This paper proposes an H-type magnetoelectric (ME) composite structure consisting of a fork Fe-Ni magnetostrictive substrate and PZT piezoelectric plates. The fork composite structure has a higher ME voltage coefficient and a higher ME power output relative to other ME composite structures due to its higher quality (Q) factor. The fork composite structure can obtain an output power of 61μW at a...

Fine alignment of main ship power plants mechanisms and shaft lines provides long-term and failure-free performance of propulsion system while fast and high-quality installation of mechanisms and shaft lines decreases common labor intensity. For checking shaft line allowed stress and setting its alignment it is required to perform calculations considering various stages of life cycle. In 2012 J...

A comparative study of speed control performance an induction motor drive system connecting to a load via non-rigid shaft. The nonrigidity the coupling is represented by stiffness and damping coefficients deteriorating regulating operations can be regarded as two-mass system. In paper, ability flatness based backstepping controls in verified through comprehensive hardware-in-the-loop experiment...

Design of high-performance electric propulsion systems requires thorough dynamic analysis of both the electric power and propulsion systems. This paper presents a simple but effective method to model the relevant components in the electric and propulsion plants to facilitate the integration and analysis of the entire system for the purpose of predicting the overall system performance. The objec...

BACKGROUND Intramedullary nails are the primary choice for treating long bone fractures. However, complications following nail surgery including non-union, delayed union, and fracture of the bone or the implant still exist. Reducing nail stiffness while still maintaining sufficient stability seems to be the ideal solution to overcome the abovementioned complications. METHODS In this study, a ...

Decreasing the system weight while maintaining assistance performance can help reduce metabolic penalty in exosuits. Various researchers have proposed a bi-directional cable-driven actuator that provide two degrees of freedom (2-DOF) by using single motor. However, such systems face limitations associated with controllability force. This study proposes novel system, is, dual pulley drive, versa...

The reverse inter-shaft gas film seal is a path used in the intermediate bearing cavity of an aero-engine, which challenging to implement due its special installation and usage conditions. This paper proposes C/C (Carbon/Carbon) composite cylindrical structure carries out performance simulation analysis based on bidirectional fluid–solid coupling technology. results show that with double-layer ...

Integrated chargers, where the traction inverter is used as primary charging interface, have emerged a solution for reducing cost and footprint of electric vehicle (EV) charging. This article proposes bidirectional nonisolated integrated charger topology that also provides benefits to motor lifetime reliability through reduction in bearing currents voltages. achieved by adding an EV drive: <inl...

The driveshaft which transmits the power from engine to wheels in motor vehicles is one of vital elements driveline. Driveshafts have two basic motions depending on road conditions, angular and axial movements. Angular movement provided by universal joints while slip assembly involves a group sliding components. Therefore, an important part drive shaft. Basically, consists parts are connected e...