Subscale rotor spin testing for compulsator component development

The maturation of pulsed rotating machines has evolved to the stage where a greater degree of basic research is required to further increase the energ y and power density of advanced compulsators. The University of Texas at Au stin Center for Electromechanics is studying the combined mechanical and el ectrical aspects of very high speed compulsator rotor designs for the next generation of compact pulsed rotating machines. This paper describes the design, construction, and testing of three scaled composite rotors. Performance specifications included hoop stresses of 1.7 GPa (250 ksi) in the outer banding and strain excursions of 0.4% in the fie ld coil region. Results from the three studies are reviewed in detail, Tech niques developed at the Center for Electromechanics for determining composi te rotor performance are also discussed.