An Improved Computational Method for Vibration Response and Radiation Noise Analysis of Two-Stage Gearbox

Wang, Shengnan; Adayi, Xieeryazidan; Zhang, Xiangfeng; Zhou, Jianxing

doi:10.1109/access.2020.2990938

Cited by 15 publications

(11 citation statements)

References 17 publications

(18 reference statements)

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“…To incorporate fluctuations into the sound field of the model, at least 5 or 6 elements are needed to perform an analysis at each wavelength. Where c air is the speed of sound and f max is the maximum calculated frequency, the size of the grid element in the air domain is given by Equation ( 6) [18], [19].…”

Section: Cram Numerical Calculation a Calculation Of Sound Absorptionmentioning

confidence: 99%

Noise Reduction in Tractor Cabs Using Coupled Resonance Acoustic Materials

et al. 2022

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The noise level in a tractor cab directly affects the driving experience. Reducing the noise level in a tractor cab is an important means of improving the image of the product brand and protecting the physical and psychological health of employees. To reduce medium-and low-frequency noise in a tractor cab, the influence of the installation of coupled resonance acoustic materials (CRAMs) on tractor driver ear noise is investigated in this study. Theories for sound absorption by perforated plates and sound insulation by thin membranes are used to design a CRAM composed of a perforated plate, elastic membrane and additional mass. The acoustic impedance and sound absorption coefficient of the CRAM are obtained by an equivalent circuit method, and the resonance frequency of a local resonance system composed of an elastic membrane and additional mass is calculated. The effects of different hole diameters and porosities of the perforated plate on the CRAM sound absorption coefficient are compared. The results of tests performed using impedance tubes over a wide frequency range of 50 Hz∼1600 Hz show that the maximum sound absorption coefficient is 0.99 and several transmission loss peaks of 15 dB∼26 dB. Measurement of the acoustic response of the CRAM installed on the cab front panel shows that an ear noise reduction of approximately 1.3 dB(A) for a tractor working speed of 2200 rpm. The results show that the designed CRAM has a relatively good effect on reducing driver ear noise over a wide frequency band and is a feasible scheme for noise reduction in a tractor cab.INDEX TERMS Coupled resonance acoustic material (CRAM), tractor, noise reduction.

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Section: Cram Numerical Calculation a Calculation Of Sound Absorptionmentioning

confidence: 99%

Noise Reduction in Tractor Cabs Using Coupled Resonance Acoustic Materials

et al. 2022

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“…𝑋 and 𝐹 denote the displacement and excitation force vectors, respectively. Further, 𝑉 is the meshing vector of the planet 𝑖-ring pair, which can be expressed as follows: 𝑉 = cos𝛽sin𝛼 , cos𝛽cos𝛼 , sin𝛽, 𝑟 cos𝛽, −cos𝛽sinΘ, −cos𝛽cosΘ, −sin𝛽, −𝑟 cos𝛽 , (17) where Θ = 𝜙 − 𝛼 .…”

Section: Dynamic Model Of Single-state Planetary Gear Systemmentioning

confidence: 99%

“…However, the influence from the bearing stiffness is greater than that of the meshing stiffness [16]. Wang et al created a coupled dynamic model of a spur, gear-shaft-bearing system, to investigate the effects of the shaft flexibility on bearing response and radiated noise [17].…”

Section: Introductionmentioning

confidence: 99%

Dynamic characteristic analysis of a multi-power coupling transmission system considering non-torque loads

Ge¹,

Shu²,

Ma³

et al. 2022

J. vibroeng.

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The multi-power coupling transmission system (MPCTS) is an electromechanical coupling system, which typically use two or more induction motors to provide its driving torque. It is used in various industrial applications, such as cutter header driving systems of tunnel boring machinery, and yaw systems of wind turbines. In practical engineering applications, the loads borne by the MPCTS are very complex, including both torque loads and non-torque loads. Its dynamic characteristics are affected by both the gear transmission system and the drive motors. For this study, an electromechanical coupling dynamic model of the MPCTS, coupled with a gear transmission system, induction motor, and non-torque load, was constructed to analyze its dynamic characteristics under a non-torque load condition. The results showed increased offsets from the gear vibration equilibrium position, as well as deterioration in system load-sharing characteristics from increases in non-torque load and rotational speed. However, the influence of the non-torque load was significantly greater than that of the rotational speed.

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“…Multistage gearboxes are widely used in vehicles, aviation, aerospace, marine, and other fields [1]- [3]. In dynamic design, the establishment of a multistage gearbox dynamic model (MGDM) that can reflect the dynamic characteristics of the actual system is the basis for response prediction, system optimization, and vibration evaluation.…”

Section: Introductionmentioning

confidence: 99%

An Improved Dynamic Model Updating Method for Multistage Gearbox Based on Surrogate Model and Sensitivity Analysis

Qin

Liu

et al. 2021

IEEE Access

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Model updating can improve the accuracy of the multistage gearbox dynamic model (MGDM). However, owing to the time-consuming calculations and numerous parameters of the MGDM, previous updating methods are not suitable for updating the MGDM. To solve the above problems, an improved dynamic model updating method that is suitable for updating the MGDM is proposed in this paper. Compared with previous methods, this updating method presents two improvements: (1) In the iterative calculation process, the surrogate model is used to replace the time-consuming MGDM, thereby solving the problem of low computational efficiency; (2) before the updating calculation, Sobol sensitivity analysis is performed to screen out updating parameters from numerous parameters. This study shows that the accuracy of the updated MGDM improved by 18.52% compared with the initial model, thereby enabling a more accurate prediction of the dynamic characteristics of the actual system. This proves the effectiveness of the improved updating method.INDEX TERMS Gear, gearbox, dynamic model, updating method, sensitivity analysis, surrogate model.

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An Improved Computational Method for Vibration Response and Radiation Noise Analysis of Two-Stage Gearbox

Cited by 15 publications

References 17 publications

Noise Reduction in Tractor Cabs Using Coupled Resonance Acoustic Materials

Noise Reduction in Tractor Cabs Using Coupled Resonance Acoustic Materials

Dynamic characteristic analysis of a multi-power coupling transmission system considering non-torque loads

An Improved Dynamic Model Updating Method for Multistage Gearbox Based on Surrogate Model and Sensitivity Analysis

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