Numerical calculation of ball bearing excitation and application in multi-body dynamics simulation

Fu, Shengping; Chen, Xiang; Wu, Jingyan

doi:10.1109/caidcd.2009.5374913

2009 IEEE 10th International Conference on Computer-Aided Industrial Design &Amp; Conceptual Design 2009

DOI: 10.1109/caidcd.2009.5374913

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Numerical calculation of ball bearing excitation and application in multi-body dynamics simulation

Shengping Fu

Xiang Chen

Jingyan Wu

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Antifriction Bearings Damage Analysis Using Experimental Data Based Models

Desavale¹,

Venkatachalam

Chavan³

2013

Journal of Tribology

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Diagnosis of antifriction bearings is usually performed by means of vibration signals measured by accelerometers placed in the proximity of the bearing under investigation. The aim is to monitor the integrity of the bearing components, in order to avoid catastrophic failures, or to implement condition based maintenance strategies. In particular, the trend in this field is to combine in a simple theory the different signal-enhancement and signal-analysis techniques. The experimental data based model (EDBM) has been pointed out as a key tool that is able to highlight the effect of possible damage in one of the bearing components within the vibration signal. This paper presents the application of the EDBM technique to signals collected on a test-rig, and be able to test damaged fibrizer roller bearings in different working conditions. The effectiveness of the technique has been tested by comparing the results of one undamaged bearing with three bearings artificially damaged in different locations, namely on the inner race, outer race, and rollers. Since EDBM performances are dependent on the filter length, the most suitable value of this parameter is defined on the basis of both the application and measured signals. This paper represents an original contribution of the paper.

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Antifriction Bearings Damage Analysis Using Experimental Data Based Models

Desavale¹,

Venkatachalam

Chavan³

2013

Journal of Tribology

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Analysis of the Influence of Transmission Housing Elasticity on the Vibration Characteristics of Gear Shafting under Coupling Effect

Huang

Luo

2021

Shock and Vibration

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The influences of transmission housing elastic deformations on the vibration gear shafting characteristics are studied. The vibration model of the vehicle transmission system in consideration of the dynamics coupling of the housing and the gear shafting is constructed. Aiming at a vehicle transmission, the mathematical model of the bending and torsional gear shafting vibrations is established based on the lumped mass method. Following the elastic treatment of the box, a comprehensive stiffness model at the bearing considering the housing deformation is proposed to achieve the dynamic coupling between the box and the gear shafting system. Furthermore, the gear shafting vibration characteristics considering housing deformations are obtained by integrating multisource dynamic excitation, which is solved using an iterative method. The results are verified through a bench test. And, it shows that the elastic deformation of the housing aggravates the gear shafting vibration (bending and torsional coupled vibration). The peak frequency mostly remains the same. The maximum speed changes amplitude and associated root mean square value (calculated at the gear position) increase by 55.5% and 59.6%, respectively. Next, the maximum bearing support force and its root mean square value are increased by 63.7% and 97.6%, respectively. Finally, the largest increase in maximum vibration acceleration at the measuring point and the simulated root mean square value are 90% and 63.1%, respectively. It is concluded that the research results provide a theoretical basis for the study of transmission dynamic reliability.

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Numerical calculation of ball bearing excitation and application in multi-body dynamics simulation

Cited by 2 publications

References 2 publications

Antifriction Bearings Damage Analysis Using Experimental Data Based Models

Antifriction Bearings Damage Analysis Using Experimental Data Based Models

Analysis of the Influence of Transmission Housing Elasticity on the Vibration Characteristics of Gear Shafting under Coupling Effect

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