【摘要】：面齒輪傳動(dòng)是一種圓柱齒輪與面齒輪相嚙合的傳動(dòng)，它在直升機(jī)主減速器分扭傳動(dòng)裝置中具有良好的應(yīng)用前景，因此對(duì)面齒輪傳動(dòng)及其分扭系統(tǒng)進(jìn)行動(dòng)力學(xué)分析十分重要。 首先，本文研究了正交面齒輪傳動(dòng)的動(dòng)力學(xué)特性。基于ANSYS對(duì)正交面齒輪傳動(dòng)的嚙合剛度進(jìn)行了研究，分析了主要設(shè)計(jì)參數(shù)對(duì)嚙合剛度的影響�；诩袇�(shù)法，建立了正交面齒輪傳動(dòng)的動(dòng)力學(xué)模型，推導(dǎo)了微分方程。分析平均嚙合剛度、圓柱齒輪的支撐剛度以及面齒輪的支撐剛度對(duì)固有頻率的影響。研究了正交面齒輪傳動(dòng)系統(tǒng)的動(dòng)態(tài)響應(yīng)特性，包括各自由度的時(shí)域響應(yīng)以及動(dòng)載特性，探討了輸入轉(zhuǎn)速、圓柱齒輪支撐剛度、齒輪傳動(dòng)誤差以及輸入扭矩對(duì)動(dòng)載系數(shù)的影響。結(jié)果表明，較小的圓柱齒輪支撐剛度、較小的傳動(dòng)誤差以及較大的輸入扭矩能夠使得正交面齒輪傳動(dòng)的動(dòng)載荷系數(shù)明顯下降。 其次，本文對(duì)正交面齒輪傳動(dòng)分扭系統(tǒng)的動(dòng)力學(xué)特性進(jìn)行了分析。建立了正交面齒輪傳動(dòng)分扭系統(tǒng)的動(dòng)力學(xué)模型。分析了面齒輪平均嚙合剛度、輸入軸的彎曲剛度以及扭轉(zhuǎn)剛度對(duì)系統(tǒng)固有頻率的影響；研究了輸入軸的彎曲剛度和扭轉(zhuǎn)剛度以及輸入扭矩對(duì)系統(tǒng)均載特性的影響。研究結(jié)果表明，輸入軸的彎曲剛度對(duì)系統(tǒng)的均載系數(shù)有著較大的影響，相比于輸入軸的彎曲剛度，輸入軸的扭轉(zhuǎn)剛度對(duì)系統(tǒng)的均載特性影響要小很多。同時(shí)，當(dāng)輸入扭矩較大時(shí)，系統(tǒng)的均載性能較好。 為了對(duì)理論分析進(jìn)行驗(yàn)證，，研制了正交面齒輪傳動(dòng)分扭系統(tǒng)均載特性試驗(yàn)臺(tái)。進(jìn)行了分扭系統(tǒng)均載特性試驗(yàn)，并對(duì)試驗(yàn)數(shù)據(jù)進(jìn)行性了分析比較。結(jié)果表明，理論分析模型是正確可行的。 基于MATLAB，編制了參數(shù)化正交面齒輪動(dòng)力學(xué)特性分析軟件，包括正交面齒輪傳動(dòng)動(dòng)力學(xué)分析模塊和正交面齒輪傳動(dòng)分扭系統(tǒng)動(dòng)力學(xué)分析模塊。
[Abstract]:Surface gear transmission is a kind of cylindrical gear meshing with face gear. It has a good application prospect in helicopter main reducer. Therefore, the dynamic analysis of opposite gear transmission and its torsional system is very important. Firstly, the dynamic characteristics of orthogonal face gear transmission are studied. The meshing stiffness of orthogonal face gear transmission is studied based on ANSYS, and the influence of main design parameters on meshing stiffness is analyzed. Based on the lumped parameter method, the dynamic model of orthogonal face gear transmission is established, and the differential equation is derived. The effects of mean meshing stiffness, support stiffness of cylindrical gear and bracing stiffness of surface gear on natural frequency are analyzed. The dynamic response characteristics of orthogonal face gear transmission system are studied, including the time-domain response and dynamic load characteristics of each degree of freedom. The effects of input speed, support stiffness of cylindrical gear, gear transmission error and input torque on dynamic load coefficient are discussed. The results show that the dynamic load coefficient of orthogonal face gear transmission can be obviously decreased by smaller support stiffness, smaller transmission error and larger input torque. Secondly, the dynamic characteristics of the torsional system of orthogonal face gear transmission are analyzed in this paper. The dynamic model of the torsional system of orthogonal face gear transmission is established. The effects of the mean meshing stiffness, the bending stiffness of the input shaft and the torsional stiffness on the natural frequency of the system are analyzed, and the effects of the bending stiffness and torsional stiffness of the input shaft and the input torque on the load sharing characteristics of the system are studied. The results show that the bending stiffness of the input shaft has a great influence on the load sharing coefficient of the system. Compared with the bending stiffness of the input shaft, the torsional stiffness of the input shaft has a much smaller effect on the load sharing characteristics of the system. At the same time, when the input torque is high, the load-sharing performance of the system is better. In order to verify the theoretical analysis, a load sharing test rig for orthogonal face gear drive torsional system was developed. The load-sharing characteristic test of the torsional system was carried out, and the experimental data were analyzed and compared progressively. The results show that the theoretical analysis model is correct and feasible. Based on MATLAB, a parameterized software for analyzing the dynamic characteristics of orthogonal face gear is developed, which includes the dynamic analysis module of orthogonal face gear transmission and the dynamic analysis module of orthogonal face gear drive split torsion system.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH132.41

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