Dynamic modeling and vibration analysis of double row cylindrical roller bearings with irregular-shaped defects

Li, Xinbin; Liu, Jing; Ding, Shizhao; Xu, Yajun; Zhang, Yu; Xia, Min

doi:10.1007/s11071-023-09164-5

Cited by 36 publications

(2 citation statements)

References 42 publications

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“…They studied the different impact vibration mechanisms of the cracked PGS with the variation in the rotational speed. Li et al [16,17] developed a PGS model with the wear process of the planetary bearing. Their results indicated that the degrees of wear differ greatly for the inner and outer planetary bearings.…”

Section: Introductionmentioning

confidence: 99%

Vibration Analysis of the Double Row Planetary Gear System for an Electromechanical Energy Conversion System

Li,

Xu,

Liu

et al. 2024

Lubricants

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Electromechanical energy conversion systems (EECSs) are widely used in vehicles to combine the double-row planetary gear system (DRPGS) with high transmission efficiency and high-performance motors. The integrated structure of the ring gear and motor rotor have put forward higher demands for the vibration performance of the DRPGS. This paper establishes a multibody dynamic model of the DRPGS for an EECS. Based on the kinetic relationship between the gear pairs and bearing components, the dynamic equations of the DRPGS are derived. The DRPGS model is simulated under different operating conditions. The results are compared to reveal the relationships between the system vibration and the operating speed and load torque. The typical conditions are selected to study the effectiveness of the structural parameters in reducing the DRPGS vibrations. The structural parameters, including the bearing clearance, the ball numbers, the gear tooth modification amount, and length, are comprehensively discussed. Several suggestions for the low-vibration design of the DRPGS for the EECS are provided.

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Section: Introductionmentioning

confidence: 99%

Vibration Analysis of the Double Row Planetary Gear System for an Electromechanical Energy Conversion System

Li,

Xu,

Liu

et al. 2024

Lubricants

Self Cite

View full text Add to dashboard Cite

show abstract

“…transmission systems. However, gear components are highly susceptible to failure in practical scenarios due to inadequate lubrication conditions, manufacturing errors, and imperfect mating surfaces [1,2]. Furthermore, harsh working environments and varying overload conditions exacerbate the occurrence of faults [3].…”

Section: Introductionmentioning

confidence: 99%

Application of wavelet dynamic joint adaptive network guided by pseudo-label alignment mechanism in gearbox fault diagnosis

Shao,

Jiang,

Zhang

et al. 2024

Meas. Sci. Technol.

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In practical scenarios, gearbox fault diagnosis faces the challenge of extremely scarce labeled data. Additionally, variations in operating conditions and differences in sensor installations exacerbate data distribution shifts, significantly increasing the difficulty of fault diagnosis. To address the above issues, this paper proposes a Wavelet Dynamic Joint Self-Adaptive Network guided by a Pseudo-Label Alignment Mechanism (WDJSN-DFL). First, the Wavelet-Efficient Convolution Module (WECM) is designed based on wavelet convolution and efficient attention mechanisms. This module is used to construct a multi-wavelet convolution feature extractor to extract critical fault features at multiple levels. Secondly, to improve the classifier's discriminability in the target domain, a transitional clustering-guided pseudo-label alignment mechanism (DFL) is developed. This mechanism can capture fuzzy classification samples and improve the pseudo-label quality of the target domain. Finally, a dynamic joint adaptive algorithm (DJSN) is proposed, which is composed of Joint Maximum Mean Square Discrepancy (JMSD) and Joint Maximum Mean Discrepancy (JMMD). The algorithm can adaptively adjust according to the dynamic balance factor to minimize the domain distribution discrepancy. Experiments on two different gearbox datasets show that WDJSN-DFL performs better in diagnostic scenarios under varying load conditions and different sensor installation setups, validating the proposed method's effectiveness and superiority.

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An optimal control method of internal resonances for vibration isolation system using an aperiodic isolator

Liu,

Pan

et al. 2024

Acta Mech. Sin.

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Dynamic modeling and vibration analysis of double row cylindrical roller bearings with irregular-shaped defects

Cited by 36 publications

References 42 publications

Vibration Analysis of the Double Row Planetary Gear System for an Electromechanical Energy Conversion System

Vibration Analysis of the Double Row Planetary Gear System for an Electromechanical Energy Conversion System

Application of wavelet dynamic joint adaptive network guided by pseudo-label alignment mechanism in gearbox fault diagnosis

An optimal control method of internal resonances for vibration isolation system using an aperiodic isolator

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