Study on Second-Order Vibration Caused by Secondary Couple of Cardan Joint for a 4WD Driveline

Xia, Yonghong; Pang, Jian; Hu, Chengtai; Zhou, Cui; Zhang, Zhijun

doi:10.1007/978-3-662-45043-7_36

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…A driveline connected by a cardan joint may produce fluctuating angular velocity and moment during torque transmission (Porat, 1980; Seherr-Thoss et al, 1979) and cause mechanical noise, vibration, and fatigue failures. Moreover, the cardan joint easily produces shudder vibration and booming noise in four-wheel-drive (4WD) and rear-wheel-drive vehicle interior (Liu et al, 2017; Wellmann and Govindswamy, 2009; Wellmann et al, 2007; Xia et al, 2015), especially for vehicles running at low-speed and high-torque conditions (lugging conditions). So, an intensive study of the torsional and lateral vibration caused by the cardan joint is essential for design and layout of the automotive driveline.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear numerical and experimental study on the second-order torsional and lateral vibration of driveline system connected by cardan joint

Xia

Pang

Yang

et al. 2019

Journal of Vibration and Control

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In this article, a nonlinear dynamic model with five degrees-of-freedom for a four-wheel-drive vehicle driveline connected by a cardan joint, including dynamic intersection angle, nonconstant velocity, and additional moment caused by the cardan joint, is established by using the Lagrange method to analyze the driveline coupling vibration in both torsional and lateral directions. High-order Runge–Kutta algorithm is applied to solve the differential equations and to calculate transient responses of the driveline rotors under acceleration condition. The color maps and second-order vibration of the driveline are acquired by frequency spectrum analysis and order tracking analysis, respectively. The second-order vibration and noise of the driveline and vehicle interior caused by the cardan joint is validated by vehicle experimental results and reduced effectively by decreasing intersection angle of the cardan joint under the operational condition. Moreover, application of a flexible coupling instead of the cardan joint significantly reduces the second-order vibration but simultaneously generates low-level third-order vibration.

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Section: Introductionmentioning

confidence: 99%

Nonlinear numerical and experimental study on the second-order torsional and lateral vibration of driveline system connected by cardan joint

Xia

Pang

Yang

et al. 2019

Journal of Vibration and Control

Self Cite

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“…The universal joints not only induce velocity fluctuation but also produce an oscillating secondary couple which is a function of driveline angle and transmitted torque. 37…”

Section: Resultsmentioning

confidence: 99%

“…The universal joints not only induce velocity fluctuation but also produce an oscillating secondary couple which is a function of driveline angle and transmitted torque. 37 The order tracking analysis for the rear seat, differential, and powertrain is also conducted, as shown in Figure 7. The overall amplitudes indicate that a much greater oscillation appears on the powertrain compared with the rear seat and differential in the speed range of 1700-2100 r/min.…”

Section: Order Spectrogram and Order Tracking Analysismentioning

confidence: 99%

An experimental investigation of resonance sources and vibration transmission for a pure electric bus

Zeng

Tan

Ding

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part D:

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Electric vehicles generally have a better noise, vibration, and harshness quality than traditional vehicles due to the relatively quiet electric motors. By contrast, the noise, vibration, and harshness issues of the driveline system become more outstanding and significant in the absence of the “masking effect” by the engine. The electrification of the powertrain has also brought many changes in the sources or transmission of vibration, which has led to some new noise, vibration, and harshness issues. Specifically, the intense vibration of the prototype bus appears when driving in third gear, which makes the passengers uncomfortable. This paper presents an efficient analytical strategy for identifying the resonance sources and vibration transmission for a pure electric bus. The strategy incorporates order analysis, operating deflection shape, and transfer path analysis. Order analysis shows that the resonance is primarily caused by the second-order excitation associated with the driveline, and the vibration sources are further identified using operating deflection shape analysis. Moreover, the vibration transfer paths from the driveline to the bus floor are quantitatively determined by the transfer path analysis method. The results show that the coupling vibration of the powertrain and the rear drive axle, which amplifies the resonance of the whole driveline, is transmitted to the bus floor primarily through powertrain mounts and V rods. Based on the results, the design and structure modifications of the driveline and transfer paths are recommended to handle this issue. The proposed identification strategy would be beneficial for accurate and efficient engineering troubleshooting on the vibration issues.

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Study on Second-Order Vibration Caused by Secondary Couple of Cardan Joint for a 4WD Driveline

Cited by 2 publications

References 6 publications

Nonlinear numerical and experimental study on the second-order torsional and lateral vibration of driveline system connected by cardan joint

Nonlinear numerical and experimental study on the second-order torsional and lateral vibration of driveline system connected by cardan joint

An experimental investigation of resonance sources and vibration transmission for a pure electric bus

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