Friction-induced vibration and noise generation of instrument panel material pairs

Rorrer, Ronald A. L.; Juneja, Vikas

doi:10.1016/s0301-679x(02)00047-6

Cited by 20 publications

(7 citation statements)

References 8 publications

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“…In (16), After applying the Finite Element Method, the surface of the system is discretized. Assuming the normal velocity does not vary over the small area of each surface element, the integral in (19) x v  (17) with the number of surface elements e N and element area k A .…”

Section: Estimation Of the Radiated Sound By Calculating The Eqivalenmentioning

confidence: 99%

“…Therefore, further investigations have to be accomplished in order to account for these phenomenas in an early stage of product development and thus reducing the cost of secondary measures. Since the field of SAR noise generation is not limited to the automotive sector, it is well studied and documented in the literature (13)(14)(15)(16)(17)(18)(19) .…”

Section: Introductionmentioning

confidence: 99%

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Model Reduction Technique for Analysing Friction-Induced Vibrations and Radiated Sound

Weisheit

Marburg

2018

IJAE

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A novel approach for the calculation of friction induced vibration is presented and applied to a real life example. The balance equations of continuum mechanics representing the underlying physics are simplified and then solved numerically. First, a linearised model of the example system is built to extract modal parameters such as eigenvalues and eigenvectors. A subset of eigenvectors is then used to calculate the system's response due to friction related excitation. This non-linear vibration is calculated by utilising an explicit time integration scheme. With the use of a subset of eigenvectors the degree of freedom of the system is reduced drastically, leading to considerable reduction of computational effort. The solution is compared to results from adequate experiments. Although developed in a context of noise calculation in the automotive sector, this work focuses on the calculation of friction induced vibration, rather than on noise prediction. Nevertheless, as an example the resulting noise of the vibrating system is estimated by means of the Equivalent Radiated Power (ERP).

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Section: Estimation Of the Radiated Sound By Calculating The Eqivalenmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Model Reduction Technique for Analysing Friction-Induced Vibrations and Radiated Sound

Weisheit

Marburg

2018

IJAE

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“…In this process the vibration phenomenon ''squeal'' or ''chatter'', and the difference between them is that along with the frequency of vibration and noise high or low, to the extent of the ear is sensitive to noise, plus auxiliary sound level measuring device to differentiate grade, low frequency is vibration, high frequency is squeal. 13,14 If the shaft alignment is incorrect, the stick-slip effect could be infinitely amplified and predominates in a local process. This is because the incorrect shaft alignment contributes to the oversize loading in local area, which increases the obstruction of the viscous force of propeller shaft in operation.…”

Section: The Formation Conditions Of the Fiv Of The Rstbmentioning

confidence: 99%

Tribology investigation in marine rubber stern tube bearing with consideration of friction-induced vibration

Peng

Huang

2015

Proceedings of the Institution of Mechanical Engineers, Part J:

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This paper applies methods of theoretical analysis, lubrication calculation and test to study the vibration characteristics of marine rubber stern tube bearing (RSTB), and then the friction-induced vibration (FIV) phenomenon is investigated and the generation condition is analyzed. In order to study the tribological and vibration performance of the RSTB, a series of experiments are carried out, and then the stick-slip is the major precondition and the critical speed predominates within the motion. By increasing the specific pressure and the surface roughness of RSTB, it can lead to distinct vibration after the RSTB undergoes a transition from mild wear to severe wear. The analyses show how FIV generated and the results can be drawn as a function of effective measures to avoid abnormal vibration.

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“…Noise is also generated by friction. Friction on two different materials' contact surface in sliding motion influences the energy of noise and vibration [20].…”

Section: The Sound Generation Sourcementioning

confidence: 99%

A Comparative Study of the Monitoring of a Self Aligning Spherical Journal using Surface Vibration, Airborne Sound and Acoustic Emission

Raharjo¹,

Tesfa²,

Gu³

et al. 2012

J. Phys.: Conf. Ser.

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A Self aligning spherical journal bearing is a plain bearing which has spherical surface contact that can be applied in high power industrial machinery. This type of bearing can accommodate a misalignment problem. The journal bearing faults degrade machine performance, decrease life time service and cause unexpected failure which are dangerous for safety issues. Non-intrusive measurements such as surface vibration (SV), airborne sound (AS) and acoustic emission (AE) measurement are appropriate monitoring methods for early stage journal bearing fault in low, medium and high frequency. This paper focuses on the performance comparison using SV, AS and AE measurements in monitoring a self aligning spherical journal bearing for normal and faulty (scratch) conditions. It examines the signals in the time domain and frequency domain and identifies the frequency ranges for each measurement in which significant changes are observed. The results of SV, AS and AE experiments indicate that the spectrum can be used to detect the differences between normal and faulty bearing. The statistic parameter shows that RMS value and peak value for faulty bearing is higher than normal bearing.

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Friction-induced vibration and noise generation of instrument panel material pairs

Cited by 20 publications

References 8 publications

Model Reduction Technique for Analysing Friction-Induced Vibrations and Radiated Sound

Model Reduction Technique for Analysing Friction-Induced Vibrations and Radiated Sound

Tribology investigation in marine rubber stern tube bearing with consideration of friction-induced vibration

A Comparative Study of the Monitoring of a Self Aligning Spherical Journal using Surface Vibration, Airborne Sound and Acoustic Emission

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