本文選題：離心壓縮機(jī) + 流固耦合　； 參考：《合肥工業(yè)大學(xué)》2014年碩士論文

【摘要】：再制造與傳統(tǒng)制造相比具有諸多明顯優(yōu)勢，研究再制造的關(guān)鍵科學(xué)問題，契合國家可持續(xù)發(fā)展的迫切需求、符合國家的重大戰(zhàn)略目標(biāo)。離心壓縮機(jī)機(jī)組是天然氣輸送管道的核心設(shè)備，是保障西氣東輸能源大動脈安全可靠運(yùn)行的關(guān)鍵，大型離心壓縮機(jī)在長期服役過程中由于高周疲勞、沖蝕、腐蝕等原因，易導(dǎo)致壓縮機(jī)葉輪失效而需要進(jìn)行再制造。工作中的離心壓縮機(jī)葉輪往往由于長期在外場作用下產(chǎn)生一系列變化產(chǎn)生變性層，其性能控制是再制造無損清洗與毛坯復(fù)原的先行條件，，是再制造整體工藝不可或缺的一部分。對壓縮機(jī)葉輪典型服役環(huán)境進(jìn)行數(shù)值模擬了解變性層的外場作用是研究再制造毛坯變性層的前提。然而對單一物理場的模擬已經(jīng)很難滿足葉輪機(jī)械數(shù)值模擬準(zhǔn)確性的要求，故采取多場耦合的分析方法。 本文選擇沈陽鼓風(fēng)機(jī)集團(tuán)所生產(chǎn)的大型長輸管線壓縮機(jī)作為研究對象，運(yùn)用大型有限元分析軟件ANSYS的ANSYS Workbench Environment(AWE)進(jìn)行了壓縮機(jī)核心部件葉輪葉片的流固耦合、熱-結(jié)構(gòu)耦合問題的數(shù)值模擬與分析，并對模型選取出口流量分別為9.5kg/s、10.0kg/s、10.5kg/s、11.0kg/s和11.5kg/s進(jìn)行數(shù)值模擬，揭示了全工況下葉輪性能和流場流動情況，得出葉輪變性層典型服役環(huán)境下的溫度場與載荷場，為再制造毛坯變性層形成機(jī)理制備實驗研究提供了相應(yīng)的數(shù)據(jù)，并且對提高壓縮機(jī)葉輪性能、結(jié)構(gòu)強(qiáng)度，增強(qiáng)整機(jī)運(yùn)行的可靠性與安全性，延長工作壽命有著一定意義。
[Abstract]:Compared with traditional manufacturing, remanufacturing has many obvious advantages. To study the key scientific problems of remanufacturing accords with the urgent need of national sustainable development and accords with the great strategic goal of the country. The centrifugal compressor unit is the core equipment of the natural gas pipeline, and the key to ensure the safe and reliable operation of the energy artery in the west to east gas transmission. During the long service of the large centrifugal compressor, due to high cycle fatigue, erosion, corrosion and other reasons, It is easy to cause compressor impeller failure and need to be remanufactured. The centrifugal compressor impellers often produce a series of denatured layers due to a series of changes under the action of external field for a long time. The performance control of centrifugal compressor impellers is the leading condition for non-destructive cleaning and blank restoration in remanufacturing, and it is an indispensable part of the whole remanufacturing process. Numerical simulation of typical service environment of compressor impeller is the premise of studying the remanufacture of denatured layer. However, the simulation of a single physical field is difficult to meet the requirements of the accuracy of the numerical simulation of impeller machinery, so the multi-field coupling analysis method is adopted. In this paper, the large-scale long-distance pipeline compressor produced by Shenyang Blower Group is chosen as the research object, and the flow and solid coupling of impeller blade, the core component of the compressor, is carried out by using ANSYS Workbench Environment awe of the large-scale finite element analysis software ANSYS. The numerical simulation and analysis of thermal-structural coupling problem are carried out, and the flow rate of the impeller is 9.5 kg / s ~ 10.0 kg / s ~ (10. 5) kg / s and 11.5kg/s, respectively. The results show that the impeller performance and flow field flow under full working conditions are investigated. The temperature field and load field of the impeller denatured layer in typical service environment are obtained, which provides the corresponding data for the experimental study on the mechanism of the formation of the denatured layer in the remanufacturing of the blank, and it also improves the performance and the structural strength of the compressor impeller. It is significant to enhance the reliability and safety of the whole machine and prolong its working life.
【學(xué)位授予單位】：合肥工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TH452

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 徐濱士;;綠色再制造工程的發(fā)展現(xiàn)狀和未來展望[J];中國工程科學(xué);2011年01期

2 邢京堂,鄭兆昌;基于彈性動力學(xué)變分原理的模態(tài)綜合法研究[J];固體力學(xué)學(xué)報;1983年02期

3 邢京堂;考慮自由面線性波的流-固耦合動力分析的兩個變分公式[J];航空學(xué)報;1988年11期

4 邢京堂;線性流固耦合動力分析程序FSIAP92簡介[J];航空學(xué)報;1992年09期

5 王征;吳虎;賈海軍;;流固耦合力學(xué)的數(shù)值研究方法的發(fā)展及軟件應(yīng)用概述[J];機(jī)床與液壓;2008年04期

6 徐濱士;董世運(yùn);朱勝;史佩京;;再制造成形技術(shù)發(fā)展及展望[J];機(jī)械工程學(xué)報;2012年15期

7 弓三偉;鄒正平;楊振亞;劉火星;;汽輪機(jī)末級葉片流固耦合數(shù)值模擬[J];熱能動力工程;2009年01期

8 胡海昌;論彈性體力學(xué)與受范性體力學(xué)中的一般變分原理[J];物理學(xué)報;1954年03期

9 徐昭光,徐志剛,韓立朝;用流體非協(xié)調(diào)元分析流體結(jié)構(gòu)耦合問題[J];中國農(nóng)村水利水電;2001年01期

10 王玲玲;秦偉;趙爽;;國家超級工程——西氣東輸裝備國產(chǎn)化之路[J];裝備制造;2012年12期

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