Numerical and experimental investigation on nonlinear dynamic characteristics of planetary gear train

• Autorzy: Zhang Jianwu , Guo Han , Yu Haisheng , Zhang Tong

Identyfikatory

DOI

10.15632/jtam-pl/125572

• Języki publikacji: EN

Abstrakty

EN

A deep hybrid electric vehicle (DHEV) equipped with a Ravigneaux compound planetary gear train (PGT) encounters severe gear whine noises during acceleration in the EV drive mode. For the analysis of vibro-acoustic sources, a 5DOF lumped-parameter vibration model for the PGT dynamic system is established as well as sound pressures radiated from the transmission on a test bench are measured for data processing and recognition. By comparison between numerical and experimental analyses, natural vibration modes of the PGT are examined and high frequency modal resonances in association with the planetary gears are observed only to cause narrow band whine noises. Furthermore, a 2DOF reduced dynamic model for the planetary gears with consideration of nonlinearities such as time-varying mesh stiffness and backlash is proposed, and numerical solutions to bifurcations and dynamic instabilities of the two sets of planetary gears are obtained. It is found that nonlinear vibration behaviour of the long and short planets are major causes of shock and vibration of the hybrid transmission. Severe vibro-acoustic noises excited dominantly by the planetary gears are alleviated after implementing micro-geometry modifications to the PGT.

Słowa kluczowe

EN

deep hybrid transmission; power split devices; lumped parameter model; dynamic instability

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2020
• Tom: Vol. 58 nr 4
• Strony: 1009--1022
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Zhang Jianwu

• State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, China

autor

Guo Han

• State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, China

autor

Yu Haisheng

• R&D Center, Corun Hybrid System Technology Co., Ltd., China

autor

Zhang Tong

• R&D Center, Corun Hybrid System Technology Co., Ltd., China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).