Limited Angle Torque Motors Having High Torque Density, Used in Accurate Drive Systems

• Main Authors: R. Obreja, I. R. Edu
• Format: Article
• Language: English
• Published: CTU Central Library 2011-01-01
• Series: Acta Polytechnica
• Subjects: limited angle torque motor; finite element method; high performance; pancake; direct drive
• Online Access: https://ojs.cvut.cz/ojs/index.php/ap/article/view/1446

A torque motor is a special electric motor that is able to develop the highest possible torque in a certain volume. A torque motor usually has a pancake configuration, and is directly jointed to a drive system (without a gear box). A limited angle torque motor is a torque motor that has no rotary electromagnetic field — in certain papers it is referred to as a linear electromagnet. The main intention of the authors for this paper is to present a means for analyzing and designing a limited angle torque motor only through the finite element method. Users nowadays require very high-performance limited angle torque motors with high density torque. It is therefore necessary to develop the highest possible torque in a relatively small volume. A way to design such motors is by using numerical methods based on the finite element method.