本文選題：機電伺服系統(tǒng) + 諧波齒輪傳動��； 參考：《南京理工大學》2011年碩士論文

【摘要】：飛行器機電伺服系統(tǒng)是在高沖擊、高慣性、短時過載工況下工作的,通用諧波齒輪傳動的承載能力與動態(tài)性能無法滿足機電伺服系統(tǒng)高承載、高剛度、高響應、特殊性能指標的要求,因此急需研發(fā)一種承載能力大、動態(tài)性能好的諧波齒輪傳動。論文重點針對諧波齒輪傳動的靜、動態(tài)力學性能進行了分析研究,力求尋找影響諧波齒輪傳動承載能力與動態(tài)性能的綜合因素,為提高其承載能力與動態(tài)性能提供理論依據(jù)。 文中采用ABAQUS有限元軟件構建了諧波齒輪傳動的有限元分析模型。通過諧波齒輪傳動裝配體有限元仿真,得出了柔輪初變形與初應力分布規(guī)律,從而驗證柔輪理論變形函數(shù),并確定了柔輪的危險剖面；當柔輪施加靜載荷時,仿真分析得出了柔輪空載與承載工況下變形與應力分布規(guī)律,由此揭示了柔輪靜載下的承載特性；最后在仿真的基礎上試圖通過柔輪關鍵結構參數(shù)的改變,研究柔輪綜合性能的變化規(guī)律,得出了柔輪承載能力、疲勞壽命以及綜合剛度的主要影響因素。 通過諧波齒輪傳動整機動態(tài)有限元仿真,得出在不同負載工況(負載大小、負載頻率以及負載波形)與輸入條件(輸入頻率、輸入波形以及輸入轉速)下,柔輪變形、應力的時變特性以及諧波齒輪傳動動態(tài)響應規(guī)律。 基于上述研究的基礎上,文中通過集中參數(shù)模型建立了諧波齒輪傳動動力學方程。應用S函數(shù)編制了諧波齒輪傳動彈性變形函數(shù)模塊,并由Simulink仿真器求解了諧波齒輪傳動非線性微分方程的數(shù)值解。研究結果驗證了動力學模型的準確性,并為諧波傳動動態(tài)特性分析提供了理論依據(jù)。
[Abstract]:The electromechanical servo system of the aircraft is operated under high impact , high inertia and short - time overload condition . The bearing capacity and dynamic performance of the universal harmonic gear transmission cannot meet the requirements of the high load , high rigidity , high response and special performance index of the electromechanical servo system . Therefore , it is urgent to develop a harmonic gear transmission with large bearing capacity and good dynamic performance . The paper mainly analyzes the static and dynamic mechanical properties of harmonic gear transmission , and seeks to find a comprehensive factor influencing the transmission capacity and dynamic performance of harmonic gear transmission , and provides theoretical basis for improving the bearing capacity and dynamic performance of the harmonic gear .

In this paper , the finite element analysis model of harmonic gear transmission is constructed by means of finite element software . By means of finite element simulation of harmonic gear transmission assembly , the law of initial deformation and initial stress distribution of flexspline is obtained , so that the deformation function of flexspline is verified , and the dangerous section of flexspline is determined .
When a static load is applied to the flexspline , the deformation and stress distribution law of the flexible wheel under no - load and load - bearing conditions is obtained , and the bearing characteristics of the flexible wheel under static load are revealed .
Finally , on the basis of simulation , the change law of flexspline ' s comprehensive performance is studied through the change of key structural parameters of the flexspline , and the main influencing factors of the carrying capacity , fatigue life and comprehensive rigidity of the flexspline are obtained .

Through the dynamic finite element simulation of harmonic gear drive , it is concluded that under different load conditions ( load size , load frequency and load waveform ) and input conditions ( input frequency , input waveform and input speed ) , the flexible wheel deformation , the time - varying characteristic of stress and the dynamic response law of harmonic gear drive are obtained .

On the basis of the above research , the harmonic gear transmission dynamics equation is established through the lumped parameter model . The harmonic gear transmission elastic deformation function module is developed by using the S function , and the numerical solution of the harmonic gear transmission nonlinear differential equation is solved by the Simulink simulator . The results of the study validate the accuracy of the dynamic model and provide theoretical basis for the analysis of the dynamic characteristics of harmonic drive .
【學位授予單位】：南京理工大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TH132.41

【引證文獻】

相關碩士學位論文 前1條

1 陳志;基于變形函數(shù)的諧波傳動結構參數(shù)及性能研究[D];大連理工大學;2012年

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本文編號：1985888