660 Zero Power Control for Hanging Type Magnetic Suspension System Using Permanent Magnet

2008 ◽  
Vol 2008 (0) ◽  
pp. _660-1_-_660-6_
Author(s):  
Feng SUN ◽  
Koichi OKA
Keyword(s):  
Power Control ◽  
Permanent Magnet ◽  
Suspension System ◽  
Magnetic Suspension ◽  
Magnetic Suspension System

scholarly journals Improvement of Zero Suspension Force Performance Using a Special Magnet for a Magnetic Suspension Device

2011 ◽  
Vol 2-3 ◽  
pp. 1099-1104
Author(s):  
Feng Sun ◽  
Koichi Oka ◽  
Jun Jie Jin
Keyword(s):  
Permanent Magnet ◽  
Suspension System ◽  
Magnetic Suspension ◽  
Attractive Force ◽  
Special Shape ◽  
Comparison Results ◽  
Improvement Method ◽  
Magnetic Suspension System

This paper proposes an improvement method of zero suspension force performance using a special permanent magnet for a magnetic suspension device. The zero suspension force of a permanent magnetic suspension device is indispensable for floating off when the suspended object is stuck on accidentally. Generally, the magnetic suspension system using permanent magnet is difficult to realize the zero suspension force, since the permanent magnet cannot make its attractive force zero. However, the proposed magnetic suspension device has realized the semi-zero power suspension and semi-zero suspension force, which mainly consists of a disk-shape permanent magnet, two “F” shape iron cores, a suspended object, and an actuator. In the magnetic suspension device, since there is magnetic leakage, the suspension force could not be made exact zero. Therefore, in this paper, the zero suspension force will be improved using a special shape permanent magnet. The comparison results indicate that the zero suspension force is decreased about 80 percent.

scholarly journals Zero-power control of double parallel magnetic suspension system with parallel connected coils

2014 ◽  
Vol 80 (813) ◽  
pp. DR0126-DR0126 ◽  
Author(s):  
Yoshinori NARISAWA ◽  
Takeshi MIZUNO ◽  
Masaya TAKASAKI ◽  
Yuji ISHINO
Keyword(s):  
Power Control ◽  
Suspension System ◽  
Magnetic Suspension ◽  
Magnetic Suspension System

Realization of Zero-power Control in a Two-degree-of-freedom Parallel Magnetic Suspension System

2017 ◽  
Vol 2017 (0) ◽  
pp. G1000503
Author(s):  
Yoshinori NARISAWA ◽  
Takeshi MIZUNO ◽  
Masaya TAKASAKI ◽  
Yuji ISHINO ◽  
Masayuki HARA ◽  
...  
Keyword(s):  
Power Control ◽  
Suspension System ◽  
Degree Of Freedom ◽  
Magnetic Suspension ◽  
Magnetic Suspension System ◽  
Two Degree Of Freedom

Proposal of Noncontact Operation Robotic Hand Using Permanent Magnetic Suspension

2013 ◽  
Vol 712-715 ◽  
pp. 2277-2280
Author(s):  
Zhong Xu ◽  
Feng Sun ◽  
Jun Jie Jin ◽  
Koichi Oka
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnets ◽  
Suspension System ◽  
Magnetic Suspension ◽  
Robotic Hand ◽  
Magnetic Suspension System ◽  
Metal Body ◽  
And Performance

This paper proposes a noncontact operation robotic hand using magnetic suspension system. This robotic hand will consist of a noncontact catching part and four movable fingers. The noncontact catching part will be realized by a permanent magnetic suspension system, and will be used to pick up and catch the metal body. There is a permanent magnet on the top of each moveable finger, which operates the suspended metal body without contact. This paper focuses on the feasibility and performance of the noncontact operation using the movable fingers with permanent magnets.

Analysis of Noncontact Conveyance Using Manipulator and Permanent Magnet

1999 ◽  
Author(s):  
Koichi Oka ◽  
Toshiro Higuchi
Keyword(s):  
Permanent Magnet ◽  
Degrees Of Freedom ◽  
Robot Manipulator ◽  
Suspension System ◽  
Magnetic Suspension ◽  
Experimental Result ◽  
Linear Actuator ◽  
Control Schemes ◽  
Magnetic Suspension System ◽  
Contact Control

Abstract It is known that a magnetic suspension system can be made with a permanent magnet and a linear actuator. The linear actuator is used to control the air gap and makes a suspension system stable. By the application of this suspension mechanism, we can develop the robot manipulator with the function of noncontact conveyance using a permanent magnet. The object carrying capability and system stabilization are combined. Noncontact conveyance may be useful for clean or vacuum environments. This paper describes analysis when a manipulator picks, carries, and places an object without mechanical contact. First, the principle of the suspension mechanism and the concept of the noncontact conveyance are explained. An experimental manipulator system which has two degrees of freedom of movement is introduced. This system is theoretically analyzed providing information necessary to suspend the object without contact. Control schemes of the states of picking, carrying, and placing are proposed, and an experimental result of noncontact conveyance is shown. Control parameters of states of picking and placing arc analyzed by numerical simulation, and it is shown that there exist optimal parameters.

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