in this paper deflection and free vibration of sandwich panel is studied. the core of sandwich panels is made of hexagonal honeycomb and faces are made of two different materials of carbon fiber reinforced plastic and k-aryl/epoxy covering. the governing equations are deduced from the first order sheer deformation theory (fsdt) and they are solved using generalized differential quadrature metho...

In this paper, a comparative study of the main kinds of electromechanical converter used for total artificial heart is presented. Key-words: artificial heart, electromechanical converter, circulatory support

History of Relay The static relay is the next generation relay after electromechanical type.The Solid Static relays was first introduced in 1960’s. The term ‘static’ implies that the relay has no moving mechanical parts in it. Compared to the Electromechanical Relay, the Solid Static relay has longer life-span, decreased noise when operates and faster respond speed. However, it is not as robust...

This paper deals with steady-state analysis of the magnetic field by using Finite Element Method (FEM) in salient poles synchronous motor with damper (SPSMD). The knowledge of electromechanical characteristics is very important in performance analysis of electrical machines, in general. In this paper it presents a methodology for numerical calculation of electromechanical quantities, starting w...

Development of soft electromechanical materials is critical for several tantalizing applications such as soft robots and stretchable electronics, among others. Soft nonpiezoelectric materials can be coaxed to behave like piezoelectrics by merely embedding charges and dipoles in their interior and assuring some elastic heterogeneity. Such so-called electret materials have been experimentally sho...

Overhead transmission lines are influenced by different factors which are mostly electrical and mechanical. These factors can cause problems for lines, distortions in network and outage of line. In designing transmission lines mechanical properties are evaluated after selecting a suitable conductor and clearance with regard to electrical properties. In lines designing, an important mechanical p...

The damping performance evaluation for electro-mechanical oscillations in power systems is crucial the stable operation of modern systems. In this paper, connection between two commonly-used methods, i.e., torque analysis (DTA) and energy flow (EFA), are systematically examined revealed better understanding oscillatory mechanism. First, a concept aggregated coefficient proposed derived based on...