Numerical Analysis and Demonstration: Transmission Shaft Influence on Meshing Vibration in Driving and Driven Gears

Xu, Jinli; Su, Xingyi; Peng, Bo

doi:10.1155/2015/365084

Cited by 11 publications

(8 citation statements)

References 12 publications

(10 reference statements)

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“…� � is the equivalent rotary inertia of transmission components (where i =1,...,8), and their values are listed in Table 3. With the reference to the relationship between displacement of shaft and angle between drive shafts [8], the theoretical model for the coupled vibration of the shaft-final drive system can be acquired,…”

Section: Nonlinear Dynamic Model Of Shaft-final Drive Systemmentioning

confidence: 99%

“…In this research, a model about the coupled vibration of shaft-final drive system is developed, based on the models developed previously [7][8][9][10], which includes the inhomogeneity of multiple universal joint transfer and the nonlinear time-varying factors of gear system. Using this model, the vibration responses of gears at different values of angle between drive shafts are simulated.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the effect of the angle between drive shafts on vibration responses of main reducer

Liu

Shu

et al. 2018

MATEC Web Conf.

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The drive shaft arrangement has a considerable influence on the vibration responses of the shaft-final drive system. In this research, a coupled vibration model is developed based on force analysis of hypoid gear and lumped mass method. The effect of time-varying mesh stiffness, gear backlash and transfer error are included to investigate the effect of the angle between drive shafts on vibration responses of main reducer. The vibration responses of main reducer are acquired using this model. The results show that the vibration amplitude of the gears of main reducer increase with the angle between drive shafts. This paper presents an analytical method to determine the value of the angle between drive shafts, so as to control the vibration of main reducer.

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Section: Nonlinear Dynamic Model Of Shaft-final Drive Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of the effect of the angle between drive shafts on vibration responses of main reducer

Liu

Shu

et al. 2018

MATEC Web Conf.

View full text Add to dashboard Cite

show abstract

“…In case of transmissions with Hooke's joints, as common in many automotive systems, [12] proposes a torsional vibration mathematical model of the transmission shaft, driving gear, and driven gear based on lumped masses and the main reducer system assembly. The influence of the angle between transmission shafts and intermediate support stiffness on the vibration and noise of the main reducer is obtained and verified experimentally.…”

Section: Shock and Vibrationmentioning

confidence: 99%

Torsional Oscillations in Automotive Transmissions: Experimental Analysis and Modelling

Galvagno

Velardocchia

Vigliani

2016

Shock and Vibration

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The paper investigates the torsional oscillations of an automotive transmission system by means of an experimental test bench used to validate the proposed lumped parameter model. The rig consists of a Dual Clutch Transmission (DCT) and a Manual Transmission (MT) connected through the respective output shafts, while the excitation is provided by two electric motors, which are controlled in speed or torque. The experimental analysis includes the measurement of the external torques, applied by the two electric motors to the mechanical system, and the measurement of the system response in terms of angular speeds at different positions along the transmission line. The frequency response of the system is estimated from the experimental data and compared with the results of a 5-degree-of-freedom lumped parameter model, which proves to be adequate to describe the dynamic behaviour of the system up to a frequency of 200 Hz. The comparison between simulated results and experimental data shows good agreement, so the model can be used to predict the torsional vibrations of the transmission system in the linear field. Moreover, the effects of the nonlinearities associated with the mean value of the excitations are shown. Finally the influence of the selected gear ratio on the experimental frequency response is discussed.

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“…They proved the effectiveness of floating support to decrease the kinematic and dynamic fluctuations of the driveshaft mechanism. Finally, Jinli et al. (2015) considered a transmission system composed of U-joints, shafts and a gear pair.…”

Section: Introductionmentioning

confidence: 99%

Parametric resonances for torsional vibration of excited rotating machineries with nonconstant velocity joints

SoltanRezaee

Ghazavi

Najafi

2017

Journal of Vibration and Control

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The shaft system is a rotating machinery with many applications due to its high speed. The angle between shafts may not be zero. So the shafts can be connected to each other through a nonconstant velocity U-joint, which transforms a constant input angular velocity into a periodically fluctuating velocity. Consequently, the mechanism is parametrically excited and may face resonance conditions. Herein, a power transmission system including three elastic shafts is considered. The polar inertia moment of each shaft is modeled as a dynamic system with two discrete disks at the shaft ends. The equations of motion consist of a set of Mathieu–Hill differential equations with periodic coefficients. The dynamic stability and torsional vibration of the shaft system are analyzed. The system geometry and inertia moment effect are the main issues in this contribution. Parametric instability charts are achieved via the monodromy matrix technique. The graphical numerical results are validated with the frequency analytical results. Finally, the stability regions are shown in the parameter spaces of velocity, misalignment angles and the inertia of disks. The results demonstrated that by changing the system inertia and geometry, stabilizing the whole system is possible. Moreover, to check the precision of the model, the results are compared with a basic single-disk model, which is prevalent in two-shaft systems.

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Numerical Analysis and Demonstration: Transmission Shaft Influence on Meshing Vibration in Driving and Driven Gears

Cited by 11 publications

References 12 publications

Investigation of the effect of the angle between drive shafts on vibration responses of main reducer

Investigation of the effect of the angle between drive shafts on vibration responses of main reducer

Torsional Oscillations in Automotive Transmissions: Experimental Analysis and Modelling

Parametric resonances for torsional vibration of excited rotating machineries with nonconstant velocity joints

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