【摘要】：復(fù)合材料熱壓罐成型工藝是目前復(fù)合材料制件過程中最主要的成型工藝之一。在實(shí)際生產(chǎn)中,復(fù)合材料構(gòu)件成型后的尺寸往往有較大的偏差,其影響因素很多,如工裝模具的不同結(jié)構(gòu)導(dǎo)致的通氣率不同、模具材料的熱膨脹系數(shù)與復(fù)合材料的熱膨脹系數(shù)之間的不符以及復(fù)合材料成型過程中的內(nèi)部化學(xué)反應(yīng)引起的變形等。目前,解決復(fù)合材料構(gòu)件成型過程中產(chǎn)生的固化變形導(dǎo)致結(jié)構(gòu)件產(chǎn)生較大的裝配誤差的問題,主要采用優(yōu)化熱壓罐成型過程的相關(guān)因素(如:固化溫度、固化時(shí)間、壓強(qiáng)等)和對(duì)模具型面反復(fù)試驗(yàn)修整的方法,不僅延長(zhǎng)了復(fù)合材料產(chǎn)品的生產(chǎn)周期,而且增加了復(fù)合材料的生產(chǎn)制造成本。本文通過有限元數(shù)值模擬的方法,在不同工裝結(jié)構(gòu)形式、不同工裝材質(zhì)下,展開了對(duì)復(fù)合材料構(gòu)件熱壓罐成型工裝變形的研究,揭示了復(fù)合材料構(gòu)件和工裝的溫度場(chǎng)分布及變形規(guī)律。本文基于復(fù)合材料熱壓罐的成型工藝,重點(diǎn)研究工裝結(jié)構(gòu)與模具材質(zhì)對(duì)薄壁復(fù)合材料構(gòu)件及工裝的溫度場(chǎng)分布和變形影響的問題,闡述了復(fù)合材料構(gòu)件在熱壓罐內(nèi)成型工藝原理以及成型過程中的傳熱規(guī)律,利用CATIA三維建模軟件和ABAQUS有限元分析軟件,根據(jù)薄壁復(fù)合材料構(gòu)件和成型工裝的結(jié)構(gòu)特點(diǎn)和材料屬性,建立三維數(shù)值模擬分析模型。預(yù)測(cè)在熱壓罐成型過程中薄壁復(fù)合材料構(gòu)件和工裝的變形規(guī)律,應(yīng)用ABAQUS有限元分析軟件,根據(jù)熱變形有限元分析原理,研究復(fù)合材料部件和模具的溫度場(chǎng)分布和變形問題,實(shí)現(xiàn)了復(fù)合材料熱壓罐成型工裝有限元變形預(yù)測(cè)分析,對(duì)解決薄壁復(fù)合材料結(jié)構(gòu)件熱壓罐成型過程中的固化變形問題有一定的借鑒意義。
[Abstract]:The forming process of composite hot-pressing tank is one of the most important molding processes in the process of composite parts. In practical production, the dimensions of composite components usually have a large deviation after forming, and there are many influencing factors, such as the different structure of tooling and die lead to different ventilation rate, and there are many factors affecting them, such as different structure of tooling and die, which leads to different ventilation rate. The difference between the thermal expansion coefficient of the die material and the thermal expansion coefficient of the composite material and the deformation caused by the internal chemical reaction in the forming process of the composite material. At present, to solve the problem that the curing deformation caused by the forming process of composite components leads to large assembly errors, the main factors of optimizing the forming process of hot-pressing tank (such as curing temperature, curing time, etc.) are adopted to optimize the forming process of hot-pressed tank. Pressure, etc.) and repeated experiments on the mold surface, not only prolong the production cycle of composite materials, but also increase the production cost of composite materials. In this paper, the finite element numerical simulation method is used to study the deformation of the forming tool of the hot pressing tank of the composite material component under the different structure form and the different material of the tool, and the research on the deformation of the hot pressing tank of the composite material component is carried out. The temperature field distribution and deformation law of composite components and tools are revealed. Based on the forming process of composite hot pressing tank, this paper focuses on the influence of tool structure and die material on the temperature field distribution and deformation of thin-walled composite components and tools. The principle of forming process and heat transfer law of composite components in hot-pressing tank are described. The three-dimensional modeling software of CATIA and the finite element analysis software of ABAQUS are used. According to the structural characteristics and material properties of thin-walled composite components and molding tools, a three-dimensional numerical simulation model is established. The deformation law of thin-walled composite components and tooling in the forming process of hot-pressing tank is predicted. The temperature distribution and deformation of composite components and dies are studied by using the finite element analysis software ABAQUS and according to the principle of thermal deformation finite element analysis. The finite element deformation prediction analysis of composite hot-pressing tank is realized, which can be used for reference to solve the problem of solidification deformation in the forming process of thin-walled composite structural parts.
【學(xué)位授予單位】：沈陽(yáng)航空航天大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TB33

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 閆國(guó)良;劉興宇;張潔;;復(fù)合材料垂直安定面整體化加筋壁板設(shè)計(jì)[J];民用飛機(jī)設(shè)計(jì)與研究;2008年01期

2 寇哲君;戴棣;曹正華;;復(fù)合材料結(jié)構(gòu)固化變形預(yù)測(cè)[J];材料工程;2007年S1期

3 張紀(jì)奎;關(guān)志東;酈正能;;熱固性復(fù)合材料固化過程中溫度場(chǎng)的三維有限元分析[J];復(fù)合材料學(xué)報(bào);2006年02期

4 田軍良;全動(dòng)復(fù)合材料水平尾翼主承力壁板熱壓罐成型工藝[J];航空制造技術(shù);2005年09期

5 陳紹杰;淺談復(fù)合材料整體成形技術(shù)[J];航空制造技術(shù);2005年09期

6 陳祥寶;先進(jìn)樹脂基復(fù)合材料擴(kuò)大應(yīng)用的關(guān)鍵[J];高科技纖維與應(yīng)用;2002年06期

7 趙渠森;降低樹脂基碳纖維復(fù)合材料成本的工程途徑[J];中國(guó)工程科學(xué);2001年09期

8 宋璐璐,張佐光,仲偉虹,丁冬梅;模壓樹脂傳遞成型工藝中的樹脂流動(dòng)性研究[J];玻璃鋼/復(fù)合材料;2000年03期

9 孫慧玉;三維編織復(fù)合材料 RTM 工藝和力學(xué)性能[J];材料工程;1998年05期

10 梁國(guó)正，顧媛娟，藍(lán)立文，張明習(xí)，呂勇;用于高性能雷達(dá)罩的樹脂基體的研究[J];宇航材料工藝;1996年06期

相關(guān)博士學(xué)位論文 前1條

1 岳廣全;整體化復(fù)合材料壁板結(jié)構(gòu)固化變形模擬及控制方法研究[D];哈爾濱工業(yè)大學(xué);2010年

相關(guān)碩士學(xué)位論文 前1條

1 邵坤;復(fù)合材料工裝變形分析[D];南京航空航天大學(xué);2009年

，

本文編號(hào)：2461921