Analysis on the Finite Element of Electromechanic Coupling of Flexible Gear in Electromagnetic Harmonic Drive

Abstract:

In the harmonic electromagnetic drive motor, the rotating magnetic field may deform gear as well as the shape of interaction electromagnetic fields, thereby resulting in the interaction between electromagnetic field and the structure field. By analyzing the electromagnetic-structural coupling relationship of the system and conducting discretization, this paper established the finite element coupling equilibrium equations of electromagnetic field and structure field and discussed the coupling conditions between two fields as well as the boundary conditions of various fields, thus deducing the expression of the force and displacement transmission on the interface of two physical fields. By finite element simulation of the system, the law of the radial displacement distribution of flexible gear changing with the system parameters, which has provided a basis for further study of electromagnetic harmonic drive motor.

• Periodical: Applied Mechanics and Materials (Volumes 249-250)
• Pages: 771-777
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.249-250.771
• Online since: December 2012
• Authors: Yu Bo Ren, Li Zhong Xu
• Keywords: Boundary Condition, Coupling, Electromagnetic Harmonics, Flexible Gear

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