Finite-element modeling of the failure of interference-fit planet carrier and shaft assembly

Hao, Dongsheng; Wang, Delun

doi:10.1016/j.engfailanal.2013.04.029

Cited by 29 publications

(18 citation statements)

References 17 publications

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“…Hao and Wang [11] compared the calculated pressure by Lame's equations for thick-wall cylinders by using the finite element model of interference fit. However, the friction coefficient is still a source of uncertainty in finite element of interference shaft/bush joints.…”

Section: Modeling Of the Extracting Strengthmentioning

confidence: 99%

Friction coefficient estimation in shaft/bush interference using finite element model updating

Seifi

Abbasi

2015

Engineering Failure Analysis

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Section: Modeling Of the Extracting Strengthmentioning

confidence: 99%

Friction coefficient estimation in shaft/bush interference using finite element model updating

Seifi

Abbasi

2015

Engineering Failure Analysis

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“…Xing et al 11 and Jin et al 12 proposed a multi-body dynamic (MBD) model of a wind turbine gearbox to study the gearbox dynamics. Hao et al 13 proposed an FE model of a planetary gear system with interference-fit planet carrier and shaft to study the system failure mode. Amabili and Rivola 14 studied the stability of a spur gear system with the time-varying meshing stiffness.…”

Section: Introductionmentioning

confidence: 99%

Effect of the bearing clearance on vibrations of a double-row planetary gear system

Liu

Ding

Wang

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part K:

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The bearing clearance, external torque, and input speed can greatly affect vibrations of the planetary gear system. The double-row planetary gear systems are commonly used in the gearbox of special vehicles, which are the key parts to obtain a larger gear ratio. Although many works have been presented to study those factors on vibrations of the single-row planetary gear system, a few works were focused on vibrations of the double-row planetary gear system with the bearing clearance. To overcome this problem, a multi-body dynamic model of a double-row planetary gear system with six planet bearings and one supported bearing of the sun gear is presented. This model is the main part of a gear box transmission system. The new model is developed for studying the effect of the bearing clearance on the planetary system. The meshing stiffness and damping between the gears are obtained by current methods in the listed references, as well as the contact stiffness and damping in bearings. The liner stiffness and damping model is used. The effects of the bearing clearance, external torque, and input speed on vibrations of the system are analyzed. The results show that vibrations of the ring gear and sun gear decrease with the increment of the external torque and increase with the increment of the input speed. Moreover, a reasonable bearing clearance can be helpful for reducing system vibrations for some mating external torque and input speed conditions. The results can provide some guidance to find new method to reduce vibrations and increase the service life of planetary gear systems.

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“…Yan et al [8] established the distribution rule of prestressing of the gear in the interference fit. Zhu [9] based on ANSYS, analyzed the relationship of the interference between the keyless joint and the maximum prestressing; Zhao et al [10] based on ANSYS, built the prestressed mode of the planetary gear train of the transmission; Wang [11] analyzed the influence of prestressing on interference fit of dump truck axle; Kim et al [12] simulated the hot assembly procedure of the external gear and axis in the interference fit, and predicted the amount of deformation of the teeth profiles, considering the shrink-fitting load and amount of expansion of the gear with major process variables, and the amount of shrink-fitting interference; Rahman et al [13] established the relationship between the friction coefficient and the stress of the contact area by studying the shaft and bushing of the interference joint; Hao et al [14] studied the contact stress of the interference fit of the planetary carrier based on the finite element method; and Frederic et al [15] obtained the reduction coefficient of the fretting fatigue strength of the interference joint. These studies have proposed effective calculation methods for the design of interference fit gear or similar joints.…”

Section: Introductionmentioning

confidence: 99%

Effects of Prestressing of the Ring Gear in Interference Fit on Flexural Fatigue Strength of Tooth Root

Yang

Xia

2019

Chin. J. Mech. Eng.

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When the gearbox body interference is connected to the ring gear, prestressing occurs in the ring gear, which has a significant impact on the strength and life of the gear. Research on the prestressing of the inner ring gear is in the preliminary stage, and the distribution rule of the prestressing and the influence of each parameter on the interference prestressing have not been derived. In this paper, based on the method of calculating the prestressing of the thick cylinder in interference fit, the ring gear is found to be equivalent to a thick cylinder, and the distribution rule of prestressing of the ring gear in the interference fit is inferred. Then, by modeling and analyzing the gearbox body and ring gear in the interference fit using ABAQUS, the distribution rule of prestressing the ring gear in the interference fit is obtained through a numerical simulation. Finally, the prestressing of the ring gear in the interference fit is measured using X-ray diffraction, and the distribution rule of prestressing of the ring gear in the interference fit is obtained through analysis. Compared with the distribution rule of prestressing in theory, numerical simulation, and experiment, the theoretical distribution rule of prestressing is amended through a statistical method, and a more accurate formula of prestressing is obtained. Through the calculation of the stress and bending moment in the dangerous section of the ring gear through prestressing, the formula for checking the tooth root flexural fatigue strength in the interference fit prestressing is inferred. This research proposes a tooth root bending strength conditional formula for the inner ring gear of the interference fit, which serves as a guide for the design and production of the actual interference joint inner ring gear.

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Finite-element modeling of the failure of interference-fit planet carrier and shaft assembly

Cited by 29 publications

References 17 publications

Friction coefficient estimation in shaft/bush interference using finite element model updating

Friction coefficient estimation in shaft/bush interference using finite element model updating

Effect of the bearing clearance on vibrations of a double-row planetary gear system

Effects of Prestressing of the Ring Gear in Interference Fit on Flexural Fatigue Strength of Tooth Root

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