本文關鍵詞：大型風力發(fā)電機齒輪箱動力學分析　出處：《沈陽工業(yè)大學》2011年碩士論文　論文類型：學位論文

  更多相關文章： 風力發(fā)電機 齒輪箱 動力學模型 動力學分析

【摘要】：隨著世界清潔能源市場的快速發(fā)展,風能作為無污染、可再生的新能源逐漸成為人們關注和利用的焦點。風力發(fā)電機齒輪箱作為一個重要的機械傳動部件,隨著風力發(fā)電機組的逐漸大型化,維護成本的逐漸提高,對齒輪箱系統(tǒng)的穩(wěn)定性要求也越來越高。由于風力的隨機性特點,葉片對齒輪箱隨機性載荷的作用引起了齒輪箱系統(tǒng)的振動,這些振動導致了齒輪箱傳動系統(tǒng)的疲勞損壞,降低了齒輪箱系統(tǒng)的穩(wěn)定性,增加了維護成本。為了減少由振動引起的齒輪箱系統(tǒng)的故障,提高系統(tǒng)的穩(wěn)定性,需要對齒輪箱傳動系統(tǒng)進行動力學研究。 本文介紹了大型風力發(fā)電機齒輪箱動力學分析的研究發(fā)展狀況和科學重要性。風力發(fā)電機齒輪箱在運行過程中受到動態(tài)載荷的作用而產(chǎn)生振動,引起內(nèi)部構件的疲勞損壞。討論了建立齒輪箱系統(tǒng)動力學模型的關鍵性問題,將風力發(fā)電機齒輪傳動系統(tǒng)分解為三級傳動系統(tǒng),分別為第一級的行星齒輪傳動系統(tǒng)、第二、三級的斜齒圓柱齒輪傳動系統(tǒng)和軸系三個部分,采用集中參數(shù)法,綜合考慮了齒輪的時變的綜合嚙合剛度、綜合嚙合誤差、橫向彎曲振動、扭轉振動、軸向振動等因素的共同作用,建立了行星齒輪、斜齒圓柱齒輪和軸系的動力學模型,從而得到整體齒輪傳動系統(tǒng)的動力學模型,建立了齒輪箱系統(tǒng)的動力學微分方程,在此基礎上,利用振動方程的解耦理論,對微分方程采用解析法進行求解,同時采用四階龍格一庫塔公式的數(shù)值方法,對動力學微分方程進行了求解,并對齒輪傳動系統(tǒng)進行模態(tài)分析,得出了系統(tǒng)的固有頻率、振型等系統(tǒng)的模態(tài)參數(shù)；此外,利用系統(tǒng)的動態(tài)激勵,求解系統(tǒng)的微分方程,揭示了系統(tǒng)的動態(tài)響應。
[Abstract]:With the rapid development of the world market for clean energy, wind energy is a non polluting, renewable energy has gradually become the focus of attention and use. As one of the most important mechanical parts of wind turbine gearbox, as wind turbines become larger and the maintenance cost is gradually increased. The stability requirements of gear box system is also getting the higher the wind. Because of the random characters, effects of leaves on the gear box of the randomness of the load caused by the vibration of gear system, the vibration causes fatigue damage in the gear box transmission system, reducing the stability of gearbox system, increase the maintenance cost. In order to reduce the fault of gearbox system caused by vibration. To improve the stability of the system, the need for dynamic analysis of the gear transmission system.
This paper introduces the dynamic analysis of large wind turbine gearbox development and scientific importance. The wind turbine gearbox under dynamic loads during operation and vibration, fatigue damage caused by internal components. Discusses the key problems of dynamic model of gear box, the gear transmission system of wind power generator for decomposition three transmission system, respectively, planetary gear transmission system for the first grade, second, third grade helical cylindrical gear transmission system and the system of three parts, using the lumped parameter method, considering the comprehensive gear time-varying stiffness and meshing error, lateral bending vibration, torsional vibration, axial vibration interaction etc. the factors, established the dynamics model of planetary gear, helical gear and shaft, so as to get the whole power gear transmission system model is built The dynamic differential equations of gear box system, on this basis, using the decoupling theory of vibration equation, by solving the differential equation with analytical method, numerical method using four order Runge Kutta formula, the dynamic differential equations were solved, and the gear transmission system modal analysis, obtained the inherent the system frequency, mode of vibration modal parameters of the system; in addition, the use of dynamic incentive system, solving the differential equation system, reveals the dynamic response of the system.

【學位授予單位】：沈陽工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TM315;TH113

【引證文獻】

相關期刊論文 前1條

1 趙三民;韓振南;;基于虛擬樣機技術的風電齒輪箱動力學分析[J];機械傳動;2013年07期

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本文編號：1385663