船用齒輪箱結(jié)構(gòu)強(qiáng)度分析及優(yōu)化(本科畢業(yè)論文設(shè)計(jì)).doc
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船用齒輪箱結(jié)構(gòu)強(qiáng)度分析及優(yōu)化(本科畢業(yè)論文設(shè)計(jì)),摘 要齒輪箱是機(jī)械傳動(dòng)的一個(gè)主要組成部分,在原動(dòng)機(jī)和執(zhí)行機(jī)構(gòu)之間起匹配轉(zhuǎn)速和傳遞轉(zhuǎn)矩的作用。齒輪箱體作為齒輪箱的重要組成部分,其設(shè)計(jì)好壞直接影響傳動(dòng)性能以及制造成本。齒輪箱箱體在實(shí)際工作時(shí)受到彎曲和扭轉(zhuǎn)應(yīng)力作用,受力情況較復(fù)雜,采用傳統(tǒng)方法設(shè)計(jì)齒輪箱箱體時(shí),為了保證齒輪箱...
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船用齒輪箱結(jié)構(gòu)強(qiáng)度分析及優(yōu)化(本科畢業(yè)論文設(shè)計(jì))
摘 要
齒輪箱是機(jī)械傳動(dòng)的一個(gè)主要組成部分,在原動(dòng)機(jī)和執(zhí)行機(jī)構(gòu)之間起匹配轉(zhuǎn)速和傳遞轉(zhuǎn)矩的作用。齒輪箱體作為齒輪箱的重要組成部分,其設(shè)計(jì)好壞直接影響傳動(dòng)性能以及制造成本。
齒輪箱箱體在實(shí)際工作時(shí)受到彎曲和扭轉(zhuǎn)應(yīng)力作用,受力情況較復(fù)雜,采用傳統(tǒng)方法設(shè)計(jì)齒輪箱箱體時(shí),為了保證齒輪箱的強(qiáng)度和結(jié)構(gòu)剛度,設(shè)計(jì)安全系數(shù)的選擇往往偏大,造成材料不必要的浪費(fèi)。采用有限元對(duì)箱體進(jìn)行分析,根據(jù)分析結(jié)果,對(duì)箱體設(shè)計(jì)進(jìn)行優(yōu)化改進(jìn),均衡應(yīng)力場,可能的情況下減輕箱體重量,具有較好的工程實(shí)用價(jià)值。
本文的主要研究工作有:
1) 對(duì)齒輪箱傳動(dòng)系統(tǒng)及結(jié)構(gòu)形式進(jìn)行分析,并運(yùn)用Pro/E軟件建立了箱體的三維實(shí)體模型。
2)對(duì)各工況下箱體承受的載荷進(jìn)行分析計(jì)算。
3) 應(yīng)用有限元軟件對(duì)船用齒輪箱體進(jìn)行強(qiáng)度和位移分析。
4)船用齒輪箱體固有特性分析。
5) 根據(jù)有限元分析結(jié)果,對(duì)箱體進(jìn)行結(jié)構(gòu)優(yōu)化,并對(duì)其進(jìn)行重分析,以確定其優(yōu)化的合理性。
關(guān)鍵詞:齒輪箱箱體,有限元方法,靜力分析,優(yōu)化
Abstract
Gear box is a major component of mechanical transmission, which in the original motives and executive bodies from the match between speed and torque transfer the role. Gearbox gear box as an important part of their design have a direct impact on driving performance and manufacturing costs.
Gear box in the hours actually worked by bending and reverse the stress, stress situation more complex, using the traditional method of design gear box, in order to guarantee the strength and gear box structure stiffness, the choice of design safety factors are often too large, Causing unnecessary waste of materials. Use of finite element analysis of the box, based on an analysis of the results, the enclosure design to optimize improvement, balanced stress field, where possible, reduce the weight box, the project has good practical value.
The main research works are:
1) Carry on analysis to transmission system and structure of the gearbox, and make use of 3D graphics software Pro / E established a 3D model of the gearbox.
2) Analyze to compute box load under each work condition.
3) Application of finite element software for the marine gear box to analyze intensity and displacement.
4) Marine gear box inherent characteristics analysis.
5) According to finite element analysis, optimize the structure of the gearbox, and re- analyze to determine the reasonableness of its optimization.
Key Words: Gear box, the finite element method, static analysis, optimize
目 錄
摘 要 I
ABSTRACT II
1 緒論 1
1.1減速器的發(fā)展現(xiàn)狀 1
1.1.1國內(nèi)減速器的發(fā)展現(xiàn)狀 1
1.1.2國外減速器的發(fā)展現(xiàn)狀 1
1.2減速器箱體的研究現(xiàn)狀及研究趨勢 2
1.3本文研究對(duì)象及意義 4
2 船用齒輪箱傳動(dòng)系統(tǒng)分析及工況計(jì)算 6
2.1船用齒輪箱傳動(dòng)系統(tǒng) 6
2.1.1 船用齒輪箱傳動(dòng)原理 6
2.1.2 船用齒輪箱結(jié)構(gòu)形式及參數(shù) 6
2.2 各工況下箱體載荷分析 7
2.2.1 工況分析 7
2.2.2 載荷計(jì)算 8
2.3 箱體有限元建模 12
2.3.1 Pro/ENGINEER 簡介 12
2.3.2三維實(shí)體模型建立 13
3 箱體結(jié)構(gòu)有限元靜力分析 16
3.1 強(qiáng)度理論 16
3.2 箱體有限元分析 18
3.2.1箱體有限元分析模型 18
3.2.2 箱體載荷施加與約束邊界 19
3.3齒輪箱體有限元計(jì)算結(jié)果與分析 20
4 齒輪箱體有限元模態(tài)分析 23
4.1 模態(tài)分析基礎(chǔ) 23
4.1.1 模態(tài)分析基本思想及原理 23
4.1.2 箱體模態(tài)分析有限元基本方程 23
4.1.3 模態(tài)求解方法介紹 25
4.2箱體有限元模態(tài)計(jì)算結(jié)果及分析 26
4.3 箱體模態(tài)計(jì)算分析 26
5 箱體結(jié)構(gòu)優(yōu)化及有限元重分析 28
6 結(jié)論 30
6.1 工作總結(jié) 30
6.2 展望 30
參考文獻(xiàn) 32
摘 要
齒輪箱是機(jī)械傳動(dòng)的一個(gè)主要組成部分,在原動(dòng)機(jī)和執(zhí)行機(jī)構(gòu)之間起匹配轉(zhuǎn)速和傳遞轉(zhuǎn)矩的作用。齒輪箱體作為齒輪箱的重要組成部分,其設(shè)計(jì)好壞直接影響傳動(dòng)性能以及制造成本。
齒輪箱箱體在實(shí)際工作時(shí)受到彎曲和扭轉(zhuǎn)應(yīng)力作用,受力情況較復(fù)雜,采用傳統(tǒng)方法設(shè)計(jì)齒輪箱箱體時(shí),為了保證齒輪箱的強(qiáng)度和結(jié)構(gòu)剛度,設(shè)計(jì)安全系數(shù)的選擇往往偏大,造成材料不必要的浪費(fèi)。采用有限元對(duì)箱體進(jìn)行分析,根據(jù)分析結(jié)果,對(duì)箱體設(shè)計(jì)進(jìn)行優(yōu)化改進(jìn),均衡應(yīng)力場,可能的情況下減輕箱體重量,具有較好的工程實(shí)用價(jià)值。
本文的主要研究工作有:
1) 對(duì)齒輪箱傳動(dòng)系統(tǒng)及結(jié)構(gòu)形式進(jìn)行分析,并運(yùn)用Pro/E軟件建立了箱體的三維實(shí)體模型。
2)對(duì)各工況下箱體承受的載荷進(jìn)行分析計(jì)算。
3) 應(yīng)用有限元軟件對(duì)船用齒輪箱體進(jìn)行強(qiáng)度和位移分析。
4)船用齒輪箱體固有特性分析。
5) 根據(jù)有限元分析結(jié)果,對(duì)箱體進(jìn)行結(jié)構(gòu)優(yōu)化,并對(duì)其進(jìn)行重分析,以確定其優(yōu)化的合理性。
關(guān)鍵詞:齒輪箱箱體,有限元方法,靜力分析,優(yōu)化
Abstract
Gear box is a major component of mechanical transmission, which in the original motives and executive bodies from the match between speed and torque transfer the role. Gearbox gear box as an important part of their design have a direct impact on driving performance and manufacturing costs.
Gear box in the hours actually worked by bending and reverse the stress, stress situation more complex, using the traditional method of design gear box, in order to guarantee the strength and gear box structure stiffness, the choice of design safety factors are often too large, Causing unnecessary waste of materials. Use of finite element analysis of the box, based on an analysis of the results, the enclosure design to optimize improvement, balanced stress field, where possible, reduce the weight box, the project has good practical value.
The main research works are:
1) Carry on analysis to transmission system and structure of the gearbox, and make use of 3D graphics software Pro / E established a 3D model of the gearbox.
2) Analyze to compute box load under each work condition.
3) Application of finite element software for the marine gear box to analyze intensity and displacement.
4) Marine gear box inherent characteristics analysis.
5) According to finite element analysis, optimize the structure of the gearbox, and re- analyze to determine the reasonableness of its optimization.
Key Words: Gear box, the finite element method, static analysis, optimize
目 錄
摘 要 I
ABSTRACT II
1 緒論 1
1.1減速器的發(fā)展現(xiàn)狀 1
1.1.1國內(nèi)減速器的發(fā)展現(xiàn)狀 1
1.1.2國外減速器的發(fā)展現(xiàn)狀 1
1.2減速器箱體的研究現(xiàn)狀及研究趨勢 2
1.3本文研究對(duì)象及意義 4
2 船用齒輪箱傳動(dòng)系統(tǒng)分析及工況計(jì)算 6
2.1船用齒輪箱傳動(dòng)系統(tǒng) 6
2.1.1 船用齒輪箱傳動(dòng)原理 6
2.1.2 船用齒輪箱結(jié)構(gòu)形式及參數(shù) 6
2.2 各工況下箱體載荷分析 7
2.2.1 工況分析 7
2.2.2 載荷計(jì)算 8
2.3 箱體有限元建模 12
2.3.1 Pro/ENGINEER 簡介 12
2.3.2三維實(shí)體模型建立 13
3 箱體結(jié)構(gòu)有限元靜力分析 16
3.1 強(qiáng)度理論 16
3.2 箱體有限元分析 18
3.2.1箱體有限元分析模型 18
3.2.2 箱體載荷施加與約束邊界 19
3.3齒輪箱體有限元計(jì)算結(jié)果與分析 20
4 齒輪箱體有限元模態(tài)分析 23
4.1 模態(tài)分析基礎(chǔ) 23
4.1.1 模態(tài)分析基本思想及原理 23
4.1.2 箱體模態(tài)分析有限元基本方程 23
4.1.3 模態(tài)求解方法介紹 25
4.2箱體有限元模態(tài)計(jì)算結(jié)果及分析 26
4.3 箱體模態(tài)計(jì)算分析 26
5 箱體結(jié)構(gòu)優(yōu)化及有限元重分析 28
6 結(jié)論 30
6.1 工作總結(jié) 30
6.2 展望 30
參考文獻(xiàn) 32