這些余量進(jìn)行輕量化設(shè)計(jì);對(duì)比分析彎曲工況下實(shí)驗(yàn)結(jié)果和有限元計(jì)算的結(jié)果,發(fā)現(xiàn)有限元模型能夠比較客觀的反應(yīng)實(shí)際的受力情況,驗(yàn)證了有限元模型的準(zhǔn)確性。
關(guān)鍵詞:客車(chē)車(chē)身骨架結(jié)構(gòu); 剛度和應(yīng)變?cè)囼?yàn); 結(jié)構(gòu)分析; 輕量化。
Bus body skeleton strain and stiffness experiment
Abstract:Facing the rapid development of the economy and technology ,the safety, economical and environmental of vehicle has been aroused widespread concern. So we choose bus which is essential for our daily life , combining the test and research data at home and abroad related to type 6109 city bus body skeleton of some experiments.
This article is on the basis of GB/T 6792-2009 "bus frame stress and deformation measurement method" and the static stress measurement experimental standard. We has measured the force and deformation about the body skeleton of 6019 city bus under the working conditions of bending and torsion in the assembly shop of the company.
The aims of the experiment are as follows: first, measurement the different values of the bus body skeleton under different work conditions, to understand the situation of the stress distribution under different conditions. Second, analysis the strength and stiffness of the bus body, consider about the reasonableness of the body structure design, and
at the same time test whether the finite element model was established right or not , whether objectively reflect the actual situation of the bus frame, and provide a reliable basis for the optimization of body structure and lightweight design.
The results of this experiment, each case frame the whole deformation are relatively small, the stress value was less than the yield limit of material, show that the strength and stiffness of the structure has a larger allowance, through these allowances we can has a lightweight design. Analysis of the experimental results of bending loads and finite element calculation results, that the finite element model can objectively reflect the actual stress state, to verify the accuracy of the finite element model.
Keywords: bus body frame structure; stiffness and strain test; structure analysis; lightweight
1.88萬(wàn)字
自己原創(chuàng)的畢業(yè)論文,已經(jīng)通過(guò)校內(nèi)系統(tǒng)檢測(cè),重復(fù)率低,僅在本站獨(dú)家出售,大家放心下載使用
目 錄
摘要 3
Abstract 4
第一章 緒 論 5
1.1實(shí)驗(yàn)背景與目的 5
1.2本課題國(guó)內(nèi)外研究現(xiàn)狀 6
1.3本課題的主要研究?jī)?nèi)容 7
第二章 車(chē)身骨架應(yīng)力與形變實(shí)驗(yàn) 8
2.1 實(shí)驗(yàn)的主要儀器及輔助器材 8
2.2 實(shí)驗(yàn)對(duì)象的選擇與處理 8
2.3實(shí)驗(yàn)方案 11
2.3.1應(yīng)變片的結(jié)構(gòu)和工作原理 11
2.3.2應(yīng)變片的溫度誤差及補(bǔ)償辦法 13
2.3.3應(yīng)變片的布置 15
2.3.4應(yīng)變片的貼片方法 19
2.3.5實(shí)驗(yàn)過(guò)程的加載方式 20
2.3.6實(shí)驗(yàn)過(guò)程的注意點(diǎn) 21
2.4 實(shí)驗(yàn)步驟 22
2.4.1 實(shí)驗(yàn)工況的選擇 22
2.4.2彎曲工況 23
2.4.3彎扭工況 24
2.5本章小結(jié) 24
第三章 車(chē)身數(shù)據(jù)的處理與結(jié)果分析 226
3.1實(shí)驗(yàn)數(shù)據(jù)的處理 26
3.2實(shí)驗(yàn)數(shù)據(jù)列表 28
3.3實(shí)驗(yàn)結(jié)果分析 32
3.3.1強(qiáng)度分析 32
3.3.2剛度分析 33
3.4 本章小結(jié) 35
第四章 有限元模型的建立方法 36
4.1 單元類型的選擇 36
4.2車(chē)身骨架的簡(jiǎn)化 36
4.3 網(wǎng)格的劃分 37
4.4 車(chē)身載荷的處理 37
4.5本章小結(jié) 37
總 結(jié) 38
致 謝 39
參考文獻(xiàn) 40
摘要:面對(duì)經(jīng)濟(jì)和技術(shù)飛速發(fā)展的今天,汽車(chē)的安全性、經(jīng)濟(jì)性和環(huán)保性得到了廣泛的關(guān)注。對(duì)于大客車(chē)這種日常生活中必不可少的交通工具,本文結(jié)合國(guó)內(nèi)外相關(guān)的一些試驗(yàn)和研究資料對(duì)6109型城市客車(chē)的車(chē)身骨架進(jìn)行了一些實(shí)驗(yàn)。
本文依據(jù)GB/T 6792-2009《客車(chē)骨架應(yīng)力與形變測(cè)量方法》和靜態(tài)應(yīng)力電測(cè)實(shí)驗(yàn)標(biāo)準(zhǔn),在企業(yè)的總裝車(chē)間進(jìn)行了彎曲工況和彎扭工況下的6109型城市客車(chē)的車(chē)身骨架的應(yīng)力與形變的測(cè)量實(shí)驗(yàn)。
這次實(shí)驗(yàn)的目的在于測(cè)量車(chē)身骨架上不同測(cè)點(diǎn)在不同工況下的應(yīng)力值,了解不同工況下車(chē)身的應(yīng)力分布情況;對(duì)車(chē)身的強(qiáng)度和剛度進(jìn)行分析,考察車(chē)身結(jié)構(gòu)設(shè)計(jì)的合理性,同時(shí)驗(yàn)證所建立的有限元模型是否準(zhǔn)確、是否客觀的反應(yīng)了客車(chē)骨架的實(shí)際情況,為車(chē)身骨架結(jié)構(gòu)的優(yōu)化和輕量化設(shè)計(jì)提供可靠依據(jù)。
對(duì)本次實(shí)驗(yàn)的結(jié)果,各個(gè)工況下車(chē)架的整體變形量都比較小,應(yīng)力值均未超過(guò)材料的屈服極限,表明車(chē)身結(jié)構(gòu)強(qiáng)度和剛度有較大的余量,可通過(guò)這些余量進(jìn)行輕量化設(shè)計(jì);對(duì)比分析彎曲工況下實(shí)驗(yàn)結(jié)果和有限元計(jì)算的結(jié)果,發(fā)現(xiàn)有限元模型能夠比較客觀的反應(yīng)實(shí)際的受力情況,驗(yàn)證了有限元模型的準(zhǔn)確性。
關(guān)鍵詞:客車(chē)車(chē)身骨架結(jié)構(gòu); 剛度和應(yīng)變?cè)囼?yàn); 結(jié)構(gòu)分析; 輕量化。
Bus body skeleton strain and stiffness experiment
Abstract:Facing the rapid development of the economy and technology ,the safety, economical and environmental of vehicle has been aroused widespread concern. So we choose bus which is essential for our daily life , combining the test and research data at home and abroad related to type 6109 city bus body skeleton of some experiments.
This article is on the basis of GB/T 6792-2009 "bus frame stress and deformation measurement method" and the static stress measurement experimental standard. We has measured the force and deformation about the body skeleton of 6019 city bus under the working conditions of bending and torsion in the assembly shop of the company.
The aims of the experiment are as follows: first, measurement the different values of the bus body skeleton under different work conditions, to understand the situation of the stress distribution under different conditions. Second, analysis the strength and stiffness of the bus body, consider about the reasonableness of the body structure design, and
at the same time test whether the finite element model was established right or not , whether objectively reflect the actual situation of the bus frame, and provide a reliable basis for the optimization of body structure and lightweight design.
The results of this experiment, each case frame the whole deformation are relatively small, the stress value was less than the yield limit of material, show that the strength and stiffness of the structure has a larger allowance, through these allowances we can has a lightweight design. Analysis of the experimental results of bending loads and finite element calculation results, that the finite element model can objectively reflect the actual stress state, to verify the accuracy of the finite element model.
Keywords: bus body frame structure; stiffness and strain test; structure analysis; lightweight