The six-degrees-of-freedom GoughStewart platform manipulator is a promising alternate architecture for the mechanical design of a six component force-torque sensor. Two basic configurations of the Gough-Stewart platforms are used for the design of six component force-torque sensors. In an isotropic configuration, equal sensitivity for all the six components of the force and torque being measure...

Adhesion level for the proper running of rail wheelset on track has remained a significant problem for researchers in detecting slippage to avoid accidents. In this paper, the slippage of rail wheels has been observed applying forward and lateral motions to slip velocity and torsion motion. The longitudinal and lateral forces behavior is watched with respect to traction force to note correlatio...

When grasping and manipulating objects, the central controller utilizes the mechanical advantage of the normal forces of the fingers for torque production. Whether the same is valid for tangential forces is unknown. The main purpose of this study was to determine the patterns of finger tangential forces and the use of mechanical advantage as a control mechanism when dealing with objects of nonu...

Modular winding structure has been employed in the Permanent Magnet Synchronous Motors (PMSMs) to increase reliability and reduce torque ripple. Nevertheless, of motor system depends on lifetime power semiconductor devices. Since thermal cycles, which can generate mechanical stress between different material layers devices, are key factors influence this paper, an Active Thermal Control (ATC) f...

A mechanical study investigating the use of two different methods (grub and bolt screws) to secure external fixation half pins to circular frames. A four part experiment: (1) Grub and bolt screws were used to secure half pins in Taylor Spatial frames. Loosening torques were measured using a calibrated torque wrench. (2) Using universal testing machine (UTM), axial loading was applied to establi...

This paper presents a novel method for estimating the load torque of a sensorless indirect stator flux oriented controlled (ISFOC) induction motor drive based on the model reference adaptive system (MRAS) scheme. As a matter of fact, this method is meant to inter-connect a speed estimator with the load torque observer. For this purpose, a MRAS has been applied to estimate the rotor speed with t...

In this paper, the mechanical design process of a star spherical parallel robot that we call Zippy Wrist is illustrated. The Zippy Wrist is a 3-RRP spherical parallel manipulator and can perform many industrial applications such as; orienting a tool or a workpiece in machine tools, solar panels, space antennas and telescopic mechanisms, flight simulator mechanism and camera devices. The forward...