The system under study is a web handling machine composed of an unwinder, several traction motors, several idlers with or without load cells and a winder. All flexible materials such as textiles, papers, polymers or metals are handled on rollers during their processing. Maintaining strip tension in the entire processing line while increasing web speed is a key factor for achieving good final pr...

A mixed formulation for a Tresca frictional contact problem in linear elasticity is considered in the context of boundary integral equations, which is later extended to Coulomb friction . The discrete Lagrange multiplier, an approximation of the surface traction on the contact boundary part, is a linear combination of biorthogonal basis functions. In case of curved elements, these are the solut...

Abstract Adhesion and friction between solids in ambient air control applications such as precision positioning traction of tires. For all practical surfaces, the interfaces are rough. Contact occurs at nano- or micro-contact junctions contact area these changes upon normal shear loading during sliding. The multiscale roughness, material parameters interfacial bonding, mechanical properties, sl...

Capsule endoscopy is an emerging field in medical technology. Despite very promising innovations, some critical issues are yet to be addressed, such as the management and possible exploitation of the friction in the gastrointestinal environment in order to control capsule locomotion more actively. This paper presents the fabrication and testing of bio-inspired polymeric micro-patterns, which ar...

A numerical boundary integral method, relating slip and traction on a plane in an elastic medium by convolution with a discretized Green function, can be linked to a slip-dependent friction law on the fault plane. Such a method is developed here in two-dimensional plane-strain geometry. The method is more efficient for a planar source than a finite difference method, and it does not suffer from...

Traction control is one of the most important functions in vehicle drivetrain systems. When a driven on low-friction road surface, loss traction force can cause wheels to spin. This reduces acceleration performance and even driver lose vehicle. The high bandwidth electric machine vehicles gives more possibilities regulate driving torque prevent wheel An acceleration-based slip designed investig...