發(fā)布時間：2017-12-28 14:05

  本文關(guān)鍵詞：機(jī)電集成壓電諧波傳動系統(tǒng)研究　出處：《燕山大學(xué)》2016年博士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 機(jī)電集成 壓電諧波傳動 輸出轉(zhuǎn)矩 自由振動 固有頻率 受迫振動 非線性動力學(xué) 混沌振動

【摘要】：機(jī)電集成壓電諧波傳動系統(tǒng)是一個集壓電驅(qū)動、諧波傳動和活齒傳動于一體的新型傳動裝置,該傳動系統(tǒng)克服了傳統(tǒng)摩擦式壓電電機(jī)易磨損、壽命短以及非接觸式壓電電機(jī)輸出轉(zhuǎn)矩小的缺點(diǎn),具有響應(yīng)速度快、壽命長、低速大轉(zhuǎn)矩、無電磁干擾等優(yōu)點(diǎn),在航空航天、生物醫(yī)學(xué)、精密定位和微型機(jī)器人等尖端技術(shù)領(lǐng)域具有廣泛的應(yīng)用前景。本文分析了機(jī)電集成壓電諧波傳動系統(tǒng)的工作原理。建立了該種傳動系統(tǒng)的機(jī)電耦合靜力學(xué)方程,分析了活齒傳動系統(tǒng)的工作過程及受力隨轉(zhuǎn)角的變化規(guī)律以及系統(tǒng)輸出轉(zhuǎn)矩隨電壓等參數(shù)的變化規(guī)律。研究發(fā)現(xiàn):輸出轉(zhuǎn)矩以一特定角度為周期發(fā)生周期性波動。在壓電學(xué)、連續(xù)體振動理論和離散體振動理論的基礎(chǔ)上,建立了機(jī)電集成壓電諧波傳動系統(tǒng)機(jī)電耦合動力學(xué)模型,推導(dǎo)了機(jī)電耦合自由振動方程,求解了系統(tǒng)的固有頻率和模態(tài)振型。揭示了系統(tǒng)參數(shù)對耦合固有頻率的影響規(guī)律。分析了不同模態(tài)下系統(tǒng)耦合對固有頻率的影響規(guī)律。研究發(fā)現(xiàn):系統(tǒng)耦合使得驅(qū)動部分相近模態(tài)固有頻率和傳動部分全振動模態(tài)下的固有頻率均發(fā)生了變化。針對驅(qū)動部分、傳動部分以及整體耦合三種情況,建立了機(jī)電集成壓電諧波傳動系統(tǒng)在壓電激勵下的受迫振動分析方程組。討論了驅(qū)動參數(shù)和傳動參數(shù)對系統(tǒng)耦合受迫振動的影響規(guī)律。研究發(fā)現(xiàn):驅(qū)動部分參數(shù)和傳動部分參數(shù)對系統(tǒng)受迫振動的影響主要表現(xiàn)在改變受迫振動振幅上�？紤]壓電陶瓷存在的非線性壓電效應(yīng)和活齒嚙合齒數(shù)變化引起的非線性效應(yīng),建立了機(jī)電集成壓電諧波傳動系統(tǒng)驅(qū)動部分和傳動部分的非線性動力學(xué)模型和方程,采用林滋泰德-龐加萊法推導(dǎo)了弱非線性自由振動和接近共振時受迫振動的非線性近似解,采用攝動法推導(dǎo)了遠(yuǎn)離共振時受迫振動的非線性近似解。給出了系統(tǒng)的幅頻特性、位移響應(yīng)及其參數(shù)影響。研究發(fā)現(xiàn):壓電非線性效應(yīng)和嚙合齒數(shù)變化引起的非線性對耦合系統(tǒng)的影響顯著,活齒嚙合齒數(shù)對非線性的影響較大。研究了系統(tǒng)參數(shù)對機(jī)電集成壓電諧波傳動系統(tǒng)混沌振動的影響,給出了參數(shù)變化時系統(tǒng)混沌振動的分岔圖,當(dāng)分岔參數(shù)取恒定值時,通過時域圖、相圖、龐加萊映射圖和功率譜圖判斷了混沌運(yùn)動的發(fā)生情況,揭示了混沌振動產(chǎn)生的條件。設(shè)計并研制了機(jī)電集成壓電諧波傳動系統(tǒng)的樣機(jī),利用測試系統(tǒng)測得在電壓峰峰值為150V時,樣機(jī)的最大轉(zhuǎn)矩為0.383Nm;利用錘擊振動測試系統(tǒng)對樣機(jī)的固有頻率進(jìn)行測試,試驗(yàn)結(jié)果與理論分析最大誤差為12.47%,驗(yàn)證了理論分析的正確性。
[Abstract]:Electromechanical integrated piezoelectric harmonic drive system is a new type of piezoelectric driving transmission, harmonic drive and the oscillating tooth drive in one device, the transmission system overcomes the traditional friction type piezoelectric motor is easy to wear, short life and non contact pressure electric motor output torque small shortcomings, has the advantages of fast response, long life, low speed and high torque, no electromagnetic interference, and has wide application prospect in aerospace, biomedical, precision positioning and micro robots and other cutting-edge technology. The working principle of the electromechanical integrated piezoelectric harmonic drive system is analyzed in this paper. The electromechanical coupling static equation of the transmission system is established, and the working process of the movable teeth transmission system and the variation law of the force with the rotation angle are analyzed, as well as the variation rule of the output torque of the system with voltage and other parameters. It is found that the output torque takes a periodic fluctuation at a particular angle. On the basis of piezoelectricity, continuum vibration theory and dispersion vibration theory, the electromechanical coupling dynamic model of electromechanical integrated piezoelectric harmonic drive system is established, and the electromechanical coupling free vibration equation is derived, and the natural frequencies and mode shapes of the system are solved. The influence of the system parameters on the natural frequency of the coupling is revealed. The influence of the system coupling on the natural frequency under different modes is analyzed. It is found that the system coupling makes the natural frequencies of the driving part of the similar modes and the full vibration modes of the transmission part change. For the three cases of driving part, transmission part and integral coupling, the forced vibration analysis equations of electromechanical integrated piezoelectric harmonic drive system under piezoelectric excitation are established. The influence of driving parameters and transmission parameters on the coupled forced vibration of the system is discussed. It is found that the influence of the driving parameters and the driving parameters on the forced vibration of the system is mainly manifested in the change of the amplitude of the forced vibration. Considering the nonlinear effect caused by piezoelectric ceramics have nonlinear piezoelectric effect and tooth meshing tooth number changes, establish the electromechanical integrated piezoelectric harmonic drive system driven nonlinear dynamics model and equations of part and the transmission part, using linzitaide Poincare method to deduce the weakly nonlinear free vibration and the forced vibration of nonlinear near resonance the approximate solution, the perturbation method is derived from nonlinear forced vibration resonance approximation. The amplitude frequency characteristic, the displacement response and the influence of the parameters are given. It is found that the nonlinearity caused by the nonlinear effect of piezoelectric and the number of mesh teeth has a significant impact on the coupling system. The number of teeth engaged in movable teeth has great influence on the nonlinearity. Study on the influence of system parameters on the chaotic vibration of electromechanical integrated piezoelectric harmonic drive system, the bifurcation diagram of chaotic vibration system is presented. The variation of parameters, when the bifurcation parameter from a constant value, through the time domain diagram, phase diagram, Poincare map and the power spectrum of the chaotic motion of the judgment, reveals the chaotic vibration condition. The prototype design and development of the electromechanical integrated piezoelectric harmonic drive system, the test system is measured at the peak voltage is 150V, the maximum torque of the prototype is 0.383Nm; using hammer vibration test system natural frequencies of the prototype test, analysis of test results and the theoretical error is 12.47%, validate the theory analysis.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2016
【分類號】：TH139

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 賀紅林;肖智勇;廖永林;陶結(jié);;基于H臥板面內(nèi)四足驅(qū)動的平面超聲電機(jī)[J];壓電與聲光;2016年04期

2 姚志遠(yuǎn);李曉牛;李響;耿冉冉;簡月;劉振;代士超;;直線超聲電機(jī)設(shè)計、建模和應(yīng)用的研究進(jìn)展[J];振動.測試與診斷;2016年04期

3 孫向磊;郭麗娜;呂宏偉;;直線超聲波電動機(jī)在精密平臺中應(yīng)用的現(xiàn)狀[J];微特電機(jī);2016年04期

4 李魁;徐鑒;;壓電諧振驅(qū)動三足機(jī)器人的平面運(yùn)動[J];動力學(xué)與控制學(xué)報;2015年06期

5 楊依領(lǐng);傅雷;田埂;婁軍強(qiáng);魏燕定;;集成位置/力傳感器的橋式壓電微夾持器[J];機(jī)器人;2015年06期

6 周霓;羅光兵;蔣浩宏;白勝;;采用壓電作動器的車體振動主動控制仿真研究[J];機(jī)械設(shè)計與制造;2015年10期

7 李霞;張寧;高琳;張三川;;超聲諧波電動機(jī)的設(shè)計與分析[J];微特電機(jī);2015年05期

8 李霞;郭正陽;張偉偉;張三川;;換能器式波發(fā)生器驅(qū)動的壓電諧波電機(jī)設(shè)計與分析[J];微電機(jī);2014年11期

9 張軍;時運(yùn)來;梁大志;趙淳生;;直線超聲電機(jī)驅(qū)動精密二維定位平臺系統(tǒng)[J];中國電機(jī)工程學(xué)報;2014年18期

10 張健滔;李朝東;;三棱柱形直線超聲電機(jī)[J];中國電機(jī)工程學(xué)報;2014年36期

相關(guān)重要報紙文章 前1條

1 沈大雷 ;寇曉潔 ;黃鳴陽;;南航助“嫦娥”完美登月[N];中國教育報;2013年

相關(guān)博士學(xué)位論文 前4條

1 陳西府;摩擦驅(qū)動型非共振壓電疊層直線電機(jī)的研究[D];南京航空航天大學(xué);2014年

2 萬志堅;基于面內(nèi)彎縱復(fù)合模態(tài)的直線超聲電機(jī)研究[D];哈爾濱工業(yè)大學(xué);2014年

3 李懷勇;新型桿式壓電電機(jī)研究[D];燕山大學(xué);2013年

4 邢繼春;旋轉(zhuǎn)慣性壓電電機(jī)研究[D];燕山大學(xué);2012年

，

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