本文選題：電傳動 + 液壓傳動　； 參考：《長安大學(xué)》2015年碩士論文

【摘要】：當(dāng)前世界能源消耗過度,浪費(fèi)現(xiàn)象普遍存在,環(huán)境污染原來越嚴(yán)重,傳統(tǒng)的液力機(jī)械平地機(jī)已不能滿足當(dāng)前社會的要求,平地機(jī)必須進(jìn)行技術(shù)革新。本文對電傳動和液壓傳動平地機(jī)的作業(yè)性能進(jìn)行對比研究,目的是確定一種更適合平地機(jī)的傳動技術(shù),在滿足平地機(jī)動力性要求的前提下減少排放。本文從平地機(jī)的動力學(xué)及負(fù)荷特性分析入手,在對電傳動和液壓傳動平地機(jī)合理匹配的基礎(chǔ)上進(jìn)行了作業(yè)性能仿真分析。主要內(nèi)容有:首先,對平地機(jī)進(jìn)行了運(yùn)動學(xué)、動力學(xué)分析,對負(fù)荷特性進(jìn)行了研究并采用簡諧周期函數(shù)對隨機(jī)負(fù)荷進(jìn)行了模擬;其次,對電傳動平地機(jī)進(jìn)行了傳動方案研究及電傳動系統(tǒng)的匹配研究,并對發(fā)電機(jī)、電動機(jī)、超級電容進(jìn)行了選型及計(jì)算;再次,在對發(fā)動機(jī)—液壓系統(tǒng)進(jìn)行合理匹配控制研究的基礎(chǔ)上,對液壓傳動平地機(jī)的液壓泵、液壓馬達(dá)進(jìn)行了選型與計(jì)算,對系統(tǒng)壓力進(jìn)行了確定,給出了液壓泵、液壓馬達(dá)排量的動態(tài)調(diào)節(jié)方法與實(shí)現(xiàn)算法;最后,利用AMESim軟件對電傳動平地機(jī)和液壓傳動平地機(jī)分別進(jìn)行建模并完成了不同工況下的作業(yè)性能仿真及結(jié)果分析,仿真結(jié)果對提高當(dāng)前平地機(jī)技術(shù)水平具有指導(dǎo)意義,且本文利用AMESim進(jìn)行電傳動系統(tǒng)仿真的創(chuàng)新方法對其他機(jī)械的電傳動系統(tǒng)仿真研究具有一定的借鑒意義。
[Abstract]:At present, the energy consumption in the world is excessive and the phenomenon of waste is widespread. The more serious the environmental pollution is, the more serious the environmental pollution is. The traditional hydraulic mechanical grader can no longer meet the requirements of the current society, so the leveling machine must carry on the technical innovation. In this paper, the working performance of electric drive and hydraulic drive grader is compared and studied. The purpose of this paper is to determine a transmission technology that is more suitable for the grader and to reduce the emission under the premise of satisfying the dynamic requirements of the grader. In this paper, the dynamic and load characteristics of the grader are analyzed, and the operation performance simulation analysis is carried out on the basis of the reasonable matching of electric drive and hydraulic drive grader. The main contents are as follows: firstly, the kinematics and dynamics of the grader are analyzed, the load characteristics are studied and the random load is simulated by the harmonic periodic function. The transmission scheme of electric drive grader and the matching of electric transmission system are studied, and the type selection and calculation of generator, motor and super capacitor are carried out. On the basis of reasonable matching control of engine and hydraulic system, the hydraulic pump and hydraulic motor of hydraulic drive grader are selected and calculated, the pressure of the system is determined, and the hydraulic pump is given. The dynamic adjustment method and realization algorithm of hydraulic motor displacement are presented. Finally, the electric drive grader and hydraulic drive grader are modeled by AMESim software, and the operation performance simulation and result analysis are completed under different working conditions. The simulation results are of guiding significance to improve the current level of leveling machine technology, and the innovative method of electric transmission system simulation using AMESim in this paper has some reference significance for the simulation research of other mechanical electric transmission system.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU623.6

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本文編號：1931958