本文選題：風(fēng)電齒輪箱 + 行星傳動��； 參考：《山東大學(xué)》2014年碩士論文

【摘要】：隨著風(fēng)力發(fā)電技術(shù)的發(fā)展,大功率風(fēng)力發(fā)電機的設(shè)計越來越受到青睞。風(fēng)電齒輪箱作為風(fēng)力發(fā)電機的核心部件,其行星傳動結(jié)構(gòu)的設(shè)計尤為重要。目前風(fēng)電齒輪箱中的行星傳動結(jié)構(gòu)大多為滿足2-3MW的結(jié)構(gòu),距離實現(xiàn)國家“十二五”規(guī)劃在大功率風(fēng)電設(shè)備設(shè)計制造方面的規(guī)劃目標：突破10MW級海上風(fēng)電機組整機和零部件設(shè)計有很大距離。同時應(yīng)用在齒輪箱中的齒輪存在著振動噪聲大、受力變形大以及重量大等缺點,而且齒輪參數(shù)不一定是行星傳動中最優(yōu)的參數(shù),也沒有對傳動結(jié)構(gòu)進行參數(shù)化建模裝配。針對以上出現(xiàn)的問題,本文通過對非對稱漸開線齒輪的設(shè)計理論、風(fēng)電齒輪箱行星傳動結(jié)構(gòu)設(shè)計以及參數(shù)優(yōu)化等知識的研究,基于理論分析及有限元分析,對非對稱齒應(yīng)用于風(fēng)電齒輪箱行星傳動進行了深入分析,主要工作如下： 確定風(fēng)電齒輪箱行星傳動的主要設(shè)計參數(shù),通過對功率分流型、串聯(lián)傳動、普通行星傳動三種傳動結(jié)構(gòu)的預(yù)設(shè)計,對比它們的傳動效率及重量,確定了設(shè)計結(jié)構(gòu)緊湊、效率高、功重比高、承載能力強10MW的功率分流型行星傳動結(jié)構(gòu)。 在風(fēng)電齒輪箱行星齒輪設(shè)計中,引進了一種新型的非對稱漸開線齒輪,該新型齒輪能夠提高承載能力、改善齒面潤滑情況,減少齒輪的重量和尺寸,降低齒輪的振動和噪聲。本文在研究非對稱漸開線齒輪形成原理的基礎(chǔ)上,基于PROE對非對稱漸開線齒輪進行了參數(shù)化建模,同時,對基于非對稱齒行星傳動齒輪箱進行了參數(shù)化裝配。 在參數(shù)化模型的基礎(chǔ)上,基于ANSYS WORKBENCH對非對稱齒風(fēng)電齒輪箱各接觸齒對進行了接觸應(yīng)力和彎曲應(yīng)力有限元分析,與理論分析應(yīng)力值進行了對比研究,驗證了限元分析計算的正確性,并進一步對比研究了非對稱齒和對稱齒風(fēng)電齒輪箱的承載能力,得出了采用非對稱齒的風(fēng)電齒輪箱行星傳動可以大大改善傳動效果。 為尋找出最優(yōu)的非對稱齒形角,以非對稱齒風(fēng)電齒輪箱最大等效應(yīng)力為優(yōu)化目標,非對稱齒形角為設(shè)計變量,利用離散參數(shù)優(yōu)化的方法對風(fēng)電齒輪箱進行了優(yōu)化獲得了最優(yōu)的非對稱齒形角。
[Abstract]:With the development of wind power generation technology, the design of high-power wind turbine is more and more popular. As the core part of wind turbine, the design of planetary transmission structure is very important. At present, most of the planetary transmission structures in the wind power gearbox are satisfied with the structure of 2-3MW. It is far from realizing the planning goal in the design and manufacture of high-power wind power equipment in the 12th Five-Year Plan: there is a long way to break through the whole machine and parts design of 10MW offshore wind turbine. At the same time, the gears used in the gearbox have many disadvantages, such as high vibration and noise, large deformation and heavy weight, and the gear parameters are not necessarily the optimal parameters in the planetary transmission, and there is no parameterized modeling assembly for the transmission structure. In view of the above problems, based on the theoretical analysis and finite element analysis, this paper studies the design theory of asymmetric involute gear, the design of planetary transmission structure and parameter optimization of wind power gear box. The application of asymmetric teeth to the planetary transmission of wind power gearbox is deeply analyzed. The main work is as follows: The main design parameters of planetary transmission of wind power gearbox are determined. Through the pre-design of three transmission structures of power shunt type, series transmission and common planetary transmission, compared with their transmission efficiency and weight, it is determined that the design structure is compact and efficient. Power shunt planetary transmission structure with high power to weight ratio and strong bearing capacity 10MW. A new type of asymmetrical involute gear is introduced in the design of planetary gear in wind power gear box. The new gear can improve the bearing capacity, improve the lubrication of the tooth surface, reduce the weight and size of the gear, and reduce the vibration and noise of the gear. Based on the study of the forming principle of asymmetric involute gear, the parametric modeling of asymmetric involute gear based on PROE is presented in this paper. At the same time, the parametric assembly of the gear box based on asymmetric planetary gear is carried out. Based on the parameterized model and ANSYS WORKBENCH, the contact stress and bending stress of each contact pair of unsymmetrical tooth wind power gearbox are analyzed by finite element method, and the results are compared with those of theoretical analysis. The correctness of finite element analysis is verified, and the bearing capacity of asymmetric and symmetrical teeth wind power gearbox is compared and studied. It is concluded that the planetary transmission of wind power box with asymmetric teeth can greatly improve the transmission effect. In order to find out the optimal unsymmetrical tooth shape angle, the maximum equivalent stress of the asymmetric tooth wind power gearbox is taken as the optimization objective, and the asymmetric tooth shape angle is regarded as the design variable. The optimal asymmetric gear angle is obtained by optimizing the wind power gearbox by discrete parameter optimization method.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM315;TH132.41

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