本文選題：膜片聯(lián)軸器 + 動(dòng)力學(xué)仿真��； 參考：《重慶大學(xué)》2012年碩士論文

【摘要】：膜片聯(lián)軸器是一種聯(lián)接軸與軸或其他回轉(zhuǎn)零件以實(shí)現(xiàn)傳遞運(yùn)動(dòng)和動(dòng)力的裝置，，主要由膜片、中間軸、法蘭、連接環(huán)、壓板、螺栓等零件組成。膜片聯(lián)軸器可通過膜片的彈性變形來補(bǔ)償相對(duì)位移，允許所聯(lián)兩軸存在一定的軸向、徑向和角向安裝誤差，且對(duì)傳動(dòng)系統(tǒng)有緩沖和減振作用，是一種高性能的撓性聯(lián)軸器，廣泛應(yīng)用于各種機(jī)械裝置的軸系傳動(dòng)中。膜片聯(lián)軸器結(jié)構(gòu)復(fù)雜，膜片損壞導(dǎo)致的聯(lián)軸器失效將直接影響傳動(dòng)系統(tǒng)的正常工作，甚至造成安全事故。因此，開展膜片聯(lián)軸器接觸有限元分析、動(dòng)力學(xué)仿真和疲勞壽命分析的研究有重要的工程應(yīng)用價(jià)值。 本文綜合應(yīng)用多體接觸有限元法、動(dòng)力學(xué)仿真理論以及疲勞壽命分析方法，對(duì)膜片聯(lián)軸器力學(xué)性能和疲勞壽命進(jìn)行研究。本文的主要研究工作如下： ①考慮膜片聯(lián)軸器實(shí)際工作狀態(tài)下的螺栓預(yù)緊力、離心力、扭矩等載荷工況，建立了膜片聯(lián)軸器的整體有限元模型，采用ANSYS軟件對(duì)其進(jìn)行多體接觸有限元分析，研究了軸向、徑向和角向安裝誤差對(duì)膜片聯(lián)軸器力學(xué)性能的影響。 ②借助ANSYS軟件采用分塊Lanczos法分別對(duì)膜片聯(lián)軸器整體和膜片組進(jìn)行模態(tài)分析，計(jì)算獲得聯(lián)軸器和膜片組的前20階固有頻率及其對(duì)應(yīng)的振型。 ③采用虛擬樣機(jī)仿真軟件ADAMS，建立了膜片聯(lián)軸器多剛體動(dòng)力學(xué)模型，在此基礎(chǔ)上對(duì)膜片進(jìn)行柔性化處理，建立膜片聯(lián)軸器的剛?cè)狁詈夏Ｐ�，通過剛?cè)狁詈蟿?dòng)力學(xué)仿真分析得到了膜片和螺栓的載荷時(shí)間歷程。 ④運(yùn)用ANSYS軟件對(duì)膜片和螺栓進(jìn)行靜力分析，借助FE-SAFE軟件把靜力分析的結(jié)果文件與剛?cè)狁詈蟿?dòng)力學(xué)仿真分析得到的載荷時(shí)間歷程相結(jié)合，通過疲勞計(jì)算得到膜片和螺栓的疲勞壽命。
[Abstract]:Diaphragm coupling is a device that connects shaft with shaft or other rotary parts to transfer motion and power. It mainly consists of diaphragm, intermediate shaft, flange, connecting ring, press plate, bolt and so on. The diaphragm coupling can compensate the relative displacement through the elastic deformation of the diaphragm, allowing certain axial, radial and angular installation errors in the two axes of the coupling, and it also has the function of buffering and reducing the vibration of the transmission system, so it is a kind of high performance flexible coupling. It is widely used in shafting transmission of various mechanical devices. The structure of diaphragm coupling is complex, and the failure of coupling caused by diaphragm damage will directly affect the normal operation of transmission system and even lead to safety accidents. Therefore, the research of contact finite element analysis, dynamic simulation and fatigue life analysis of diaphragm coupling has important engineering application value. In this paper, the mechanical properties and fatigue life of diaphragm coupling are studied by means of multi-body contact finite element method, dynamic simulation theory and fatigue life analysis method. The main work of this paper is as follows: In this paper, the integral finite element model of diaphragm coupling is established by considering the load conditions such as pretightening force, centrifugal force, torque and so on. The multibody contact finite element analysis is carried out by using ANSYS software, and the axial direction is studied. Effects of radial and angular mounting errors on mechanical properties of diaphragm coupling. (2) with the help of ANSYS software, the modal analysis of the whole diaphragm coupling and the diaphragm group is carried out by block Lanczos method, and the first 20 natural frequencies and the corresponding vibration modes of the coupling and the diaphragm group are calculated. 3 using virtual prototyping simulation software Adams, the multi-rigid body dynamics model of diaphragm coupling is established. On this basis, the flexible treatment of diaphragm is carried out, and the rigid-flexible coupling model of diaphragm coupling is established. The load time history of diaphragm and bolt is obtained by rigid-flexible coupling dynamic simulation. (4) the static analysis of diaphragm and bolt is carried out by using ANSYS software, and the result file of static analysis is combined with the load time history obtained by the simulation analysis of rigid-flexible coupling dynamics with the aid of FE-SAFE software. The fatigue life of diaphragm and bolt is obtained by fatigue calculation.
【學(xué)位授予單位】：重慶大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH133.4

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