M. Yousfi

TL;DR: In this article, a running-in wear model was developed to predict topographical surface changes without considering the running in conditions, and a numerical extension of the developed model was applied to solve the Reynolds equation by taking into account the real surface topographies of the engine bore.

TL;DR: In this paper, a numerical model is developed to predict friction within the cylinder ring-pack system in mixed lubrication regime, taking into account the mutual effect of superficial plateau roughness amplitude and honing angle.

TL;DR: In this article, the influence of plateauness and smoothness on surface wear and friction performance during running-in of a reciprocating ring-liner has been studied, and the results show that the superficial surface roughness generated by helical slide honing has a very low contribution into friction.

TL;DR: In this article, a new methodology coupling the multiscale decomposition of the surface and the prediction of the friction coefficient by numerical simulation was developed to understand the influence of the scale of roughness in the friction coefficients.

TL;DR: A discussion on the relevance of the different parameters and characterization methods for plateau-honed surfaces by considering the control loop manufacturing-characterization-function is presented in this article. But, the authors do not consider the effect of the most plateau honing process variables (the abrasive grit size and abrasive indentation velocity in finish-honing and the plateauhoning stage duration and pressure) on cylinder liner surface textures and hydrodynamic friction of the ring-pack system.