本文選題：多級(jí)行星齒輪傳動(dòng) + 齒面摩擦力��； 參考：《昆明理工大學(xué)》2017年碩士論文

【摘要】：多級(jí)行星齒輪傳動(dòng)系統(tǒng)多應(yīng)用于大型風(fēng)力發(fā)電裝置、礦山機(jī)械及盾構(gòu)機(jī)等復(fù)雜機(jī)械中,具有結(jié)構(gòu)緊湊、傳動(dòng)比大、承載高、傳動(dòng)平穩(wěn)等優(yōu)點(diǎn),在業(yè)界深受歡迎。但多級(jí)行星齒輪裝置結(jié)構(gòu)多、動(dòng)態(tài)耦合復(fù)雜、非線(xiàn)性因素豐富,至使動(dòng)力學(xué)模型精確性難以保證,動(dòng)力學(xué)特性研究不夠深入,制約了多級(jí)行星齒輪的發(fā)展及應(yīng)用。多級(jí)行星齒輪振動(dòng)與噪聲的分析建立在動(dòng)力學(xué)研究的基礎(chǔ)上,振動(dòng)與噪聲不僅影響了工作環(huán)境,同時(shí)也降低了設(shè)備正常運(yùn)行壽命。因此,對(duì)多級(jí)行星齒輪傳動(dòng)系統(tǒng)動(dòng)力學(xué)特性進(jìn)行研究,在工程應(yīng)用與理論研究上具有重要意義。本文基于多級(jí)行星齒輪傳動(dòng)系統(tǒng),考慮了齒面摩擦力及摩擦系數(shù)的計(jì)算方式,為多級(jí)行星齒輪傳動(dòng)系統(tǒng)的動(dòng)力學(xué)精細(xì)化建模及結(jié)構(gòu)優(yōu)化奠定了基礎(chǔ);齒側(cè)間隙下分岔特性的分析使多級(jí)行星齒輪傳動(dòng)系統(tǒng)的動(dòng)態(tài)特性更加豐富,使論文的研究更具完整性。本文主要研究?jī)?nèi)容如下:基于齒面摩擦力、時(shí)變嚙合剛度、箱體耦合及級(jí)間耦合等因素,建立了多級(jí)行星齒輪傳動(dòng)系統(tǒng)非線(xiàn)性耦合扭轉(zhuǎn)動(dòng)力學(xué)模型,運(yùn)用數(shù)值方法求解了不同摩擦系數(shù)下的振動(dòng)響應(yīng),對(duì)比了不同摩擦系數(shù)下各構(gòu)件的振動(dòng)幅值,并預(yù)估μ=0.01時(shí),不同轉(zhuǎn)速下的振動(dòng)響應(yīng);將摩擦潤(rùn)滑狀態(tài)進(jìn)行歸類(lèi),分析了各種狀態(tài)下的摩擦系數(shù)計(jì)算方式,在流體潤(rùn)滑狀態(tài)下考慮齒面摩擦力的時(shí)變影響,運(yùn)用數(shù)值方法求解了參數(shù)激勵(lì)下的振動(dòng)響應(yīng)�；邶X側(cè)間隙、齒面摩擦力、時(shí)變嚙合剛度、級(jí)間耦合等因素,推導(dǎo)出多級(jí)行星齒輪傳動(dòng)系統(tǒng)非線(xiàn)性量綱一動(dòng)力學(xué)方程,獲取了傳動(dòng)系統(tǒng)在激勵(lì)頻率作用下,分岔通往混沌道路的非線(xiàn)性振動(dòng)特性,綜合運(yùn)用相圖和Poincare截面對(duì)通往混沌道路進(jìn)行了闡述。以背靠背形式搭建了多級(jí)行星傳動(dòng)試驗(yàn)平臺(tái),對(duì)二級(jí)行星齒輪箱進(jìn)行了振動(dòng)測(cè)試,同時(shí)獲取箱體各測(cè)點(diǎn)Z向振動(dòng)數(shù)據(jù)、相位圖及Poincare圖。
[Abstract]:Multi-stage planetary gear transmission system is widely used in large wind power plants, mining machinery and shield machines. It has the advantages of compact structure, high transmission ratio, high bearing capacity, stable transmission and so on, and is very popular in the industry. However, the multi-stage planetary gear device has many structures, complex dynamic coupling and rich nonlinear factors, which makes it difficult to guarantee the accuracy of the dynamic model, and the research of dynamic characteristics is not deep enough, which restricts the development and application of multi-stage planetary gear. The analysis of vibration and noise of multistage planetary gear is based on the dynamic research. Vibration and noise not only affect the working environment, but also reduce the normal service life of the equipment. Therefore, it is of great significance to study the dynamic characteristics of multistage planetary gear transmission system in engineering application and theoretical research. Based on multistage planetary gear transmission system, the calculation method of tooth surface friction and friction coefficient is considered in this paper, which lays a foundation for dynamic fine modeling and structure optimization of multistage planetary gear transmission system. The dynamic characteristics of multistage planetary gear transmission system are enriched by the analysis of bifurcation characteristics under tooth side clearance, which makes the research of this paper more complete. The main contents of this paper are as follows: based on the factors of tooth surface friction, time-varying meshing stiffness, box coupling and interstage coupling, the nonlinear coupling torsional dynamics model of multistage planetary gear transmission system is established. The vibration response under different friction coefficients is solved by using numerical method, the vibration amplitude of each member under different friction coefficient is compared, and the vibration response at different rotational speeds is predicted when 渭 0. 01. The friction lubrication state is classified. The calculation methods of friction coefficient in various states are analyzed. The time-varying influence of tooth surface friction is considered under the condition of fluid lubrication, and the vibration response under parametric excitation is solved by numerical method. Based on the factors of tooth side clearance, tooth surface friction, time-varying meshing stiffness and interstage coupling, the nonlinear dimensional-dynamics equation of multistage planetary gear transmission system is derived, and the drive system under excitation frequency is obtained. The nonlinear vibration characteristics of bifurcation leading to chaotic road are expounded by using phase diagram and Poincare cross section. A multistage planetary transmission test platform was built in the form of back-to-back. The vibration test of the secondary planetary gearbox was carried out. At the same time, the Z direction vibration data, phase diagram and Poincare diagram of each measuring point of the box were obtained.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TH132.425

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