... vehicle dynamics braking tyre suspension mechanism friction stability self-excited vibration Abstract This study is aimed at deepening the stability analysis of a braked wheel of a road car, including suspension mechanism, and focusing on the interaction effects between the friction...

..., Texas, USA Patricia Iglesias Rochester Institute of Technology Rochester, New York, USA ABSTRACT Although lubricants play an essential role in reducing wear and friction in mechanical systems, environmental issues persist. In the past decades, Ionic Liquids (ILs) have arisen as environmentally friendly...

... to tribological problems between the bearing surfaces. Adding textures to the surfaces in contact has garnered increased attention in the tribological community as a method to reduce friction and wear of bearing surfaces. Intentionally created dimples on either or both contacting surfaces can serve as lubricant...

... is investigated. Measurements of under-head friction coefficient are correlated to the vibration loosening results. AM parts are manufactured in 3 different orientations, affecting the angle between the deposition planes and the underhead surface. Loosening rates of AM parts are compared to cast and AM samples...

... of the reciprocating friction tests, compared to those uniformed irradiated specimens, patterning irradiation processed surfaces show obviously more stable friction than the as-received metal surface. More importantly, much longer lifetime has been obtained, indicating the enhanced wear resistance. According...

... model, explicit knowledge of the thermo-mechanical loads and relative speeds between the tribological partners is of central importance. Therefore, a special open tribometer will be used to parameterize a friction model depending on relative speeds. Both, uncoated and coated tools are used. To reduce...

... Abstract Friction and wear are inherent problems in mechanical systems, leading to about 23% world’s total energy usage. However, energy losses could be reduced by up to 40% using high-performance lubricants. In order to meet these objectives, Ionic liquids have been studied for more than two...

... in each pass until the desired geometry is achieved. Friction between the tool and the formed sheet can have detrimental effects on the final geometry. The increase in friction coefficient can result in a significant decrease in sheet formability due to excessive thinning and subsequent fracture...

... behaviors of different lubricants on textured surfaces were then examined based on contact angle measurement. All the frictional tests were carried out on the ball-on-flat reciprocating tribometer under the same working conditions. Lastly, the surface morphology of the wear tracks on Ti6Al4V and tungsten...

... design and useful life, and wheel design and useful life. skateboard bearing resistance friction coefficient velocity ROLLING RESISTANCE OF A SKATEBOARD Thomas Maull1, Lauren Eichaker, Sean Buczek, and Troy Graham SEA Limited Columbus, OH ABSTRACT Skateboards have been used as a means...

... mechanics cardiac lead contact stress friction wear EFFECT OF INTERFACIAL CONTACT FORCES AND LAY RATIO IN CARDIAC LEAD OUTER INSULATION DUE TO INTERNAL CABLE MOTION Gnanavel B K1, Raja G2, Chandramohan D3 1Professor, Saveetha Engineering College, Chennai, Tamilnadu, India 2Research Scholar...

... mechanical properties of this material. Numerical modeling can be utilized to evaluate the influence of such important manufacturing parameters as the extrusion rate, temperature, geometry of the die, back pressure and friction effects in the ECAE of polyethylenes. In this paper we focus on the development...

... Abstract Residual Stress distribution and parametric influence of friction are studied for the split sleeve cold expanded holes in Al 2024 T351 alloy, by developing a three-dimensional finite element model of the process. Fastener holes in the alloy are necessary for the manufacturing process...

... Abstract The pre-rolling coefficient of friction is determined using a method based on theoretical model for various contact material interfaces. In this experiment, a designed two-ball based pendulum oscillating on flat material is used in a pure rolling without any mechanical or physical...

... Abstract Around 23% of the world’s energy consumption results from rubbing contacts, in which 20% is used to overcome friction and 3% is due to wear and the consequent failure. The implementation of lubricants and effective lubricant additives are indispensable to reduce friction and wear...

... titanium limits its application in aerospace and shipbuilding industry. Minimum quantity lubrication (MQL) has emerged as a new lubrication technique to achieve sustainable and profitable machining, but multiple studies show that conventional cutting fluid in MQL is not sufficient to reduce the friction...

...-rates of 10 5 – 10 6 s −1 . The Hugoniot constants, yield strengths, and friction coefficients were inferred from velocity measurements taken from the back surface of the targets. Polymer Hugoniots were found to closely approximate those previously found in literature, with nonlinear curvature at low...

... in producing oil and gas from large areas with smaller footprint on the surface. Though expensive but it optimizes the recovery. The in-situ diametral expansion of tubular using a solid mandrel causes permanent deformation in which the system experiences large frictional forces at mandrel/tubular interface...

... and debris morphology. The scratching direction has a pronounced effect on the friction coefficient and the calculated scratching hardness. By observing the debris morphology and cracks formation, the dependence of ductile to brittle transformation mechanism of silicon machining on the crystal direction...

... Today the torque controlled tightening method for screw assembly is an established process in industries undertaking large scale productions [12]. In this tightening method an instability of friction during the tightening procedure leads to an imprecise stop of the electronic tightening tool...