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  本文選題：對動平衡型立式壓縮機 + 曲柄連桿機構(gòu)��； 參考：《沈陽工業(yè)大學(xué)》2017年碩士論文

【摘要】：隨著改革開放的不斷深入與國民經(jīng)濟的高速增長,作為化肥、石油化工、礦山、機械制造、制冷等許多工業(yè)部門廣泛應(yīng)用的機器之一,往復(fù)式壓縮機占據(jù)著舉足輕重的地位。對動平衡型立式壓縮機作為往復(fù)式壓縮機的一個新型分支,由于其占地面積小、效率高、振動小,被用來為船舶及發(fā)電設(shè)備提供特定壓力的燃料,該型壓縮機越來越受到人們重視。本文以對動平衡型立式壓縮機為研究對象,對其曲柄連桿機構(gòu)進行運動學(xué)與動力學(xué)分析,進而對其零部件進行有限元分析,為該型壓縮機的設(shè)計提供一些參考。首先,在參閱國內(nèi)外相關(guān)文獻基礎(chǔ)上,以熱力學(xué)、運動學(xué)和動力學(xué)理論為基礎(chǔ),研究了對動平衡型立式壓縮機的工作循環(huán)過程以及曲柄連桿機構(gòu)的運動規(guī)律和受力狀況,確定了各構(gòu)件的運動規(guī)律及受載情況,為改型壓縮機的動力學(xué)分析和有限元分析提供依據(jù)。其次,以Creo軟件為支撐,建立壓縮機的曲柄連桿機構(gòu)模型,導(dǎo)入ADAMS軟件,對曲柄連桿機構(gòu)進行運動學(xué)和動力學(xué)分析,得到了活塞的位移、速度和加速度曲線,以及得到了曲柄連桿機構(gòu)的氣體力、總體連桿力變化曲線,并提出減小機構(gòu)不平衡力的方法,然后利用仿真分析結(jié)果論證方法的可行性,為壓縮機的平衡性研究提供參考。最后,結(jié)合該型壓縮機的動力學(xué)分析結(jié)果,對壓縮機的關(guān)鍵運動零部件進行有限元分析,得到了零件的等效應(yīng)力圖和總變形圖,并找到了零件的最大應(yīng)力和最大變形位置,并判定零件的設(shè)計的合理性,為壓縮機零件的設(shè)計提供參考。通過上述研究得出的結(jié)論,可以為對動平衡型立式壓縮機的設(shè)計提供一些有益的參考。
[Abstract]:With the deepening of reform and opening up and the rapid growth of the national economy, as one of the widely used machines in many industrial sectors, such as chemical fertilizer, petrochemical industry, mine, machinery manufacturing, refrigeration and so on, reciprocating compressor occupies a pivotal position. As a new branch of reciprocating compressor, the dynamic balancing vertical compressor is used to provide fuel for ship and power generating equipment under specific pressure because of its small area, high efficiency and small vibration. More and more attention has been paid to this type of compressor. In this paper, the kinematics and dynamics of the crank and connecting rod mechanism of the vertical compressor with dynamic balance are analyzed, and the finite element analysis of its parts is carried out, which provides some references for the design of the compressor. Firstly, based on the theories of thermodynamics, kinematics and dynamics, the working cycle process of the dynamic balancing vertical compressor and the movement law and force state of the crank and connecting rod mechanism are studied on the basis of referring to the relevant literatures at home and abroad, and based on the theory of thermodynamics, kinematics and dynamics. The motion law and loading condition of each component are determined, which provides the basis for dynamic analysis and finite element analysis of modified compressor. Secondly, based on Creo software, the crank and connecting rod mechanism model of compressor is established, and the kinematics and dynamics analysis of crank linkage mechanism is carried out by introducing ADAMS software. The displacement, velocity and acceleration curves of piston are obtained. The change curves of the gas force and the total connecting rod force of the crank and connecting rod mechanism are obtained, and the method of reducing the unbalanced force of the mechanism is put forward, and the feasibility of the method is demonstrated by the simulation analysis result, which provides a reference for the research on the balance of the compressor. Finally, combined with the dynamic analysis results of the compressor, the finite element analysis of the key moving parts of the compressor is carried out, and the equal effect and total deformation diagram of the parts are obtained, and the maximum stress and the maximum deformation position of the parts are found. The rationality of the design of the parts is determined, which provides a reference for the design of the compressor parts. The conclusions obtained from the above research can provide some useful reference for the design of dynamic balance vertical compressor.
【學(xué)位授予單位】：沈陽工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TH45

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相關(guān)期刊論文 前10條

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本文編號：1844130