本文選題：風(fēng)力發(fā)電機(jī) + 齒輪傳動(dòng)系統(tǒng)　； 參考：《天津大學(xué)》2012年碩士論文

【摘要】：近年來,風(fēng)力發(fā)電產(chǎn)業(yè)在世界范圍內(nèi)得到快速發(fā)展,兆瓦級(jí)風(fēng)電機(jī)組已成為我國(guó)風(fēng)電市場(chǎng)的主流產(chǎn)品。工作環(huán)境的特殊性,對(duì)風(fēng)電機(jī)組關(guān)鍵部件(如增速、變槳、偏航系統(tǒng)等)的可靠性和使用壽命提出了很高要求。因此,開展風(fēng)電增速齒輪傳動(dòng)系統(tǒng)的動(dòng)態(tài)設(shè)計(jì)研究具有重要的科學(xué)意義與工程應(yīng)用價(jià)值。在國(guó)家自然科學(xué)基金項(xiàng)目(50905122)的資助下,本文以兩級(jí)行星加一級(jí)平行軸式的兆瓦級(jí)風(fēng)電增速箱為例,對(duì)該類齒輪傳動(dòng)系統(tǒng)的動(dòng)力學(xué)特性進(jìn)行了較深入的研究,主要內(nèi)容如下: 在介紹了該類風(fēng)電增速齒輪傳動(dòng)系統(tǒng)的結(jié)構(gòu)組成的基礎(chǔ)上,采用集中參數(shù)法建立各級(jí)傳動(dòng)的平移-扭轉(zhuǎn)耦合動(dòng)力學(xué)模型。通過分析各構(gòu)件之間的相對(duì)位移關(guān)系,推導(dǎo)出系統(tǒng)的運(yùn)動(dòng)微分方程,并給出時(shí)變嚙合剛度、嚙合誤差、外部激勵(lì)及連接剛度的計(jì)算方法。 借助模態(tài)分析理論計(jì)算了該類風(fēng)電增速齒輪傳動(dòng)系統(tǒng)的固有頻率與振型。研究表明,上述系統(tǒng)存在三種典型的振動(dòng)模式,即單級(jí)行星輪系中心構(gòu)件平移振動(dòng)模式、三級(jí)齒輪傳動(dòng)振動(dòng)模式和平行軸齒輪振動(dòng)模式。詳細(xì)分析了系統(tǒng)固有特性對(duì)其剛度參數(shù)的敏感度。 應(yīng)用諧波平衡法求解了該類風(fēng)電增速齒輪傳動(dòng)系統(tǒng)的位移響應(yīng),揭示出內(nèi)部、外部激勵(lì)對(duì)系統(tǒng)動(dòng)態(tài)響應(yīng)的影響規(guī)律,并計(jì)算了各嚙合齒輪副的使用系數(shù)和動(dòng)載系數(shù)。在此基礎(chǔ)上,進(jìn)一步分析了改善系統(tǒng)動(dòng)態(tài)響應(yīng)的措施,如相位調(diào)諧、太陽輪浮動(dòng)、高速級(jí)齒輪轉(zhuǎn)動(dòng)慣量調(diào)整等。 上述研究成果為該類風(fēng)電增速齒輪傳動(dòng)系統(tǒng)的動(dòng)態(tài)設(shè)計(jì)提供了理論依據(jù)。
[Abstract]:In recent years, wind power generation industry has developed rapidly in the world, and megawatt wind turbine has become the mainstream of wind power market in China. Because of the particularity of the working environment, the reliability and service life of the key components (such as speed up, propeller, yaw system, etc.) of the wind turbine are very high. Therefore, it is of great scientific significance and engineering application value to study the dynamic design of wind power acceleration gear transmission system. Supported by the National Natural Science Foundation of China (50905122), the dynamic characteristics of this kind of gear transmission system are studied in this paper with the example of two-stage planetary and one-stage parallel axis type megawatt wind power growth box. The main contents are as follows: on the basis of introducing the structure composition of the gear transmission system of this kind of wind power speed up, the coupling dynamic model of translation and torsion of all levels of transmission is established by means of the method of concentrated parameters. Based on the analysis of the relative displacement relationship between the components, the differential equations of motion of the system are derived, and the calculation methods of the time-varying meshing stiffness, meshing error, external excitation and connection stiffness are given. Based on modal analysis theory, the natural frequency and mode shape of this kind of wind power acceleration gear transmission system are calculated. The results show that there are three typical vibration modes in the system, namely, the translational vibration mode of the central component of the single-stage planetary gear train, the vibration mode of the three-stage gear transmission and the vibration mode of the parallel shaft gear. The sensitivity of the inherent characteristics of the system to its stiffness parameters is analyzed in detail. The harmonic balance method is used to solve the displacement response of this kind of wind power acceleration gear transmission system. The influence of internal and external excitation on the dynamic response of the system is revealed, and the use coefficient and dynamic load coefficient of each meshing gear pair are calculated. On this basis, the measures to improve the dynamic response of the system are further analyzed, such as phase tuning, solar wheel floating, moment of inertia adjustment of high-speed gear and so on. The above research results provide a theoretical basis for the dynamic design of the speed-increasing gear transmission system of this kind of wind power.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TM315;TH113.22

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本文編號(hào)：2060458