PET飲料瓶的有限元分析

機(jī)械設(shè)計(jì)制造及其自動(dòng)化論文，論文編號(hào):JX1222  論文字?jǐn)?shù):15001.頁(yè)數(shù):35

 摘    要
 
 PET材料飲料瓶在全世界市場(chǎng)得到廣泛應(yīng)用，重量輕和牢固結(jié)實(shí)是對(duì)飲料瓶即經(jīng)濟(jì)又實(shí)用的基本要求。傳統(tǒng)方式是開(kāi)模具加工后再測(cè)試強(qiáng)度，如不符合要求再重新進(jìn)行瓶子的結(jié)構(gòu)設(shè)計(jì)，這無(wú)疑增加了生產(chǎn)成本。如瓶體設(shè)計(jì)好后先在計(jì)算機(jī)中對(duì)瓶體進(jìn)行結(jié)構(gòu)力學(xué)分析，反復(fù)修訂后再加工這樣可節(jié)省成本。但目前生產(chǎn)過(guò)程中缺少相應(yīng)的瓶體結(jié)構(gòu)力學(xué)的有限元分析。因此本文在了解PET瓶的發(fā)展前景和其材料特性基礎(chǔ)之上，以PET飲料瓶為研究對(duì)象，應(yīng)用Ansys軟件對(duì)瓶體的強(qiáng)度進(jìn)行計(jì)算。利用非線性有限元分析理論為基礎(chǔ)，對(duì)瓶子采取殼體4節(jié)點(diǎn)塑性181單元為具體研究對(duì)象，在一定的載荷壓力下，進(jìn)行結(jié)構(gòu)穩(wěn)定性分析，最后改變瓶子的相關(guān)主要參數(shù)，得出不同設(shè)計(jì)參數(shù)下的瓶體的結(jié)構(gòu)力學(xué)結(jié)果，對(duì)其進(jìn)行分析比較，最后得到符合瓶體模型的參數(shù)。

關(guān)鍵詞：PET材料 飲料瓶 Ansys 靜態(tài)結(jié)構(gòu)力學(xué)分析

Abstract
 
 The PET material beverage bottle obtains the widespread application in the world market, the weight light and reliable solid has a drink together the glass jar is the economical practical basic request. After the traditional way is opens the mold processing to test the intensity again, if does not conform to the requirement to carry on the jar again the structural design, this increased the production cost without doubt. If after the bottle body designs first carries on the structure mechanics analysis in the computer to the bottle body, after revises the retreatment to be possible repeatedly to save the cost like this.But in at present production process lacks the corresponding bottle body structure mechanics the finite element analysis. Therefore this article in understood the PET bottle above the prospects for development and its materials behavior foundation, take the PET beverage bottle as the object of study, carries on the computation using the Ansys software to the bottle body intensity. Using the non-linear finite element analysis theory is the foundation, adopts the shell 4 node plasticity 181 units to the jar for the concrete object of study, under certain load pressure, carries on the structural stability analysis, finally changes the jar the correlation main parameter, obtains under the different design variable the bottle body structure mechanics result, carries on the analysis comparison to it, finally obtains conforms to the bottle phantom parameter.
 
Key word: PET material  Beverage bottle  Ansys  static state structure mechanics analysis
目  錄
中文摘要 i
英文摘要 ii
目  錄 iii
第 一 章    緒   論 1
1.1研究的背景和意義 1
1.2目前PET飲料瓶的發(fā)展?fàn)顩r 1
1.2.1我國(guó)的發(fā)展現(xiàn)狀 1
1.2.2全球PET的發(fā)展現(xiàn)狀 2
1.3 塑性材料的特性和應(yīng)用 3
1.4 研究的主要方法和主要內(nèi)容 4
第 二 章  PET飲料瓶有限元分析過(guò)程 5
2.1 Ansys軟件介紹 5
2.2 前處理階段 7
2.3 計(jì)算分析階段 13
2.4 后處理階段 14
2.5對(duì)分析結(jié)果的對(duì)比和解釋 23
第 三 章 局部載荷施加分析 26
第 四 章  總 結(jié) 29
參考文獻(xiàn) 30
致 謝 31