The allocation of design tolerances between the components of a mechanical assembly and manufacturing tolerances can significantly affect the functionality of products and related production costs. This paper introduces Imperialist Competitive Algorithm (ICA) approach to solve the machining tolerance allocation of an overrunning clutch assembly.  The objective is to obtain optimum tolerances of...

Original scientific paper By introducing a novel permanent magnetic bi-stable electromagnetic clutch unit (PMBECU) in the driveline of directly-driven electric vehicle, a flexible connection between motor and hub is realized with characteristic of separated starting process of drive motor and wheel load. Firstly, the working principle and power supply scheme for the PMBECU is discussed. Then th...

Many cell movements occur via polymerization of the actin cytoskeleton beneath the plasma membrane at the front of the cell, forming a protrusion called a lamellipodium, while myosin contraction squeezes forward the back of the cell. In what is known as the "molecular clutch" description of cell motility, forward movement results from the engagement of the acto-myosin motor with cell-matrix adh...

Automated Manual Transmissions (AMTs) systems are generally constituted by a dry or wet clutch assembly and a multi-speed gearbox, both equipped with electro-mechanical or electro-hydraulic actuators, which are driven by a control unit, the transmission control unit (TCU). In this transmission type the quality of the vehicle propulsion as perceived by the driver is largely dependent on the qual...

Abstract The role of the reliability military systems in success mission is one most important elements that logistics must take into account and should constantly return to for its improvement growth. Increased ensures long availability low maintenance costs. In case vehicles, intensively demanded operation, there are several components permanently subject wear failure. Between these, clutch a...

Abstract The clutch is an important component of the vehicle driveline system. One its major functions to attenuate or eliminate torsional vibration and noise system caused by engine. Based on experiments damping under different conditions, structure functional principle a clutch-driven disc assembly for wide-angle, large-hysteresis, multistage damper investigated in this study using innovative...

In most livebearing fish, the gravid spot is an excellent marker to identify brooding females, however its use to predict progress of embryonic development, brood size, timing of parturition and overall reproductive potential of populations remain unexplored. Therefore, to understand these relationships, this study quantified visual attributes (intensity and size) of the gravid spot in relation...