Comparative Analysis and Design Criteria of PM Tubular Actuators

The adoption of an adequate methodology of analysis of permanent magnet (PM) tubular actuators allows one to formulate effectively the problem of improving their performance. A proper dimensioning strategy is then envisaged to increase the force density yielded by a tubular linear PM actuator. The strategy must be calibrated on the geometrical and mechanical constraints. This paper takes into consideration the most frequently adopted configurations of tubular actuators, presents a novel model and suggests two one-step design procedures.