Point Distributed Static Load of a Rough Elastic Contact Can Cause Broadband Vibrations During Rolling

Feldmann, J.

doi:10.1006/mssp.2001.1461

Cited by 7 publications

(3 citation statements)

References 26 publications

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“…This assumption, for instance, offers various approaches from literature [5][6][7]. The author's investigation [8] could not clearly verify impulse excitation as a main vibration mechanism in purely rolling contacts, especially with respect to the amount of vibration generated.…”

Section: Introductionmentioning

confidence: 93%

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Roughness-Induced Vibration Caused by a Tangential Oscillating Mass on a Plate

Feldmann

2012

Journal of Vibration and Acoustics

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This work examines the dynamic behavior of a system consisting of a mass-block on the rough surface of a simply supported plate, harmonically excited in the tangential direction. The vertical excitation emerges from roughness, tracked by the mass-block. Low-frequency sliding results in high-frequency vertical excitation up to the ultrasonic range. The conditions of the elastic contact between the two bodies are modeled in the form of vertical contact stiffness. A specific friction law with a behavior similar to an elastically coupled coulomb damper represents the tangential direction. The model allows for the study of the interaction between the tangential friction behavior and the vertical roughness-induced vibrations. Parameters of interest are friction velocity, mass-block weight, surface roughness, and contact material. Because of nonlinearities, the theoretical model must be solved within the time domain. The theoretical results are verified through experimental results of a corresponding setup. The subject combines material science, contact mechanics, and structural dynamics.

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Section: Introductionmentioning

confidence: 93%

“…Because of rough contact, a subprogram was used to calculate the vertical contact stiffness and both the number and location of mean contact points in the nominal contact patch. Refer to [8] for the primary theoretical aspects. Calculations are based on the well-known Hertzian nonlinear contact theory (for example, refer to Ref.…”

Section: Vertical Contactmentioning

confidence: 99%

Roughness-Induced Vibration Caused by a Tangential Oscillating Mass on a Plate

Feldmann

2012

Journal of Vibration and Acoustics

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“…The proposed model assumes a stochastic source of vibration excitation, which resultsfrom metallic contact between bearing elements during rolling. It is inspired from Feldmann [17] who introduced a microscale surface roughness model, based on an elastic rough contact models with a pseudo-random distribution of the contact points, which produces a broadband random noise during the ball rolling process.Behzad et al [16] A monitoring system and a specific protocol have been established and implemented in aerospace industry, in order to evaluate the criterion on spindles under realistic conditions. Finally, the relevancy of SBN is studied by comparison with four classical criteria, depending on three required conditions for bearing monitoring.…”

Section: Fig 1 Examples Of Cutting Forcesmentioning

confidence: 99%