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Research Group Designs a Second Generation Nearly Free-Floating Motor


Research Group Designs a Second Generation Nearly Free-Floating Motor


Alhambra, California - September 9, 2015 - Four students and their Research Mentor, Dr. Sanza Kazadi,  from the Jisan Research Institute (JRI) in Alhambra, California participated in a research project that developed a novel levitating motor in which they designed, constructed, and tested a new motor design. They then wrote and submitted their results in a scientific paper, submitted it to the 10th Annual IEEE Conference on Industrial Electronics and Applications, and were invited to New Zealand to present their results.



                                         Alex Li presents his group's work in New Zealand.


The students who participated in this research project are Alexander Li (17) from the Chadwick School in Rancho Palos Verdes; Ashley An (16) from Crescenta Valley High School in La Crescenta; and Briana Shen (17) and Andrew Pyun (17), both from Arcadia High School in Arcadia.  All students worked on the scientific paper and research involved; Li delivered the presentation in New Zealand.


The research centered on levitating motors in which the main rotor is nearly free-floating––free of ball bearings or other restraints that add friction and wear to the device. Such a motor, in principle, could run for a long time with very little noise, wear and tear, with extremely high efficiencies. Theoretically, a motor of this type will generate significant savings in energy, maintenance, and replacement costs.  


The research group designed a second generation motor around a patented floating axle technology developed at JRI in 2007. The motor’s main rotor is levitated and stabilized by a specific arrangement of permanent magnets, resulting in the rotor having only one contact point and thus minimizing friction.


Once the basic design was constructed, the team carried out careful measurements of the motor's torque, speed, and other characteristics. This involved measuring the behavior of the control electronics, by developing and conducting experiments that measured the torque of the motor under varied loads. After an analysis of the results was performed, the group created an acceleration-only control electronics which accelerates the motor until it is no longer possible for it to accelerate any more for a number of potential reasons. Then, the final motor was produced using a combination of machining and 3D printing.


A summary of research including design characteristics and testing results were written up in a paper entitled A levitating motor based on passive magnetic levitation supports. The paper was accepted by the IEEE International Conference held in June of 2015.  Li and his Research Mentor traveled to Auckland, New Zealand to deliver the presentation.


After completing their first research cycle, several members of the group have continued their efforts. Shen and An have completed work on a second paper extending the results to a modified version of the same motor currently out for review. Li is now participating in a research project that envisions developing a tool researchers can use to design swarms, and An is involved in a project that promises to enable distillation using a process that absorbs the heat needed to do the distillation from the air.



Dr. Sanza T. Kazadi
308 S Palm Ave
Alhambra, CA 91803
Ph:  (626) 458-0000

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