客車車身骨架應(yīng)變與剛度實驗.doc
約41頁DOC格式手機(jī)打開展開
客車車身骨架應(yīng)變與剛度實驗,1.88萬字自己原創(chuàng)的畢業(yè)論文,已經(jīng)通過校內(nèi)系統(tǒng)檢測,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實驗背景與目的51.2本課題國內(nèi)外研究現(xiàn)狀61.3本課題的主要研究內(nèi)容7第二章車身骨架應(yīng)力與形變實驗82.1 實驗的主要儀器及輔助器材82.2 實驗...
內(nèi)容介紹
此文檔由會員 淘寶大夢 發(fā)布
客車車身骨架應(yīng)變與剛度實驗
1.88萬字
自己原創(chuàng)的畢業(yè)論文,已經(jīng)通過校內(nèi)系統(tǒng)檢測,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實驗背景與目的 5
1.2本課題國內(nèi)外研究現(xiàn)狀 6
1.3本課題的主要研究內(nèi)容 7
第二章 車身骨架應(yīng)力與形變實驗 8
2.1 實驗的主要儀器及輔助器材 8
2.2 實驗對象的選擇與處理 8
2.3實驗方案 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實驗過程的加載方式 20
2.3.6實驗過程的注意點(diǎn) 21
2.4 實驗步驟 22
2.4.1 實驗工況的選擇 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 車身數(shù)據(jù)的處理與結(jié)果分析 226
3.1實驗數(shù)據(jù)的處理 26
3.2實驗數(shù)據(jù)列表 28
3.3實驗結(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車身骨架的簡化 36
4.3 網(wǎng)格的劃分 37
4.4 車身載荷的處理 37
4.5本章小結(jié) 37
總 結(jié) 38
致 謝 39
參考文獻(xiàn) 40
摘要:面對經(jīng)濟(jì)和技術(shù)飛速發(fā)展的今天,汽車的安全性、經(jīng)濟(jì)性和環(huán)保性得到了廣泛的關(guān)注。對于大客車這種日常生活中必不可少的交通工具,本文結(jié)合國內(nèi)外相關(guān)的一些試驗和研究資料對6109型城市客車的車身骨架進(jìn)行了一些實驗。
本文依據(jù)GB/T 6792-2009《客車骨架應(yīng)力與形變測量方法》和靜態(tài)應(yīng)力電測實驗標(biāo)準(zhǔn),在企業(yè)的總裝車間進(jìn)行了彎曲工況和彎扭工況下的6109型城市客車的車身骨架的應(yīng)力與形變的測量實驗。
這次實驗的目的在于測量車身骨架上不同測點(diǎn)在不同工況下的應(yīng)力值,了解不同工況下車身的應(yīng)力分布情況;對車身的強(qiáng)度和剛度進(jìn)行分析,考察車身結(jié)構(gòu)設(shè)計的合理性,同時驗證所建立的有限元模型是否準(zhǔn)確、是否客觀的反應(yīng)了客車骨架的實際情況,為車身骨架結(jié)構(gòu)的優(yōu)化和輕量化設(shè)計提供可靠依據(jù)。
對本次實驗的結(jié)果,各個工況下車架的整體變形量都比較小,應(yīng)力值均未超過材料的屈服極限,表明車身結(jié)構(gòu)強(qiáng)度和剛度有較大的余量,可通過這些余量進(jìn)行輕量化設(shè)計;對比分析彎曲工況下實驗結(jié)果和有限元計算的結(jié)果,發(fā)現(xiàn)有限元模型能夠比較客觀的反應(yīng)實際的受力情況,驗證了有限元模型的準(zhǔn)確性。
關(guān)鍵詞:客車車身骨架結(jié)構(gòu); 剛度和應(yīng)變試驗; 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
1.88萬字
自己原創(chuàng)的畢業(yè)論文,已經(jīng)通過校內(nèi)系統(tǒng)檢測,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實驗背景與目的 5
1.2本課題國內(nèi)外研究現(xiàn)狀 6
1.3本課題的主要研究內(nèi)容 7
第二章 車身骨架應(yīng)力與形變實驗 8
2.1 實驗的主要儀器及輔助器材 8
2.2 實驗對象的選擇與處理 8
2.3實驗方案 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實驗過程的加載方式 20
2.3.6實驗過程的注意點(diǎn) 21
2.4 實驗步驟 22
2.4.1 實驗工況的選擇 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 車身數(shù)據(jù)的處理與結(jié)果分析 226
3.1實驗數(shù)據(jù)的處理 26
3.2實驗數(shù)據(jù)列表 28
3.3實驗結(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車身骨架的簡化 36
4.3 網(wǎng)格的劃分 37
4.4 車身載荷的處理 37
4.5本章小結(jié) 37
總 結(jié) 38
致 謝 39
參考文獻(xiàn) 40
摘要:面對經(jīng)濟(jì)和技術(shù)飛速發(fā)展的今天,汽車的安全性、經(jīng)濟(jì)性和環(huán)保性得到了廣泛的關(guān)注。對于大客車這種日常生活中必不可少的交通工具,本文結(jié)合國內(nèi)外相關(guān)的一些試驗和研究資料對6109型城市客車的車身骨架進(jìn)行了一些實驗。
本文依據(jù)GB/T 6792-2009《客車骨架應(yīng)力與形變測量方法》和靜態(tài)應(yīng)力電測實驗標(biāo)準(zhǔn),在企業(yè)的總裝車間進(jìn)行了彎曲工況和彎扭工況下的6109型城市客車的車身骨架的應(yīng)力與形變的測量實驗。
這次實驗的目的在于測量車身骨架上不同測點(diǎn)在不同工況下的應(yīng)力值,了解不同工況下車身的應(yīng)力分布情況;對車身的強(qiáng)度和剛度進(jìn)行分析,考察車身結(jié)構(gòu)設(shè)計的合理性,同時驗證所建立的有限元模型是否準(zhǔn)確、是否客觀的反應(yīng)了客車骨架的實際情況,為車身骨架結(jié)構(gòu)的優(yōu)化和輕量化設(shè)計提供可靠依據(jù)。
對本次實驗的結(jié)果,各個工況下車架的整體變形量都比較小,應(yīng)力值均未超過材料的屈服極限,表明車身結(jié)構(gòu)強(qiáng)度和剛度有較大的余量,可通過這些余量進(jìn)行輕量化設(shè)計;對比分析彎曲工況下實驗結(jié)果和有限元計算的結(jié)果,發(fā)現(xiàn)有限元模型能夠比較客觀的反應(yīng)實際的受力情況,驗證了有限元模型的準(zhǔn)確性。
關(guān)鍵詞:客車車身骨架結(jié)構(gòu); 剛度和應(yīng)變試驗; 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