Modelling and Spherical Air Bearing Based Levitation Design of a Novel M-DOF Actuator

作者：Li Zheng^*; Guo Zhihu

来源：Przeglad Elektrotechniczny, 2012, 88(11A).

• Air bearing
• levitation
• m-DOF
• actuator

Supporting and levitation control are important for actuators or motors with complicated structures. Based on the presented configuration design, the simplified torque calculation model and non-linear system dynamic model have been proposed, and spherical air bearing levitation mechanism is developed for alleviating the friction and resistance to improve the dynamic performance of this m-DOF actuator. The fluid field model is built in computational fluid dynamics software. Different structure parameters and conditions are computed and compared with the pressure distribution characteristics. Experiment results show that the actuator can effectively implement 3-DOF motion with the designed levitation modes, and that the proposed approach can be applied to m-DOF actuators of the same kind effectively.

• 出版日期2012
• 单位河北大学