CONSTRUCTIVE SOLUTIONS TO OPTIMIZE THE MOVEMENT COLLECTOR FORM IN CASE OF THE ELECTROSTATIC MOTOR

In the construction of the electrostatic motor, that we developed, the rolling spherical bodies caused the rotation at the level of the rotor. In time of the experimental resources we found an interesting movement for the metal ball which causes the rotation movement of the rotor. This movement shows at the first time the interaction between the rolling body and the rotor collector arm, this interaction we try to optimize with an insulator material for the collector arm/arms. 1. THEORETICAL AND EXPERIMENTAL ELEMENTS In the function of electrostatic motor, that we proposed and developed, the rolling bodies are caused the rotation of the rotor in directly physical contacts. For this reason we tray to optimize the complex movement of one rolling body versus the movement of the rolling body which is strait-laced by the arms of collector, movement collector. The rolling of the metal ball is caused by the concurrence of many forces and interactions, among which there are the effect of the Coulomb force between the sphere and the metallic ring of the spatial condenser’s fitting, the effect of the centrifugal force of the rolling body, the instantaneous distribution of duties on the surface of the rolling body reported to the condenser’s fittings, and not in the last, the rolling of this body on the surface of the superior dielectric. [1] The rolling movement of the body involves the precession of the instantaneous axis of the body’s rotation – implying a continuous variation of the sphere rolling circle, a variation of both this circle’s plane on the rolling area, and of the length of this circle. In consequences generate at their turn a “sinusoidal”, winding movement of the mass center trajectory to the inner perimeter of the superior fitting’s ring of the spatial condenser,[2]. Experimentally, the rolling movement of the body involves the precession of the instantaneous axis of the body’s rotation – implying a continuous variation of the sphere’s rolling circle, a variation of both this circle’s plane on the rolling area, and of the length of this circle. In theoretical studies we are modeling this movement with the parametrical equation, [4]. About this complex movement doesn’t exist currently an explication, only the Coulomb force is evidently but who is responsible to the rotation of the metal ball, maybe Lorenz force or Maxwell-Faraday’s law can cause the rotation of the spherical body, (metal ball, in our case). Summary the experimental stand contains: the spatial condenser formed of: the square stand and the inferior dielectric on which the fitting of the condenser is laid, superior dielectric 4, which represents the rolling area of the spherical body 5, in the end of the same time of the stator at the electrostatic engine. Placed on the superior dielectric inside the metallic ring 6, it can found the rolling body that, when this condenser is fed from a source of constant high tension, starts the rolling movement, inside the superior fitting. In this type of construction the collectors 16, are makes from steel the constructions elements, 1 to 4 and 6 form the spatial condenser in witch is replaces the whole rotor 13, with horizontally two arms 9 and another vertically two arms 10, like as see in top figure. ANNALS of the ORADEA UNIVERSITY. Fascicle of Management and Technological Engineering, Volume XI (XXI), 2012, NR1