This contribution presents a generalized approach to friction induced vibrations in systems of moving continua. To this end, Hamilton’s Principle is used to state a weak formulation of the system dynamics without using specific structural models, like beams or plates for instance. The normal contact is enforced by a penalty formulation, which motivates the use of a constitutive contact model ba...

A geometric nonlinear modeling approach for strong rigid–flexible–thermal coupling dynamics of a hub and multiplate system considering frictional contact is proposed. Based on the absolute nodal coordinate formulation (ANCF), an ANCF thin-plate element with thermoelasticity developed, where temperature field expressed Taylor polynomials to yield heat-conduction equations. In contrast traditiona...

Abst-ract constraint. A static grasp occurs, for example, if a cube is grasped in a frictional parallel-jaw gripper, since the frictional forces must be included to verify stability. A quasi-static grasp might correspond to pushing a sofa across the floor-the sofa retains contact with the effector to balance the forces of sliding This paper' describes some preliminary work on dynamic manipulati...

The most general frictional motion in nature involves bimaterial interfaces, when contacting bodies possess different elastic properties. Frictional motion occurs when the contacts composing the interface separating these bodies detach via propagating rupture fronts. Coupling between slip and normal stress variations is unique to bimaterial interfaces. Here we use high speed simultaneous measur...

The generation of wheel–rail-sliding frictional heat is often accompanied by transverse displacement a wheel. To study the thermal problem wheel–rail sliding friction at two-point contact, this paper uses an LM tread wheel and 60 kg·m−1 rail as examples. A thermal–mechanical-coupled finite-element model equal proportion established. direct-coupling method used to analyze thermal–mechanical coup...

The field of tribology defined in Webster’s Dictionary as “a science that deals with the design, friction, wear and lubrication of interacting surfaces in relative motion” has a long and important history in science and technology[1]. The ancient Egyptians, for example, used water to lubricate the path of sleds employed to transport extremely heavy objects. The first scientific studies of frict...

Colloidal shear thickening presents a significant challenge because the macroscopic rheology becomes increasingly controlled by the microscopic details of short ranged particle interactions in the shear thickening regime. Our measurements here of the first normal stress difference over a wide range of particle volume fractions elucidate the relative contributions from hydrodynamic lubrication a...

In this paper, a thermo-mechanical coupling analysis model of the spindle-bearing system based on Hertz’s contact theory and a point contact non-Newtonian thermal elastohydrodynamic lubrication (EHL) theory are developed. In this model, the effect of preload, centrifugal force, the gyroscopic moment, and the lubrication state of the spindle-bearing system are considered. According to the heat t...

Two approaches are commonly used for handling frictional contact within the framework of the Discrete Element Method (DEM). One relies on the Complementarity Method (CM) to enforce a non-penetration condition and the Coulomb dry-friction model at the interface between two bodies in mutual contact. The second approach, called the Penalty Method (PM), invokes an elasticity argument to produce a f...

Abstract This paper is devoted to studying a system of coupled nonlinear first order history-dependent evolution inclusions in the framework triples spaces. The multivalued terms are Clarke subgradient or convex subdifferential form. Using surjectivity result for maps and fixed point argument operator, we prove that has unique solution. We conclude with two examples an evolutionary differential...