本文選題：往復(fù)式壓縮機(jī) + 撞缸故障�。� 參考：《華東理工大學(xué)》2017年碩士論文

【摘要】：基于數(shù)字樣機(jī)的虛擬試驗(yàn)方法近年來(lái)在國(guó)防、船舶、航空航天、汽車(chē)等制造行業(yè)得到了廣泛應(yīng)用。在以計(jì)算機(jī)可視化圖形仿真基礎(chǔ)建立的數(shù)字樣機(jī)上,通過(guò)開(kāi)展虛擬試驗(yàn),并結(jié)合實(shí)物樣機(jī)進(jìn)行試驗(yàn)數(shù)據(jù)校正的方法,具有試驗(yàn)成本低、周期短、試驗(yàn)數(shù)據(jù)重復(fù)性好和數(shù)據(jù)可視化等特點(diǎn),故越來(lái)越受到工程學(xué)界的重視。因此對(duì)該試驗(yàn)方法在工程上的應(yīng)用研究具有重要的學(xué)術(shù)研究意義和重大工程應(yīng)用價(jià)值。上海氯堿化工股份有限公司使用的4M20型往復(fù)式氫氣壓縮機(jī)是燒堿裝置氫氣壓縮單元的關(guān)鍵機(jī)組。兩臺(tái)壓縮機(jī)中的B機(jī)一級(jí)壓縮系統(tǒng)因活塞桿拉伸發(fā)生了多次撞缸故障,對(duì)安全生產(chǎn)造成了嚴(yán)重影響。本課題針對(duì)其撞缸故障進(jìn)行分析,采用數(shù)字樣機(jī)建模方法,開(kāi)展了相關(guān)理論分析和試驗(yàn)測(cè)試工作,尋找故障原因并提出改進(jìn),以確保生產(chǎn)設(shè)備的平穩(wěn)運(yùn)行。本文建立了該壓縮機(jī)的數(shù)字原型樣機(jī)進(jìn)行試驗(yàn),研究中分別采用Solidworks軟件、ADAMS軟件和ANSYS軟件,模擬往復(fù)式壓縮機(jī)在各種工況下的工作形態(tài),對(duì)往復(fù)式壓縮機(jī)一級(jí)壓縮系統(tǒng)進(jìn)行動(dòng)力學(xué)仿真和有限元分析。同時(shí),使用測(cè)試儀器對(duì)活塞桿拉伸段的化學(xué)成分、金相結(jié)構(gòu)和表面狀態(tài)進(jìn)行測(cè)試,并將數(shù)字樣機(jī)測(cè)試的結(jié)果和物理試樣測(cè)試的結(jié)果進(jìn)行對(duì)比分析。將基于數(shù)字樣機(jī)的虛擬試驗(yàn)方法應(yīng)用于該氫氣壓縮機(jī)的故障分析過(guò)程中,可以直觀得到可視化的活塞桿受力工況下的載荷圖譜和應(yīng)力分布圖譜,通過(guò)與物理試樣測(cè)試數(shù)據(jù)對(duì)比,證明得到用于分析活塞桿受力的數(shù)據(jù)是可信真實(shí)的。該試驗(yàn)方法可用于工程故障案例分析,具有實(shí)用可靠和可視化的特點(diǎn)。
[Abstract]:The virtual test method based on digital prototyping has been widely used in defense, ship, aerospace, automobile and other manufacturing industries in recent years. In the digital prototype built on the basis of computer visual graphic simulation, the method of virtual test and test data correction combined with physical prototype has the advantages of low test cost and short period. Because of its good repeatability and visualization, more and more attention has been paid to the test data. Therefore, it is of great academic significance and great engineering application value to study the application of this test method in engineering. The 4M20 reciprocating hydrogen compressor used by Shanghai chlor-alkali chemical co., Ltd is the key unit of hydrogen compression unit of caustic soda plant. The first stage compression system of B machine in the two compressors has suffered many cylinder failures due to piston rod drawing, which has seriously affected the safety of production. Based on the analysis of the cylinder collision fault, the paper uses the digital prototype modeling method, carries out the relevant theoretical analysis and test work, finds out the causes of the failure and puts forward some improvements to ensure the smooth operation of the production equipment. In this paper, the digital prototype of the compressor is established for test. In the study, Solidworks software Adams and ANSYS software are used to simulate the working pattern of reciprocating compressor under various working conditions. The dynamic simulation and finite element analysis of the first stage compression system of reciprocating compressor are carried out. At the same time, the chemical composition, metallographic structure and surface state of the tensile section of the piston rod were measured by means of a test instrument, and the results of the digital prototype test and the physical sample test were compared and analyzed. The virtual test method based on digital prototype is applied to the fault analysis of the hydrogen compressor. The visual load and stress distribution charts of the piston rod under the loading condition can be obtained directly, and compared with the test data of the physical sample. It is proved that the data obtained for the analysis of piston rod force is credible and true. The test method can be used in engineering fault case analysis and has the characteristics of practicality, reliability and visualization.
【學(xué)位授予單位】：華東理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TQ114.2;TQ051.21

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