【摘要】：DCT雙離合器自動變速器憑借著換擋的平順性及燃油的經(jīng)濟性,正逐漸成為變速器行業(yè)的新寵。在對雙離合器自動變速器的自主研發(fā)中,其裝配工藝的研發(fā)也是必不可少的一個環(huán)節(jié)。壓裝工藝作為變速器裝配中重要的工藝過程,直接關(guān)系到變速器的裝配質(zhì)量,進而影響到變速器整體的性能。 本文首先介紹了變速器壓裝工藝的國內(nèi)外現(xiàn)狀,闡述了DCT雙離合器自動變速器的結(jié)構(gòu)特點、工作原理及系統(tǒng)組成。 然后,針對DCT自動變速器中離合器殼體軸承外圈的壓裝過程,闡述了過盈壓裝力學(xué)理論解析及有限元分析理論基礎(chǔ),為過盈壓裝工藝的有限元仿真提供理論指導(dǎo)。 根據(jù)理論分析,對變速器殼體軸承外圈壓裝工藝進行了有限元仿真,得出壓裝力-位移曲線并對壓裝過程中零件的應(yīng)力、應(yīng)變情況進行分析。通過仿真分析,研究了不同壓裝工藝參數(shù)對壓裝力-位移曲線的影響,為變速器殼體軸承外圈壓裝工藝的優(yōu)化、壓裝設(shè)備的設(shè)計提供參考依據(jù)。 最后,進行了電動伺服壓裝試驗。通過試驗結(jié)果與仿真結(jié)果的對比,驗證了變速器殼體軸承外圈壓裝有限元仿真分析的可行性,并對比出不同壓裝參數(shù)對壓裝力的影響程度,為壓裝力-位移曲線的監(jiān)測及產(chǎn)品的設(shè)計提供借鑒。
[Abstract]:DCT dual clutch automatic transmission is becoming a new favorite of transmission industry with its smoothness and fuel economy. In the independent research and development of dual clutch automatic transmission, the development of its assembly process is also an essential link. As an important process in the assembly of transmission, the pressing process is directly related to the assembly quality of transmission, and then affects the whole performance of transmission. In this paper, the present situation of pressure mounting technology of transmission is introduced, and the structure characteristics, working principle and system composition of DCT double clutch automatic transmission are expounded. Then, in view of the pressing process of clutch shell bearing outer ring in DCT automatic transmission, the theoretical analysis of interference press mechanics and finite element analysis theory are expounded, which provides theoretical guidance for the finite element simulation of interference press technology. According to the theoretical analysis, the finite element simulation was carried out on the pressing process of the outer ring of the transmission shell bearing, and the pressure-displacement curve was obtained, and the stress and strain of the parts during the pressing process were analyzed. Through the simulation analysis, the influence of different pressing process parameters on the pressure-displacement curve is studied, which provides a reference for the optimization of the pressing process of the outer ring of the bearing of the transmission shell and the design of the pressing equipment. Finally, the electric servo pressure mounting test is carried out. By comparing the test results with the simulation results, the feasibility of the finite element simulation analysis of the outer ring of the transmission housing bearing is verified, and the influence of different pressing parameters on the pressure loading force is compared. It provides reference for the monitoring of pressure-displacement curve and the design of products.
【學(xué)位授予單位】：合肥工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TH133.4

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