Abstract. The paper considers an electromechanical surfacing technique of parts’ work surfaces. It was found out that depending on strain temperature, rate and degree there were special type structures formed a surface layer with phase change (a bright layer), i.e. hot deformed structure without recrystallization cold structure. Depending the original hardening conditions, during parts thicknes...

Impact of Active Distribution Network Cell (ADNC) Study on Power System Oscillation requires modelling of power system components. The system covers the well knows Two AreasSystem benchmark which studies low frequency electromechanical oscillations in large interconnected power system. This study examined the effect of passive cell on Active Distributive Network Cell (ADNC). The method adopted ...

We present a learn by example system being developed in the University of Aveiro. This system uses the software platform, PeA, of the project PmatE, which provides a way to store and run our example questions (more precisely question generator models). Several PeA models for the course “Cálculo III” (calculus with several variables), have been produced recently. The contents of the course is di...

A cognitive intelligent approach to the control of an electromechanical positioning actuator using Tendentious Vague Sets (TSets) is presented. The electromechanical positioning actuator prototype discussed is essentially a position control system whose constitutive elements are a PC based control unit, a Direct Torque Control (DTC) inverter and an induction motor. A generalisation of the fuzzy...

The synthesis of controller algorithm for reversible electromechanical scanner of the telescope scanning axis is discussed. Digital control system is built without intermediate stage of synthesis of analog control law. The modified procedure for the synthesis of discrete optimal control law is introduced. Elasticity influence on static and dynamic characteristics of electromechanical scanner of...

This article deals with the mechanical analysis of a fixed-fixed nano-beam based on nonlocal elasticity theory. The nano-beam is sandwiched with two piezoelectric layers through it’s upper and lower sides. The electromechanical coupled equations governing the problem are derived based nonlocal theory considering to Euler-Bernoulli beam assumptions and based on the nonlocal piezoelectricity acco...