A Fundamental Study on Frictional Noise : 1st Report, The generating mechanism of rubbing noise and squeal noise

Yokoi, Masayuki; Nakai, Mikio

doi:10.1299/jsme1958.22.1665

Cited by 33 publications

(11 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is coherent with the results reported in the literature. Indeed, Yakoi et al 12 showed that squeaking is a self-excited vibration induced by friction, and is generated if the gradient of friction coefficient to the sliding velocity is negative and above a threshold. This kind of vibration is likely due to an instability in the contact, which is generated because the static friction coefficient is much higher than the dynamic friction coefficient.…”

Section: Discussionmentioning

confidence: 99%

In vitro investigation of friction under edge‐loading conditions for ceramic‐on‐ceramic total hip prosthesis

Sariali

Stewart

Jin

et al. 2010

Journal Orthopaedic Research

View full text Add to dashboard Cite

Edge-loading generates higher wear rates in ceramic-on-ceramic total hip prosthesis (THP). To investigate the friction coefficient (FC) in these conditions, three alumina ceramic (Biolox Forte) 32 mm-diameter components were tested using a hip friction simulator. The cup was positioned with a 758 abduction angle to achieve edge-loading conditions. The motion was first applied along the edge and then across the edge of the cup. First, tests were conducted under lubricated conditions with 25% bovine serum. Next, to simulate an extremely high contact pressure, the tests were run with the addition of a third body alumina ceramic chip inserted between the edge of the cup and the head. Engineering blue was used to analyze the contact area. Reference values were determined using a 08 cup abduction angle. Edge loading was achieved. The FC increased by three-to sixfold when the motion was applied along the edge, and by 70% when the motion was applied across the edge. However, the FC value was still low (about 0.1), which is similar to metal-on-metal THP. With the third body alumina ceramic particle inserted, the FC was 26 times higher than in the ideal conditions and intermittent squeaking occurred. High cup abduction angles may generate edge-loading and an increase in the friction coefficient for ceramic THP. Keywords: friction coefficient; ceramic; hip prosthesis; edge loading; squeaking Ceramic-on-ceramic retrievals from total hip prostheses (THP) show higher wear rates than those predicted on simulators under normal conditions. 1 This discrepancy is related to edge loading that can occur clinically due to lateralization (microseparation) of the femoral head relative to the acetabular cup, causing a localized increase in stress and wear. Although a number of experimental wear simulator studies have been conducted that reproduce edge loading under microseparation conditions, the general tribological mechanism under this adverse condition is unclear. Friction levels, for example, have not been reported under these edgeloading conditions. We hypothesized that the friction coefficient (FC) increases under edge-loading conditions. A study to test such an hypothesis is important as it may assist in the understanding of clinical hip noises such as squeaking. 2,3 In addition, FC values are needed to develop computational models of contact mechanics and wear prediction under edge loading conditions, which can help improve implant design. Our goals were to determine the FC under edge loading for alumina ceramic-on-ceramic THP and to investigate the effect of the addition of alumina debris on the FC and the generation of squeaking. MATERIALS AND METHODS SpecimensThree Biolox Forte heads and liners were tested on the Leeds PROSIM 1 friction simulator. The components had a diameter of 32 mm, with a radial clearance of 30 mm. All specimens were manufactured by Ceramtec (Plochingen, Germany). Before testing, specimens were cleaned with a washing-up liquid, rinsed in water, and then ultrasonically cleaned in an isopropanol ...

show abstract

Section: Discussionmentioning

confidence: 99%

In vitro investigation of friction under edge‐loading conditions for ceramic‐on‐ceramic total hip prosthesis

Sariali

Stewart

Jin

et al. 2010

Journal Orthopaedic Research

View full text Add to dashboard Cite

show abstract

“…Yokoi and Nakai [9,10] studied friction-induced squeal noise for an experimental rod pressed against a rotating disk (equivalent to the mass-on belt system). Experiments showed that sequel occurred at a natural frequency of the system, increasing in sound level as surfaces are worn and as the coe$cient of friction increases.…”

Section: Introductionmentioning

confidence: 99%

Using Fast Vibrations to Quench Friction-Induced Oscillations

Thomsen

1999

Journal of Sound and Vibration

142

View full text Add to dashboard Cite

“…According to Yokoi and Nakai's classic research [32], friction noise can be classified into two categories: rubbing noise and squealing noise. Rubbing noise usually occurs with relatively low contact pressure and at low sound pressure levels.…”

Section: Effect Of Initial Surface Topographies On Sound Pressurementioning

confidence: 99%

On the relationships among wheel–rail surface topography, interface noise and tribological transitions

Lyu

Olofsson

Lindgren

et al. 2015

Wear

View full text Add to dashboard Cite

A Fundamental Study on Frictional Noise : 1st Report, The generating mechanism of rubbing noise and squeal noise

Cited by 33 publications

References 0 publications

In vitro investigation of friction under edge‐loading conditions for ceramic‐on‐ceramic total hip prosthesis

In vitro investigation of friction under edge‐loading conditions for ceramic‐on‐ceramic total hip prosthesis

Using Fast Vibrations to Quench Friction-Induced Oscillations

On the relationships among wheel–rail surface topography, interface noise and tribological transitions

Contact Info

Product

Resources

About