本文關(guān)鍵詞： 超環(huán)面行星蝸桿傳動(dòng) 二次開發(fā) 模態(tài)分析 諧響應(yīng)分析 參數(shù)優(yōu)化　出處：《燕山大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

【摘要】：超環(huán)面行星蝸桿傳動(dòng)具有傳動(dòng)比大、噪聲小、效率高和承載能力大等優(yōu)點(diǎn)。適合應(yīng)用于要求較為苛刻的風(fēng)力發(fā)電增速系統(tǒng)。相對(duì)于傳統(tǒng)的風(fēng)電多級(jí)行星齒輪傳動(dòng)機(jī)構(gòu)，其顯著優(yōu)勢在于結(jié)構(gòu)緊湊、體積小。 本文首先對(duì)超環(huán)面行星蝸桿傳動(dòng)的基本嚙合特性進(jìn)行了計(jì)算，確定了超環(huán)面?zhèn)鲃?dòng)的一系列參數(shù)配比，為后續(xù)的仿真分析奠定了基礎(chǔ)。 其次，使用三維造型軟件PRO/ENGINEER對(duì)超環(huán)面?zhèn)鲃?dòng)機(jī)構(gòu)進(jìn)行了三維實(shí)體建模，進(jìn)行了運(yùn)動(dòng)模擬及干涉檢驗(yàn)；此外，在C++語言環(huán)境下結(jié)合PRO/TOOLKIT開發(fā)工具對(duì)機(jī)構(gòu)零件模型進(jìn)行了二次開發(fā)，模塊化了建模過程，并創(chuàng)建了簡單方便的建模界面。 運(yùn)用有限元仿真軟件ANSYS WORKBENCH對(duì)機(jī)構(gòu)進(jìn)行了靜力學(xué)仿真，分析了行星輪一個(gè)嚙合周期中應(yīng)力與變形的變化規(guī)律，并對(duì)不同參數(shù)下系統(tǒng)的應(yīng)力與變形進(jìn)行了研究。結(jié)果表明：超環(huán)面行星蝸桿傳動(dòng)的嚙合力隨嚙合齒數(shù)不同而周期變化；采用錐形齒行星輪可明顯降低嚙合應(yīng)力，但同時(shí)會(huì)增加行星輪變形量；增多行星輪個(gè)數(shù)可大幅降低接觸應(yīng)力，并減小各零件的變形量。 通過系統(tǒng)模態(tài)仿真，對(duì)系統(tǒng)模態(tài)進(jìn)行了歸類與研究，分析了對(duì)系統(tǒng)振動(dòng)影響較大的蝸桿旋轉(zhuǎn)模態(tài)、行星架旋轉(zhuǎn)模態(tài)與行星輪旋轉(zhuǎn)模態(tài)；通過不同參數(shù)下的模態(tài)分析，得出了系統(tǒng)固有頻率、振型及相對(duì)振動(dòng)位移與系統(tǒng)參數(shù)的關(guān)系。 通過系統(tǒng)諧響應(yīng)分析，對(duì)機(jī)構(gòu)在不同位置激振力作用下的受迫振動(dòng)與動(dòng)應(yīng)力進(jìn)行了研究；分析了傳動(dòng)系統(tǒng)在共振頻率下的振動(dòng)特性。 針對(duì)現(xiàn)代某風(fēng)機(jī)的傳動(dòng)性能要求，應(yīng)用Matlab軟件的優(yōu)化工具箱對(duì)超環(huán)面?zhèn)鲃?dòng)進(jìn)行了參數(shù)優(yōu)化設(shè)計(jì)，優(yōu)化了機(jī)構(gòu)體積。使得機(jī)構(gòu)體積減小量超過33%。為機(jī)構(gòu)在風(fēng)機(jī)上的實(shí)際應(yīng)用奠定了基礎(chǔ)。
[Abstract]:Super-toroidal planetary worm drive has the advantages of large transmission ratio, low noise, high efficiency and high bearing capacity, etc. It is suitable for application in wind power generation increasing speed system with demanding requirements, compared with the traditional multi-stage planetary gear transmission mechanism of wind power. Its remarkable advantage lies in the structure is compact, the volume is small. In this paper, the basic meshing characteristics of the supertoroidal planetary worm drive are first calculated, and a series of parameter ratios are determined, which lays a foundation for the subsequent simulation analysis. Secondly, the 3D solid modeling, motion simulation and interference test of the super toroidal transmission mechanism are carried out by using 3D modeling software PRO/ENGINEER, in addition, the part model of the mechanism is redeveloped with PRO/TOOLKIT development tool in C language. Modularized the modeling process and created a simple and convenient modeling interface. The finite element simulation software ANSYS WORKBENCH is used to simulate the mechanism statically, and the variation of stress and deformation in a meshing cycle of planetary gear is analyzed. The stress and deformation of the system under different parameters are studied. The results show that the meshing force of the supertoroidal planetary worm gearing varies periodically with the number of meshing teeth, and the meshing stress can be obviously reduced by using the conical planetary gear. But at the same time, the deformation amount of planetary gear will be increased, and the contact stress can be greatly reduced and the deformation of each part can be reduced by increasing the number of planetary gears. Through the system modal simulation, the system modal is classified and studied, and the worm rotation mode, the planetary frame rotation mode and the planetary wheel rotation mode, which have great influence on the system vibration, are analyzed through the modal analysis under different parameters. The relationship between system natural frequency, vibration mode and relative vibration displacement and system parameters is obtained. By analyzing the harmonic response of the system, the forced vibration and dynamic stress of the mechanism under the excitation force at different positions are studied, and the vibration characteristics of the transmission system at the resonance frequency are analyzed. According to the transmission performance requirements of a modern fan, the optimization toolbox of Matlab software is used to optimize the parameters of the super toroidal transmission. The volume of the mechanism is optimized and the volume of the mechanism is reduced to more than 33, which lays a foundation for the practical application of the mechanism in the fan.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH132.44

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