汽車盤式制動(dòng)器結(jié)構(gòu)優(yōu)化設(shè)計(jì)（本科畢業(yè)論文設(shè)計(jì)）.doc
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汽車盤式制動(dòng)器結(jié)構(gòu)優(yōu)化設(shè)計(jì)（本科畢業(yè)論文設(shè)計(jì)）,摘要如何應(yīng)用現(xiàn)代化的設(shè)計(jì)制造手段，設(shè)計(jì)生產(chǎn)出性能優(yōu)異、成本合理的盤式制動(dòng)器一直是各大汽車公司和專業(yè)生產(chǎn)廠家所關(guān)注的問(wèn)題之一。隨著參數(shù)化建模和優(yōu)化設(shè)計(jì)技術(shù)的日益成熟，參數(shù)的優(yōu)化設(shè)計(jì)方法在工程中的應(yīng)用越來(lái)越廣泛，也為盤式制動(dòng)器的快速和精益設(shè)計(jì)提供了現(xiàn)代化的設(shè)計(jì)方法。然而，制動(dòng)器設(shè)計(jì)模型的日益復(fù)雜化，使得應(yīng)用傳統(tǒng)優(yōu)化方法進(jìn)行...
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摘 要
如何應(yīng)用現(xiàn)代化的設(shè)計(jì)制造手段，設(shè)計(jì)生產(chǎn)出性能優(yōu)異、成本合理的盤式制動(dòng)器一直是各大汽車公司和專業(yè)生產(chǎn)廠家所關(guān)注的問(wèn)題之一。
隨著參數(shù)化建模和優(yōu)化設(shè)計(jì)技術(shù)的日益成熟，參數(shù)的優(yōu)化設(shè)計(jì)方法在工程中的應(yīng)用越來(lái)越廣泛，也為盤式制動(dòng)器的快速和精益設(shè)計(jì)提供了現(xiàn)代化的設(shè)計(jì)方法。然而，制動(dòng)器設(shè)計(jì)模型的日益復(fù)雜化，使得應(yīng)用傳統(tǒng)優(yōu)化方法進(jìn)行參數(shù)優(yōu)化設(shè)計(jì)出現(xiàn)了一定難度。隨著計(jì)算機(jī)軟硬件并行化的方向趨勢(shì)，MATLAB優(yōu)化工具箱在工程優(yōu)化領(lǐng)域顯現(xiàn)出一定優(yōu)勢(shì)，為制動(dòng)器的參數(shù)優(yōu)化設(shè)計(jì)提供了新的方法。
本設(shè)計(jì)是針對(duì)盤式制動(dòng)器進(jìn)行的優(yōu)化設(shè)計(jì)。通過(guò)摩擦片的中心圓半徑，摩擦片直徑，活塞直徑，制動(dòng)盤厚度，油缸內(nèi)的油壓，制動(dòng)盤的直徑等數(shù)值對(duì)盤式制動(dòng)器的影響來(lái)進(jìn)行優(yōu)化設(shè)計(jì)。通過(guò)以上設(shè)計(jì)變量對(duì)制動(dòng)器的性能及結(jié)構(gòu)安排的合理性，以及制動(dòng)力矩、制動(dòng)時(shí)間、制動(dòng)盤的厚度為優(yōu)化設(shè)計(jì)的目標(biāo)，來(lái)限定約束條件。通過(guò)以上優(yōu)化設(shè)計(jì)可以得出盤式制動(dòng)器較合理的尺寸。
關(guān)鍵詞：盤式制動(dòng)器，優(yōu)化設(shè)計(jì)，Matlab
ABSTRACT
How to design high quality and cheep disc brake based on modern design and manufacture technology is always the major problem concerned by all automobile factories and professional manufactories.
While designing new brakes,the internal manufactories generally adjust the parameters by experience base on the known drawing of brake.As to the recurrence of calculation and the complexity of brake model,the process of thedesign can be only repeated in limited times manually,it results the parameters are rough.With the development of Parametric Modeling and Structural Optimization,the Parametric Optimization has been used widely in the engineering,and provided modern method to design automobile brake rapidly and delicately.However,as the brake model become complex gradually,the traditionalalgorithms make the Parametric Optimization more and more hardly.Fortunately,the parallelization trend of computer hardware and software brings us the parallel algorithm,such as MATLAB,and it provide new selection of Parametric Optimization Algorithm used in brake design.
This design is a optimized plan for disc brake .It optimizes the design though the influence of the radius of center circle of friction sheet, the diameter of friction sheet, the diameter of piston, the deep of dish brake, the oil pressure in oil jar, the diameter of disc drake and so on .It limits the condition of restrain by the design variable influent the function of disc brake, reasonable of the plan of structure, and the time of limitation, the deep of disc brake as the aim of optimized plan. We can conclude the reasonable dimension of disc brake though the optimized design of the about.
Key words： Disc brake, Optimum design, Matlab
目 錄
中文摘要 Ⅰ
ABSTRACT Ⅱ
1緒論 1
1.1 盤式制動(dòng)器參數(shù)優(yōu)化的意義 1
1.2 制動(dòng)系概述 1
1.3 優(yōu)化設(shè)計(jì)概述 2
1.3.1 優(yōu)化設(shè)計(jì)與傳統(tǒng)設(shè)計(jì)的比較 2
1.3.2 我國(guó)機(jī)械優(yōu)化設(shè)計(jì)的歷史與發(fā)展現(xiàn)狀………………………………………………2
1.3.3 機(jī)械優(yōu)化設(shè)計(jì)的一般過(guò)程……………………………………………………………3
2 盤式制動(dòng)器簡(jiǎn)介 5
2.1 盤式制動(dòng)器的工作原理……………………………………………………………………5.
2.2 盤式制動(dòng)器的優(yōu)越性………………………………………………………………………6
2.3盤式制動(dòng)器應(yīng)用現(xiàn)狀……………………………………………………………………….6
2.4 盤式制動(dòng)器的發(fā)展趨勢(shì)……………………………………………………………………7
3 優(yōu)化模型的建立…………………………………………………………………9
3.1 多目標(biāo)優(yōu)化方法簡(jiǎn)介………………………………………………………………………9
3.2模型假設(shè)……………………………………………………………………………………10
3.3設(shè)計(jì)變量的選取……………………………………………………………………………10
3.4 目標(biāo)函數(shù)的選取與構(gòu)造………………………………………………………………….11
3.4.1 制動(dòng)力矩………………………………………………………………………………11
3.4.2制動(dòng)時(shí)間……………………………………………………………………………….13
3.4.3 制動(dòng)盤厚度……………………………………………………………………………14
3.5 約束條件的選取……………………………………………………………………………15
3.6 數(shù)學(xué)模型的建立………………………………………………………………………….16
4 MATLAB優(yōu)化設(shè)計(jì)計(jì)算…………………………………………………………18
4.1 MATLAB及其優(yōu)化工具箱簡(jiǎn)介………………………………………………………………18
4.2 非線性約束問(wèn)題的求解………………………………………………………………… 19
4.2.1 MATLAB默認(rèn)的非線性約束問(wèn)題的形式………………………………………………19
4.2.2 fmincon函數(shù)的介紹…………………………………………………………………20
4.3 fmincon在盤式制動(dòng)器優(yōu)化問(wèn)題的應(yīng)用…………………………………………………21
4.4 優(yōu)化前后比較、結(jié)果圓整及驗(yàn)算…………………………………………………………23
5 結(jié)論 25
致謝………………………………………………………………………26
參考文獻(xiàn) 27
如何應(yīng)用現(xiàn)代化的設(shè)計(jì)制造手段，設(shè)計(jì)生產(chǎn)出性能優(yōu)異、成本合理的盤式制動(dòng)器一直是各大汽車公司和專業(yè)生產(chǎn)廠家所關(guān)注的問(wèn)題之一。
隨著參數(shù)化建模和優(yōu)化設(shè)計(jì)技術(shù)的日益成熟，參數(shù)的優(yōu)化設(shè)計(jì)方法在工程中的應(yīng)用越來(lái)越廣泛，也為盤式制動(dòng)器的快速和精益設(shè)計(jì)提供了現(xiàn)代化的設(shè)計(jì)方法。然而，制動(dòng)器設(shè)計(jì)模型的日益復(fù)雜化，使得應(yīng)用傳統(tǒng)優(yōu)化方法進(jìn)行參數(shù)優(yōu)化設(shè)計(jì)出現(xiàn)了一定難度。隨著計(jì)算機(jī)軟硬件并行化的方向趨勢(shì)，MATLAB優(yōu)化工具箱在工程優(yōu)化領(lǐng)域顯現(xiàn)出一定優(yōu)勢(shì)，為制動(dòng)器的參數(shù)優(yōu)化設(shè)計(jì)提供了新的方法。
本設(shè)計(jì)是針對(duì)盤式制動(dòng)器進(jìn)行的優(yōu)化設(shè)計(jì)。通過(guò)摩擦片的中心圓半徑，摩擦片直徑，活塞直徑，制動(dòng)盤厚度，油缸內(nèi)的油壓，制動(dòng)盤的直徑等數(shù)值對(duì)盤式制動(dòng)器的影響來(lái)進(jìn)行優(yōu)化設(shè)計(jì)。通過(guò)以上設(shè)計(jì)變量對(duì)制動(dòng)器的性能及結(jié)構(gòu)安排的合理性，以及制動(dòng)力矩、制動(dòng)時(shí)間、制動(dòng)盤的厚度為優(yōu)化設(shè)計(jì)的目標(biāo)，來(lái)限定約束條件。通過(guò)以上優(yōu)化設(shè)計(jì)可以得出盤式制動(dòng)器較合理的尺寸。
關(guān)鍵詞：盤式制動(dòng)器，優(yōu)化設(shè)計(jì)，Matlab
ABSTRACT
How to design high quality and cheep disc brake based on modern design and manufacture technology is always the major problem concerned by all automobile factories and professional manufactories.
While designing new brakes,the internal manufactories generally adjust the parameters by experience base on the known drawing of brake.As to the recurrence of calculation and the complexity of brake model,the process of thedesign can be only repeated in limited times manually,it results the parameters are rough.With the development of Parametric Modeling and Structural Optimization,the Parametric Optimization has been used widely in the engineering,and provided modern method to design automobile brake rapidly and delicately.However,as the brake model become complex gradually,the traditionalalgorithms make the Parametric Optimization more and more hardly.Fortunately,the parallelization trend of computer hardware and software brings us the parallel algorithm,such as MATLAB,and it provide new selection of Parametric Optimization Algorithm used in brake design.
This design is a optimized plan for disc brake .It optimizes the design though the influence of the radius of center circle of friction sheet, the diameter of friction sheet, the diameter of piston, the deep of dish brake, the oil pressure in oil jar, the diameter of disc drake and so on .It limits the condition of restrain by the design variable influent the function of disc brake, reasonable of the plan of structure, and the time of limitation, the deep of disc brake as the aim of optimized plan. We can conclude the reasonable dimension of disc brake though the optimized design of the about.
Key words： Disc brake, Optimum design, Matlab
目 錄
中文摘要 Ⅰ
ABSTRACT Ⅱ
1緒論 1
1.1 盤式制動(dòng)器參數(shù)優(yōu)化的意義 1
1.2 制動(dòng)系概述 1
1.3 優(yōu)化設(shè)計(jì)概述 2
1.3.1 優(yōu)化設(shè)計(jì)與傳統(tǒng)設(shè)計(jì)的比較 2
1.3.2 我國(guó)機(jī)械優(yōu)化設(shè)計(jì)的歷史與發(fā)展現(xiàn)狀………………………………………………2
1.3.3 機(jī)械優(yōu)化設(shè)計(jì)的一般過(guò)程……………………………………………………………3
2 盤式制動(dòng)器簡(jiǎn)介 5
2.1 盤式制動(dòng)器的工作原理……………………………………………………………………5.
2.2 盤式制動(dòng)器的優(yōu)越性………………………………………………………………………6
2.3盤式制動(dòng)器應(yīng)用現(xiàn)狀……………………………………………………………………….6
2.4 盤式制動(dòng)器的發(fā)展趨勢(shì)……………………………………………………………………7
3 優(yōu)化模型的建立…………………………………………………………………9
3.1 多目標(biāo)優(yōu)化方法簡(jiǎn)介………………………………………………………………………9
3.2模型假設(shè)……………………………………………………………………………………10
3.3設(shè)計(jì)變量的選取……………………………………………………………………………10
3.4 目標(biāo)函數(shù)的選取與構(gòu)造………………………………………………………………….11
3.4.1 制動(dòng)力矩………………………………………………………………………………11
3.4.2制動(dòng)時(shí)間……………………………………………………………………………….13
3.4.3 制動(dòng)盤厚度……………………………………………………………………………14
3.5 約束條件的選取……………………………………………………………………………15
3.6 數(shù)學(xué)模型的建立………………………………………………………………………….16
4 MATLAB優(yōu)化設(shè)計(jì)計(jì)算…………………………………………………………18
4.1 MATLAB及其優(yōu)化工具箱簡(jiǎn)介………………………………………………………………18
4.2 非線性約束問(wèn)題的求解………………………………………………………………… 19
4.2.1 MATLAB默認(rèn)的非線性約束問(wèn)題的形式………………………………………………19
4.2.2 fmincon函數(shù)的介紹…………………………………………………………………20
4.3 fmincon在盤式制動(dòng)器優(yōu)化問(wèn)題的應(yīng)用…………………………………………………21
4.4 優(yōu)化前后比較、結(jié)果圓整及驗(yàn)算…………………………………………………………23
5 結(jié)論 25
致謝………………………………………………………………………26
參考文獻(xiàn) 27
