Modelling and parametric design of a pneumatic soft stepper motor
Modelling and parametric design of a pneumatic soft stepper motor
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气动软步进电机的建模与参数化设计
DOI:
10.1016/j.ijmecsci.2019.105019
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发表时间:
2019-10
影响因子:
7.3
通讯作者:
Yanqiong Fei
中科院分区:
文献类型:
--
作者:
Jiangbei Wang;Yanqiong Fei
This paper presents model-based design of a Pneumatic Soft Stepper Motor (PSSM). This motor is inspired by the conventional electromagnetic stepper motors and the Wankel rotary engines, leveraging the principles of pole difference and pressure eccentricity. It is actuated by sequential inflation and deflation of the soft chambers on inner circumference of the stator to apply eccentric pressure on teeth of the rotor, and thus to produce the rotation torque. From equilibrium of the drive and load torques, the Switching Phase Space (SPS) model is constructed to describe rotation behaviors of the PSSM. Based on the model, the parameter design is discussed when considering the torque and speed characteristics of the motor in different drive modes (wave-drive, half-step and full-step drives) and with different inflating pressures. Furthermore, the model-based design rules are verified by FEM simulations.
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