關(guān)于實(shí)心輪胎的ANSYS有限元分析的完整畢業(yè)設(shè)計(jì)，包括任務(wù)書(shū)，開(kāi)題報(bào)告，說(shuō)明書(shū)，答辯PPT。

摘 要
　　　隨著汽車(chē)工業(yè)的迅速發(fā)展，對(duì)輪胎的性能提出越來(lái)越高的要求。由于聚氨酯胎在各方面表現(xiàn)出優(yōu)良的性能，其代替橡膠輪胎是世界輪胎工業(yè)的發(fā)展方向。其中，聚氨酯實(shí)心輪胎適用于低速重載的環(huán)境，廣泛應(yīng)用于各種工業(yè)車(chē)輛、建筑機(jī)械車(chē)輛、港口機(jī)場(chǎng)的拖掛車(chē)輛等，但是由于導(dǎo)熱性差，易產(chǎn)生熱破壞。所以，研究聚氨酯實(shí)心輪胎內(nèi)部溫度場(chǎng)的變化規(guī)律，找出輪胎溫升的影響因素，對(duì)輪胎設(shè)計(jì)和研究具有重要的參考價(jià)值。
　　　本文應(yīng)用大型有限元分析程序ANSYS，通過(guò)適當(dāng)簡(jiǎn)化處理，建立了聚氨酯實(shí)心輪胎在滾動(dòng)狀態(tài)下的力場(chǎng)模型，通過(guò)計(jì)算節(jié)點(diǎn)生熱率再作為負(fù)載導(dǎo)入到溫度場(chǎng)有限元模型中，進(jìn)行實(shí)心輪胎的溫升有限元計(jì)算，得到溫升規(guī)律并進(jìn)行分析。結(jié)果發(fā)現(xiàn)，隨速度的增加，徑向應(yīng)力應(yīng)變減小，隨厚度的增加，徑向應(yīng)力減小，應(yīng)變?cè)龃?，隨著載荷的增加，徑向應(yīng)力應(yīng)變均增大；溫度場(chǎng)最高溫度在胎心部位，且隨著速度，胎厚，載荷的增加而增加。
　　　
關(guān)鍵詞：實(shí)心輪胎，力場(chǎng)，溫度場(chǎng)，有限元分析
　　　
　　　Finite element analysis in PU solid tire
　　　Abstract
　　　  Tire’ service performance is required more and more severe along with speedy development of automobile industry. Polyurethane (PU) tire substitute for rubber tire due to the material’s better performance is increasingly a trend. Polyurethane solid tires apply to low speed and heavy environment such as industrial and architectural trucks or gun towing truck. However, as a result of poor thermal conductivity, this kind of tires is vulnerable to thermal damage. So, research of PU solid tire inner temperature field changes, finding out the influencing factors of temperature rising of tire, has important reference value to tire design and research.
　　　In this paper, finite element models for the force field of polyurethane solid tires in rolling state was established through appropriate simplified by ANSYS. Through the calculation of heat generate rate of node introduced into the finite element model of temperature field as the load, temperature rise for solid tire finite element can be calculated and we can analysis the temperature regularity. It was found, with increased speed, radial stress strain decreases; With the increasing of the thickness, the radial stress decreases and the radial strain increases; With the increasing of load, radial stress and radial strain increases. The maximum temperature produced in the fetal position, and increasing with the speed, tire thickness, load increases.
　　　
　　　Keyword: Solid tires; Force field; Temperature field; Finite element analysis
　　　
　　　
　　    

目   錄
1　緒論 1
1.1　引言 1
1.2　PU實(shí)心輪胎的優(yōu)良性能 1
1.3　PU實(shí)心輪胎的研究進(jìn)展 2
1.4　PU實(shí)心輪胎存在的主要問(wèn)題 3
1.5　ANSYS軟件簡(jiǎn)介 3
1.6　國(guó)內(nèi)外運(yùn)用有限元方法對(duì)汽車(chē)輪胎的研究概況 4
1.7　本文研究?jī)?nèi)容和意義 6
2　聚氨酯實(shí)心輪胎的有限元模擬 7
2.1　聚氨酯實(shí)心輪胎有限元模擬的關(guān)鍵技術(shù) 7
2.1.1　單元模型的選取 7
2.1.2　材料模型 9
2.1.3　幾何模型 10
2.1.4　單元生成 10
2.1.5　有限元約束加載與求解 10
2.1.6　實(shí)心輪胎生熱率的計(jì)算 11
2.1.7　邊界條件的確定 12
2.1.8  實(shí)心輪胎溫度場(chǎng)有限元模型的建立 12
2.2　聚氨酯實(shí)心輪胎的有限元模擬過(guò)程 13
2.2.1　聚氨酯實(shí)心輪胎應(yīng)力場(chǎng)的有限元模擬 13
2.2.2　聚氨酯實(shí)心輪胎溫度場(chǎng)的有限元模擬 18
3　結(jié)果與分析 21
3.1　應(yīng)力場(chǎng)模擬結(jié)果及分析 21
3.2　溫度場(chǎng)模擬結(jié)果與分析 26
4　總結(jié) 33
參考文獻(xiàn) 34
致謝 37