Research on Flexibility of Bearing Rings for Multibody Contact Dynamics of Rolling Bearings

Yao, Tingqiang; Chen, Yilin; Huang, Yayu

doi:10.1016/j.proeng.2012.01.1071

Cited by 11 publications

(5 citation statements)

References 10 publications

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“…Because the initial contact state of the BCM is same as the state of undamped system, the start value of nonlinear frequency of the BCM is the undamped frequency(149.7Hz). The results of nonlinear frequencies at certain state can be validated using Gupta and other classical methods [4,6]. In figure 3a, the nonlinear frequency of the RCM is higher, the bandwidth is wider and the peak is smoother than that of the BCM under the same conditions.…”

Section: A Contact Dynamics Modelsmentioning

confidence: 90%

“…The contact nonlinearity is also called state nonlinearity. The constrainted multibody systems usually have contact nonlinear dynamics characteristics and vibration response, which are affected by dynamic contact behavior between the parts with different geometric parameters, physical parameters, motion conditions and load parameters [1][2][3][4]. As known the rolling bearings are typical multibody systems, which have multibody contact dynamics behaviour and nonlinear vibration response.…”

Section: Introductionmentioning

confidence: 99%

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A Research on Nonlinear Frequencies of Multibody Contact Systems

Yao¹,

Tang²,

Chen³

2012

Proceedings of the 1st International Conference on Mechanical Engineering and Material Science

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The paper has discussed the effect of dynamic contact behaviour on dynamics characteristics and contact nonlinear frequencies of multibody systems with geometric, physical and load parameters and motion conditions. In the work presented, a linearization method for contact nonlinear frequencies of constrained multibody systems is investigated. The nonlinear equations of motion of multibody systems are expressed indirectly in terms of the variations of independent coordinates, velocities and accelerations. The Lagrange multipliers are eliminated to get linearized equations of motion. The simulation analysis of kinematics, dynamics and contact nonlinear frequencies of numerical examples have been solved simultaneously. It shows that the frequencies of multibody systems with dynamic contact behaviours are nonlinear, timevarying and periodic with the effect of load-deformation factor, contact stiffness, load, motion conditions and initial conditions. This linearization method is available to research the contact nonlinear frequencies of rolling bearings.

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Section: A Contact Dynamics Modelsmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

A Research on Nonlinear Frequencies of Multibody Contact Systems

Yao¹,

Tang²,

Chen³

2012

Proceedings of the 1st International Conference on Mechanical Engineering and Material Science

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“…Bearing ring bending deformation can be considered a planar problem. According to the thin-walled ring plane bending theory [25], the differential equation for the radial deflection deformation of the ring at the arbitrary azimuth φ is given by…”

Section: Theoretical Analysis 21 Mathematical Modelmentioning

confidence: 99%

Study on Ring Deformation and Contact Characteristics of Thin-Walled Bearing for RV Reducer

Wang,

Liu

2024

Applied Sciences

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The thin-walled rings of the RV reducer main bearings are prone to structural elastic deformation, which can significantly change the bearing mechanical characteristics. According to the actual assembly state of the RV reducer, the simulation model of the planetary frame–main bearings–pin gear housing is established considering the ring deformation. The model was used to calculate and comparatively analyze the ring deformation and contact characteristics of thin-walled bearings under rigid and flexible conditions, on the basis of which the mechanism of ring deformation was described, and the effects of load conditions, ring thickness and radial clearance on ring deformation, flexible contact characteristics, and ultimate carrying capacity were analyzed. The results show that the distribution of contact loads is the main factor affecting the ring deformation. The ring deformation can optimize the bearing contact characteristics, and the greater the deformation, the more pronounced the optimization effect. However, excessive ring deformation makes the contact ellipse more susceptible to truncation, which, in turn, reduces the ultimate carrying capacity. This study indicates a 38.2% decrease in the carrying capacity of the flexible ring model compared to that of the rigid ring model. In this paper, the effect of ring deformation on bearing mechanical characteristics is deeply discussed. The research results have important guiding significance for the structural optimization design of thin-walled bearings.

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“…Because that the data obtained is discrete, and the early fault symptom and the overall process of fault occurrence unable be found, the off-line monitoring method is replaced by the on-line one [2]. Wire communication is adopted in most of the current on-line monitoring method, which is widely used and has many advantages, such as real-time capability, high efficiency, etc.…”

Section: Introductionmentioning

confidence: 99%

On-line Monitoring Method of Bearing in Rotating Machinery Based on Wireless Sensor Networks

Wang¹,

Liang²,

Wang³

2018

Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)

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Abstract.For acquiring the precise parameters of bearing in rotating machinery, and further to study the bearing characteristics, and considering the difficult and bottleneck problems with wired monitoring method for bearing, the on-line monitoring method of bearing based on wireless sensor networks (WSNs) is proposed in this paper. Two typical engineering applications, namely the bearing of freight train and the water-lubricated bearing are studied. The key issues in application of WSNs, including the energy consumption, the routing protocol, the design of node, the compressive and coding algorithm of vibration data, and the Doppler effect are solved. Finally, the simulation and experiment results show the effective of the wireless method proposed.

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Research on Flexibility of Bearing Rings for Multibody Contact Dynamics of Rolling Bearings

Cited by 11 publications

References 10 publications

A Research on Nonlinear Frequencies of Multibody Contact Systems

A Research on Nonlinear Frequencies of Multibody Contact Systems

Study on Ring Deformation and Contact Characteristics of Thin-Walled Bearing for RV Reducer

On-line Monitoring Method of Bearing in Rotating Machinery Based on Wireless Sensor Networks

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