本文選題：臥式振動離心機(jī)　切入點：振動理論　出處：《浙江大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

【摘要】：本文圍繞TWZ-1500臥式振動離心機(jī)產(chǎn)品開發(fā)與動力學(xué)分析展開研究。給出了TWZ-1500臥式振動離心機(jī)的技術(shù)性能,對臥式式振動離心機(jī)的工作原理和物料運動進(jìn)行了分析,重點闡述了臥式振動離心機(jī)的工作原理和運動學(xué)參數(shù)及工藝參數(shù)。設(shè)計了該離心機(jī)的結(jié)構(gòu)并利用三維結(jié)構(gòu)設(shè)計軟件Solidedge建立了整機(jī)三維實體模型。 建立了TWZ-1500臥式振動離心機(jī)的理論振動模型。采用解析方法求解了TWZ-1500臥式振動離心機(jī)受迫簡諧振動,并利用MATLAB編程分析了兩級振動體的不同質(zhì)量比、剛度比、阻尼比對兩級振動體振幅的影響。得出以下結(jié)論：在設(shè)計TWZ-1500臥式振動離心機(jī)時一級振動體與二級振動體的質(zhì)量比應(yīng)取較大值,且應(yīng)該通過增大m1增大質(zhì)量比；剛度比應(yīng)取較大值,且應(yīng)該通過增大k1增大剛度比；阻尼比應(yīng)取較小值,且應(yīng)該通過減小ρ1減小阻尼比,這樣才能使二級振動體的振幅滿足要求而一級振動體的振幅很小。 進(jìn)行了TWZ-1500臥式振動離心機(jī)的動力學(xué)分析。結(jié)合復(fù)雜結(jié)構(gòu)有限元建模時幾何模型簡化、網(wǎng)格劃分、連接關(guān)系建模、約束與載荷建模等相關(guān)內(nèi)容的闡述,建立了TWZ-1500臥式振動離心機(jī)的有限元模型。對TWZ-1500臥式振動離心機(jī)進(jìn)行了模態(tài)分析,得出TWZ-1500臥式振動離心機(jī)的理想工作頻率是24.58HZ。由振動電機(jī)的參數(shù)知,振動電機(jī)激振頻率為24.33HZ,說明振動電機(jī)的選取較為合理。對TWZ-1500臥式振動離心機(jī)進(jìn)行諧振分析,整機(jī)諧振分析結(jié)果表明,其一、二級振動體的振幅與工程樣機(jī)試驗結(jié)果十分吻合,說明理論分析結(jié)果正確,振動值達(dá)到設(shè)計目標(biāo),該機(jī)結(jié)構(gòu)設(shè)計較為合理。
[Abstract]:In this paper, the product development and dynamic analysis of TWZ-1500 horizontal vibration centrifuge are studied. The technical performance of TWZ-1500 horizontal vibration centrifuge is given, and the working principle and material movement of horizontal vibration centrifuge are analyzed. The working principle, kinematics parameters and technological parameters of horizontal vibration centrifuge are expounded in detail. The structure of the centrifuge is designed and the 3D solid model of the machine is established by using 3D structure design software Solidedge. The theoretical vibration model of TWZ-1500 horizontal vibration centrifuge is established, the forced harmonic vibration of TWZ-1500 horizontal vibration centrifuge is solved by analytical method, and the different mass ratio and stiffness ratio of the two stage vibrating body are analyzed by MATLAB programming. The effect of damping ratio on the amplitude of two-stage vibrating body. The following conclusions are drawn: in designing TWZ-1500 horizontal vibration centrifuge, the mass ratio of the first stage vibration body to the second stage vibration body should be larger, and the mass ratio should be increased by increasing M1; The stiffness ratio should be larger, and the stiffness ratio should be increased by increasing k1, and the damping ratio should be smaller, and the damping ratio should be reduced by decreasing 蟻 1. Only in this way, the amplitude of the secondary vibrator can meet the requirements and the amplitude of the first-order vibrator will be very small. The dynamic analysis of TWZ-1500 horizontal vibration centrifuge is carried out, and the related contents such as geometric model simplification, mesh division, connection relation modeling, constraint and load modeling, etc., are described in combination with finite element modeling of complex structures. The finite element model of TWZ-1500 horizontal vibration centrifuge is established. The modal analysis of TWZ-1500 horizontal vibration centrifuge is carried out, and the ideal working frequency of TWZ-1500 horizontal vibration centrifuge is obtained. The vibration frequency of vibration motor is 24.33HZ, which shows that the selection of vibration motor is reasonable. The resonance analysis of TWZ-1500 horizontal vibration centrifuge shows that, first, the amplitude of the second stage vibration body is in good agreement with the experimental results of engineering prototype. It shows that the theoretical analysis result is correct, the vibration value reaches the design goal, and the structure design of the machine is more reasonable.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH113

【引證文獻(xiàn)】

相關(guān)博士學(xué)位論文 前1條

1 葛建立;車載炮動態(tài)非線性有限元仿真研究[D];南京理工大學(xué);2007年

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本文編號：1592572