New Type of Magnetic Actuator System for Inspection in a Complex Pipe

2013 ◽  
Vol 49 (7) ◽  
pp. 3905-3908 ◽  
Author(s):  
Hiroyuki Yaguchi ◽  
Kazuhiro Sasaki
Keyword(s):  
Magnetic Actuator ◽  
New Type ◽  
Actuator System

scholarly journals A New Type of Rotary Magnetic Actuator System Using Electromagnetic Vibration and Wheel

Actuators ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 51
Author(s):  
Hiroyuki Yaguchi ◽  
Izuru Kimura ◽  
Shun Sakuma
Keyword(s):  
Traffic Volume ◽  
Experimental Results ◽  
Social Infrastructure ◽  
Magnetic Actuator ◽  
Large Structures ◽  
Electromagnetic Vibration ◽  
New Type ◽  
Actuator System ◽  
Inspection And Maintenance ◽  
Pulling Force

In recent years, large structures, such as bridges, which are a type of social infrastructure, have been constructed with increasing traffic volume. For this reason, inspection and maintenance of social infrastructures, such as large bridges and tanks, is important. In the present paper, a magnetic wheel actuator system capable of movement using a new principle of locomotion was proposed and tested. The experimental results indicated a maximum pulling force of 1.6 N. By on-off control of the attractive force of the magnetic wheel, the actuator system was demonstrated to be able to move on a step having a height of 10 mm. Furthermore, the proposed actuator system could freely rotate in horizontal and vertical planes of over angles of 360°.

scholarly journals A New Type of Magnetic Actuator Capable of Wall-Climbing Movement Using Inertia Force

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
H. Yaguchi ◽  
S. Sakuma ◽  
T. Kato
Keyword(s):  
Permanent Magnets ◽  
Resonance Energy ◽  
Experimental Result ◽  
Inertia Force ◽  
Magnetic Actuator ◽  
Function Generator ◽  
Mass Spring Model ◽  
New Type ◽  
The Difference ◽  
Mass Spring

This paper proposes a new type of a magnetic actuator that operates on a resonance energy of a mass-spring model by using an electromagnetic force. The magnetic actuator is moved by the difference in an inertia force during one period of vibration. Experimental result demonstrates that a horizontal speed of the magnetic actuator was 7.4 mm/s with load mass of 50 g. We considered a method of a cable-free movement of the actuator by using two iron rails and four permanent magnets. The magnetic actuator is able to move stably a ceiling plane and a wall plane. This actuator is able to move on the plane of the magnetic materials only a function generator and a power amplifier.

scholarly journals Cableless In-piping Magnetic Actuator for Transportation over Long-range

2015 ◽  
Vol 5 (2) ◽  
pp. 37
Author(s):  
Tomohiro Izumikawa ◽  
Ryuichi Watanabe ◽  
Hiroyuki Yaguchi
Keyword(s):  
Long Range ◽  
Electromagnetic Force ◽  
Permanent Magnets ◽  
Resonance Energy ◽  
Experimental Result ◽  
Magnetic Actuator ◽  
New Type ◽  
Spring System ◽  
Inner Diameter ◽  
Mass Spring

<p class="1Body">This paper proposes a cableless In-piping magnetic actuator capable of locomotion over long range of 1,000 m within a pipe having an inner diameter of 10 mm. The cableless magnetic actuator is moved by using resonance energy of a mass-spring system excited by using an electromagnetic force. The proposed actuator incorporates a new type of an electrical inverter that directly transforms DC from button batteries into AC. The electrical DC-AC inverter incorporates a mass-spring system, two reed switches and two curved permanent magnets that switch under an electromagnetic force. The conventional DC-AC inverter and the newly proposed inverter were compared, and the effect of the inverter on the motive properties of the cableless magnetic actuator was examined. The influence of the consumption current of the battery on the range of the actuator was examined. Experimental result demonstrates that the cableless magnetic actuator was able to move horizontally at 1,588 m, and horizontal speed at 176.5 mm/s when two reed switches were used.</p>

Cableless Magnetic Actuator Capable of High-Speed Movement in Pipe by New Type Propulsion Module

2012 ◽  
Vol 452-453 ◽  
pp. 1252-1256 ◽  
Author(s):  
Tomohiro Izumikawa ◽  
Hiroyuki Yaguchi
Keyword(s):  
High Speed ◽  
Resonance Energy ◽  
Magnetic Actuator ◽  
System A ◽  
New Type ◽  
Spring System ◽  
Inspection And Maintenance ◽  
Mass Spring ◽  
Button Batteries ◽  
Very High

The present paper proposes a novel cableless magnetic actuator that exhibits a very high thrusting force and is capable of high speed locomotion in a thin pipe by using new type propulsion module. The magnetic actuator is moved according to the vibration amplitude and elastic energy of a mass-spring system due to mechanical resonance energy. The proposed actuator contains an electrical inverter that directly transforms DC from button batteries into AC. The electrical DC-AC inverter incorporates a mass-spring system, a reed switch and a curved permanent magnet that switches under an electromagnetic force. Experimental results indicate that the proposed actuator is able to move upward at a speed of 51 mm/s by the power provided by 8 button batteries when pulling a 10 g load mass. This cableless magnetic actuator has several possible applications, including small pipe inspection and maintenance.

Validation of a coupled multibody and TEHL simulation by a piston/cylinder component test rig

2022 ◽  
pp. 135065012110732
Author(s):  
Markus Kroneis ◽  
René Scheerer ◽  
Lars Bobach ◽  
Dirk Bartel
Keyword(s):  
Three Dimensional ◽  
Original System ◽  
Test Rig ◽  
Control Chamber ◽  
Piston Cylinder ◽  
Component Test ◽  
Simulation Based ◽  
Measurement Results ◽  
New Type ◽  
Actuator System

A tribological highly stressed contact in the actuating system of axial piston machines is located between the control piston and the control chamber. This paper presents a new type of component test rig for measuring the frictional force and the gap heights between piston and cylinder. For this purpose, the original system is reduced to the actuator system, whereby the real kinematics and the loading forces are maintained. The axial movement of the control piston and the pressure in the control chamber can be configured individually. The measurement results of different parameter variations are compared with the results of the simulation. The simulation based on a coupled multibody and TEHL simulation with a transient, three-dimensional, thermal elastohydrodynamic contact calculation.

Toward a Maneuverable Miniature Robotic Fish Equipped With a Novel Magnetic Actuator System

2020 ◽  
Vol 50 (7) ◽  
pp. 2327-2337 ◽  
Author(s):  
Xingyu Chen ◽  
Junzhi Yu ◽  
Zhengxing Wu ◽  
Yan Meng ◽  
Shihan Kong
Keyword(s):  
Robotic Fish ◽  
Magnetic Actuator ◽  
Actuator System
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