FSAE電動(dòng)賽車(chē)前懸架結(jié)構(gòu)設(shè)計(jì)與分析【雙橫臂式懸架優(yōu)秀課程畢業(yè)設(shè)計(jì)含5張CAD圖紙帶任務(wù)書(shū)+開(kāi)題報(bào)告+中期報(bào)告+答辯ppt+外文翻譯】-clsj24

FSAE電動(dòng)賽車(chē)前懸架結(jié)構(gòu)設(shè)計(jì)與分析【雙橫臂式懸架】

摘要：本設(shè)計(jì)對(duì)FSAE賽車(chē)前懸架的結(jié)構(gòu)及特點(diǎn)進(jìn)行比較，綜合比對(duì)選取適合的懸架結(jié)構(gòu)形式，最終確立FSAE電動(dòng)賽車(chē)的前懸架采用雙橫臂式懸架結(jié)構(gòu)；根據(jù)賽車(chē)參數(shù)，進(jìn)行了大量的計(jì)算，根據(jù)數(shù)據(jù)確立了前懸架的尺寸，材料，以及懸架部件的選取以及參數(shù)，對(duì)影響安全性的零件，例如橫向穩(wěn)定桿和緩沖塊都有明確的計(jì)算與設(shè)計(jì)，然后進(jìn)行ADAMS建模、優(yōu)化，最終確認(rèn)主銷(xiāo)外傾角，主銷(xiāo)內(nèi)傾角，均滿足設(shè)計(jì)要求。隨之選用 proe軟件對(duì)FSAE前懸架實(shí)施3D圖形的創(chuàng)造；在建立三維模型的過(guò)程中，根據(jù)零件的三維坐標(biāo)，生成三維模型，這樣的精確度高。再后，使用有限元分析軟件ANSYS對(duì)整體結(jié)構(gòu)進(jìn)行靜態(tài)分析和動(dòng)態(tài)分析，在靜態(tài)分析中，均符合設(shè)計(jì)要求，在動(dòng)態(tài)分析中，著重對(duì)在0.5g加速狀態(tài)和0.95g轉(zhuǎn)彎狀態(tài)下進(jìn)行有限元分析，前懸架下控制器在這兩種嚴(yán)格的工況下，所產(chǎn)生的應(yīng)力集中問(wèn)題，和應(yīng)力變形問(wèn)題，對(duì)這兩種問(wèn)題進(jìn)行分析比對(duì)，對(duì)應(yīng)力集中現(xiàn)象，都小于材料的屈服極限，說(shuō)明滿足安全的要求，對(duì)應(yīng)力變形問(wèn)題，也同樣滿足設(shè)計(jì)要求。本次FSAE賽車(chē)的前懸架完全符合設(shè)計(jì)要求。

關(guān)鍵詞：FSAE賽車(chē)；懸架；校核；有限元；

Design and Analysis of Front Suspension Structure

of FSAE Electric Racing

Abstract：This graduation design the structure and characteristics of FSAE car front suspension is used in the comparison, comprehensive than to choose a suitable suspension structure, finally established FSAE electric car front suspension with double wishbone type suspension structure;According to the parameters of car, a large amount of calculation, based on the size of the data to establish the front suspension, materials, and the selection of suspension components and parameters, affecting the safety of spare parts, such as the horizontal stabilizer bar and buffer blocks are clearly calculation and design, then, ADAMS, modeling, optimization and finally confirm the king pin camber Angle, kingpin inclination Angle, meet the design requirements.Then using proe FSAE car front suspension three-dimensional organization simulation model is set up;In the process of establishing three-dimensional model, according to the components of the three-dimensional coordinates, generated 3 d model, the precision is high.Again later, using the finite element analysis software ANSYS static analysis and dynamic analysis was carried out on the whole structure, in static analysis, all comply with the design requirements, in the dynamic analysis, the state of accelerating in 0.5 g and 0.95 g condition in finite element analysis of turning, the front controller in both the strict conditions, the stress concentration problems, and stress deformation problem, the analysis of the two kinds of problems, the stress concentration phenomenon, are less than the yield limit of material, that meet the requirements of safety, the deformation and stress problem, also meet the design requirements.The FSAE car front suspension fully comply with the design requirements.analysis controller.

Key words: FSAE racing; suspension; check; finite element;

目  錄

摘要……………………………………………………………….…………………... I

Abstract…………………………………………………………………...…………II

1.緒論……………………………………………………………….……………..….1

1.1國(guó)內(nèi)研究現(xiàn)狀…………………………………………………….……………….1

1.2國(guó)外研究現(xiàn)狀…………………………………………………….…..………...…2

2. FSAE前懸架的建立………………………………………....………………..……3

2.1 FSAE 賽車(chē)懸架的選擇…………………………………...…………...…………3

2.2前懸架參數(shù)設(shè)計(jì)……………………………………..………...…………...……..4

2.2.1對(duì)平順性影響的各項(xiàng)參數(shù)……………………………………………………...4

2.2.2撓度計(jì)算………………………………………………………………………...5

2.2.3簧載質(zhì)量與非簧載質(zhì)量………………………………………………………...5

2.3螺旋彈簧的設(shè)計(jì)……………………....………………….………….………...….6

2.3.1螺旋彈簧類(lèi)型的選擇…………………………………………………………...6

2.3.2彈簧的關(guān)計(jì)算…………………………………………………………………...7

2.3減振器設(shè)計(jì)……………………………………………………………………….10

2.3.1減振器及其形式的選擇……………………………………………………… .10

2.3.2相對(duì)阻尼系數(shù)……………………………….………………………………….11

2.3.3減振器阻尼系數(shù)的確定………………………………………………………..11

2.3.4最大卸荷力的確定………….………………………………………………….11

2.3.5減振器尺寸的確定……………………………………………………………..12

2.4上、下橫臂長(zhǎng)度的確定………………………………………………………….12

2.5橫向穩(wěn)定桿設(shè)計(jì)………………………...………………………………………..12

2.5.1穩(wěn)定桿直徑計(jì)算………………………………………………………………..13

2.6緩沖塊…………………………………………………...……………………….14

3. 對(duì)FSAE的前懸架進(jìn)行三維建模…………………….…….……………………15

3.1前懸架運(yùn)動(dòng)學(xué)參數(shù)的分析………………………………………...…..……...…17

4.控制臂的有限元分析………………………………..……..…………...…..….…20

4.1有限元法的介紹…………………………..………………………...…………...20

4.2控制臂有限元模型建立………………………….…………………..……….…20

4.2.1幾何模型……………………………….………………………………………20

4.2.2網(wǎng)格劃分及網(wǎng)格質(zhì)量控制…………………………………………………….21

4.2.3材料屬性定義………………………………………………………………...22

4.2.4慣性釋放及模型的約束與加載……………………………………………...22

4.3典型極限工況控制臂結(jié)構(gòu)有限元分析………………………………………...22

4.3.1 0.5g加速工況………………………………………………………………….22

4.3.2 0.95g轉(zhuǎn)向工況……………………………………………………………...…23

5.總結(jié)與展望…………………………………….….………..……………………..25

5.1總結(jié)…………………………………………….……………………...…………25

5.2展望…………………………………………….…………………………...……26

參考文獻(xiàn)…………………………………………….………………………….……27

致謝…………………………………………………..………………………………28

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FSAE電動(dòng)賽車(chē)前懸架結(jié)構(gòu)設(shè)計(jì)與分析

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