Design and analysis of a field modulated magnetic screw for artificial heart
Zhijian Ling,
Jinghua Ji,
Fangqun Wang,
Fangfang Bian
Affiliations
Zhijian Ling
School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China and Jiangsu Key Laboratory of Drive and Intelligent Control for Electric Vehicle, Zhenjiang 212013, China
Jinghua Ji
School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China and Jiangsu Key Laboratory of Drive and Intelligent Control for Electric Vehicle, Zhenjiang 212013, China
Fangqun Wang
School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China and Jiangsu Key Laboratory of Drive and Intelligent Control for Electric Vehicle, Zhenjiang 212013, China
Fangfang Bian
School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China and Jiangsu Key Laboratory of Drive and Intelligent Control for Electric Vehicle, Zhenjiang 212013, China
This paper proposes a new electromechanical energy conversion system, called Field Modulated Magnetic Screw (FMMS) as a high force density linear actuator for artificial heart. This device is based on the concept of magnetic screw and linear magnetic gear. The proposed FMMS consists of three parts with the outer and inner carrying the radially magnetized helically permanent-magnet (PM), and the intermediate having a set of helically ferromagnetic pole pieces, which modulate the magnetic fields produced by the PMs. The configuration of the newly designed FMMS is presented and its electromagnetic performances are analyzed by using the finite-element analysis, verifying the advantages of the proposed structure.
