円筒状リニアモータの推力解析

概要

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The tubular linear motor is a simple electromechanical device that provides long stroke at a uniform force. It can provide definite cost, weight, size or performance advantages in applications that previously required hydraulic, pneumatic or mechanical actuators. In this paper, the configuration of the tubualr linear motor is analyzed in terms of the electromagnetic field theory, and the standstill force equation is derived using the Maxwell's fundamental equation. The expression for the standstill force produced by a peak surface current density Js, is given by F=1/2(rho)(gamma)Js2/Vs(1+1/G2) wl where ,(rho)(gamma) is the surface resistivity, Vs is the synchronous speed of linor, G is a goodness factor, l is the length of stator winding, w is the circumferential length of primary iron core. The above expression for the standstill force is checked by experiments, and it obtains nearly satisfactory coincidence. The influence exerted on the standstill force by parameters is considered, and the reasons of experimental errors are clarified. Fundamental design data of the tubular linear motors are obtained by this paper.
信州大学工学部の論文
1971-07-25