Novel Diamond Disc Diagnostic Method Based on 'Dry' Coefficient of Friction Measurements

2019 ◽  
Vol 27 (1) ◽  
pp. 645-650
Author(s):  
Yasa Sampurno ◽  
Fransisca Sudargho ◽  
Anand Meled ◽  
Yun Zhuang ◽  
Ara Philipossian
Keyword(s):  
Coefficient Of Friction ◽  
Diagnostic Method ◽  
Friction Measurements ◽  
Diamond Disc

Diamond Disc Diagnostic Method Based on “Dry” Coefficient of Friction Measurements

2010 ◽  
Vol 13 (12) ◽  
pp. H457
Author(s):  
Anand Meled ◽  
Yasa Sampurno ◽  
Fransisca Sudargho ◽  
Yun Zhuang ◽  
Ara Philipossian
Keyword(s):  
Coefficient Of Friction ◽  
Diagnostic Method ◽  
Friction Measurements ◽  
Diamond Disc

Floor Slipperiness Measurement in a Food Factory

2013 ◽  
Vol 303-306 ◽  
pp. 769-772
Author(s):  
Kai Way Li ◽  
Ching Chung Chen ◽  
Li Wen Liu ◽  
Chih Yong Chen
Keyword(s):  
Coefficient Of Friction ◽  
Safety Standard ◽  
The Usa ◽  
The Coefficient Of Friction ◽  
Friction Measurements ◽  
Ergonomic Interventions ◽  
Northern Taiwan

Floor slipperiness assessment was conducted in a food factory in northern Taiwan. Three areas in the popcorn sector of the factory were measured. The friction measurements were conducted using the Brungraber Mark II slipmeter. A total of 96 measurements of the coefficient of friction on the floor were conducted. In addition, six employees were interviewed concerning their experiences of slipping and falling in the sector and their perception of floor slipperiness. The results showed that all the readings in the measurement areas were lower than 0.5, a safety standard commonly adopted in the USA. All the interviewees reported that they had the experiences of slipping without falling in the sector. All of them reported the floor in the popping area was “extremely slipperiness.” Ergonomic interventions are required and in this sector.

Coefficient of Friction Measurements on Transfemoral Amputees

Biotribology ◽  
2020 ◽  
Vol 22 ◽  
pp. 100126
Author(s):  
Sofía C. Henao ◽  
Simón Cuartas-Escobar ◽  
Juan Ramírez
Keyword(s):  
Coefficient Of Friction ◽  
Transfemoral Amputees ◽  
Friction Measurements

scholarly journals Wax-oil lubricants to reduce the shear between skin and PPE

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kian Kun Yap ◽  
Manoj Murali ◽  
Zhengchu Tan ◽  
Xue Zhou ◽  
Luli Li ◽  
...  
Keyword(s):  
Olive Oil ◽  
Coefficient Of Friction ◽  
Static Friction ◽  
Mineral Oil ◽  
The Coefficient Of Friction ◽  
Friction Measurements ◽  
Lubricant Application ◽  
Static Coefficient Of Friction

AbstractProlonged use of tight-fitting PPE, e.g., by COVID-19 healthcare workers leads to skin injuries. An important contributor is the shear exerted on the skin due to static friction at the skin-PPE interface. This study aims to develop an optimised wax-oil lubricant that reduces the friction, or shear, in the skin-PPE contact for up to four hours. Lubricants with different wax-oil combinations were prepared using beeswax, paraffin wax, olive oil, and mineral oil. In-vivo friction measurements involving seven participants were conducted by sliding a polydimethylsiloxane ball against the volar forearms to simulate the skin-PPE interface. The maximum static coefficient of friction was measured immediately and four hours after lubricant application. It was found that the coefficient of friction of wax-oil lubricants is mainly governed by the ratio of wax to oil and the thermal stability and morphology of the wax. To maintain long-term lubricity, it is crucial to consider the absorption of oil into the PPE material. The best performing lubricant is a mixture of 20 wt% beeswax, 40 wt% olive oil, and 40 wt% mineral oil, which compared to unlubricated skin, provides 87% (P = 0.0006) and 59% (P = 0.0015) reduction in instantaneous and 4-h coefficient of friction, respectively.

Recent developments in coefficient of friction measurements at the rail/wheel interface

Wear ◽  
2002 ◽  
Vol 253 (1-2) ◽  
pp. 114-123 ◽  
Author(s):  
H Harrison ◽  
T McCanney ◽  
J Cotter
Keyword(s):  
Coefficient Of Friction ◽  
Recent Developments ◽  
Friction Measurements

Non-linear adsorption modeling of fatty esters and oleic estolide esters via boundary lubrication coefficient of friction measurements

Wear ◽  
2007 ◽  
Vol 262 (5-6) ◽  
pp. 536-544 ◽  
Author(s):  
Todd L. Kurth ◽  
Jeffrey A. Byars ◽  
Steven C. Cermak ◽  
Brajendra K. Sharma ◽  
Girma Biresaw
Keyword(s):  
Coefficient Of Friction ◽  
Boundary Lubrication ◽  
Fatty Esters ◽  
Adsorption Modeling ◽  
Non Linear ◽  
Friction Measurements

Investigation of Nanotribological Characterization of Stretched European Hair Using Atomic Force Microscopy

2013 ◽  
Vol 821-822 ◽  
pp. 274-277
Author(s):  
Tao Chen ◽  
Hong Ling Liu ◽  
Wei Dong Yu
Keyword(s):  
Atomic Force Microscopy ◽  
Coefficient Of Friction ◽  
Adhesive Force ◽  
Water Molecules ◽  
Force Microscopy ◽  
Atomic Force ◽  
Friction Measurements ◽  
Stretching Ratio ◽  
Hair Surface

In order to understand the influence of stretching on the nanotribological properties of human hair, the European hair with stretching ratios at 20, 40, 60 and 80% were studied using atomic force microscopy (AFM). The results show that appropriate stretching ratios (40-60%) make the European hair surface smoother and the friction measurements also verify the result. When the stretching ratio is 80%, the European hair has the highest coefficient of friction. The reason is that cuticle damages lead to the local ratchet and collision between AFM tip and the sample obviously increased. With the increase of stretching ratios, the adhesive force of European hair is nonlinear change, which is attributed to the influence of contact area, water molecules absorbed and the amount of polar molecules.

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