Small oscillating amplitudes (~0. 1°) and larger (> can both lead to wear, which complicates the evaluation of operating conditions. In this work, a simulation model is used discuss critical amplitudes. The parametric study, includes 125 simulations, shows effect load coefficient friction on frictional work density for ranging from 0.1 2.5°. study concludes that increases with amplitude up cert...

In the context of simulating the frictional contact dynamics of large systems of rigid bodies, this paper reviews a novel method for solving large cone complementarity problems by means of a fixed-point iteration algorithm. The method is an extension of the Gauss-Seidel and Gauss-Jacobi methods with overrelaxation for symmetric convex linear complementarity problems. Convergent under fairly sta...

We consider a mathematical model which describes the frictional unilateral contact between a thermo-piezoelectric body and a rigid electrically conductive foundation. The thermo-piezoelectric constitutive law is assumed to be nonlinear and the contact is modeled with the Signorini condition, the nonlocal Coulomb friction law with slip dependent friction coefficient and the regularized electrica...

A mathematical model which describes an explicit time-dependent quasistatic frictional contact problem between a deformable body and a foundation is introduced and studied, in which the contact is bilateral, the friction is modeled with Tresca’s friction law with the friction bound depending on the total slip, and the behavior of the material is described with a viscoelastic constitutive law wi...

This paper investigates a new mathematical model of static frictional contact for an ideally locking piezoelectric material with electrical and thermal conductivity conditions. A variational formulation the is derived, in form coupled system displacements, electric potential temperature. The existence unique weak solution established its proof based on Tychonoff fixed point theorem multivalued ...

In this paper, we analyze a quasistatic problem modeling frictional contact between viscoplastic body and an obstacle, the so called foundation. The material constitutive relation is assumed to be non-linear. boundary conditions of friction are modeled respectively by \textit{Signorini} generalized Coulomb's non-local law. We derive variational formulation for prove existence its unique weak so...

When dealing with complex mechanical systems that include sliding contact, it is necessary to account for the coupling between the dynamic behavior of the system and the local behavior at the contact. A particular consequence of interaction between system dynamics and contact behavior is the occurring of vibrational instabilities of the mechanical system, induced by the frictional contact. The ...

In the context of simulating the frictional contact dynamics of large systems of rigid bodies, this paper reviews a novel method for solving large cone complementarity problems by means of a fixed-point iteration algorithm. The method is an extension of the Gauss-Seidel and Gauss-Jacobi methods with overrelaxation for symmetric convex linear complementarity problems. Convergent under fairly sta...

Sensitivity analysis (SA) is developed for 2D and 3D multi-body frictional contact problems. The direct differentiation method (DDM) is applied to obtain response sensitivities with respect to arbitrary design parameters (parameter and shape SA). The FE formulation of contact employs smoothing of the master surface, and the augmented Lagrangian technique is used to enforce the contact and frict...

COVID-19 exposed the need to identify newer tools understand perception of information, behavioral conformance instructions and model effects individual motivation decisions on success measures being put in place. We approach this challenge through lens serious games. Serious games are designed instruct inform within confines their magic circle. built a multiplayer game, Point Contact (PoC), in...