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| Development of nutation motors (improvement of pneumatic nutation motor by optimizing diaphragm design) Shinji ODA/Koichi SUZUMORI/Kazuo UZUKA/Isao ENOMOTO
The Journal of Mechanical Science and Technology, vol. 24, no. 1, pp.25-28, 2010
Abstract : This article describes the improvement of a pneumatic nutation motor. Pneumatic nutation motors that are driven by diaphragm are
expected to have bigger torque. In this report, refined design of the diaphragm is discussed. First, several different shapes of diaphragms
are proposed and analyzed with nonlinear FEM. Second, a “bellows type” diaphragm is fabricated and built in the motor. Holding fixture
for the diaphragm is also refined to improve its performance. Finally, torques of the new model and conventional model are compared,
resulting in that the new model generates the torque 20 percent higher than that of the conventional model at any air pressure.
Keyword :
Actuator; Pneumatic actuator; Stepping motor; Bevel gear; Diaphragm
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