Masahiko Mizui

Kyushu International University

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Keisuke Kamijo

Kyushu Kyoritsu University

Koichi KIKKAWA

Kyushu Institute of Technology

Yoshio Mizugaki

Kyushu Institute of Technology

Masafumi HORIGUCHI

Kyushu Kyoritsu University

Tasuku Yoshitomi

Kyushu Kyoritsu University

Ikuo Yamamoto

Nagoya University

Masaaki IZUMI

The University of Kitakyushu

Taishi Oka

Osaka Metropolitan University

Kouhei YAMADA

The University of Kitakyushu

Kotaro Miyamoto

Tokyo Institute of Technology

Cooperative Institutions

Kyushu Kyoritsu University

The University of Kitakyushu

Kyushu Institute of Technology

Nagasaki University

Osaka University

Waseda University

Kyushu University

The University of Tokyo

University of Hyogo

Qingdao University of Technology

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Launch of Robotic Fish to the Space: Development of Autonomous Cleaning Robot in the International Space Station

IFAC Proceedings Volumes (2013)

Masahiko Mizui Ikuo Yamamoto Taishi Oka

International Space Station

Creatures

10.3182/20130918-4-jp-3022.00037

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Citations (1)

Effects of Propeller-balance on Sensors in Small–scale Unmanned Aerial Vehicle

IOSR Journal of Engineering (2012)

Masahiko Mizui

The authors are developing small UAV and studying flight stabilization control.To understand the characteristics of the aircraft is important for the control.The Vibration from rotor part has an influence on sensors which measures flight parameters.One of the reasons is the unbalance of the weight on the propeller blade.In this paper, trade edition and nylon propellers are selected for multi-rotor UAV.The static balance of a propeller can be inspected by a tool "propeller balancer."It is important to make adjustment for propellers balance at wings weight.In this paper, effect by propeller balance is verified.(current of Motor, characteristic of vibration) Centrifugal force which arises from unbalance of weight is proportional to the square of number of rotations.It was found that Resonant with Natural Frequency of arm part and vibration of rotor part was a problem to the flight-stability of UAV.

10.9790/3021-02862327

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Citations (7)

3Dプリンティング技術によるSOFC試作法の提案

The Proceedings of Mechanical Engineering Congress Japan (2023)

Kouhei YAMADA Yusuke ONOMITI Takeshi Miyaguni Masaaki IZUMI Masahiko Mizui

In this study, basic experiments were conducted to apply a light-curing 3D printer that uses resin cured by a certain wavelength of light to the fabrication of solid oxide fuel cells (SOFC). When using this method, the volume fraction of ceramic powder mixed in the resin has a great influence on the feasibility of the molded object. The upper limit of the volume fraction to obtain a compact of the target size by 3D printer is 22%, and the lower limit of the volume fraction to obtain a compact of the target size by 3D printer is 22%. The lower limit of the volume fraction that can maintain the shape after firing is determined to be 20%. However, the fired compact is very brittle when the volume fraction is less than 20%, so further improvement is needed to increase the volume fraction.

10.1299/jsmemecj.2023.j052p-01

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Development of CAI for the Control Engineering Education : The trial manufacture of desktop simple experimental equipment for rotation angle control system

The Proceedings of Conference of Kyushu Branch (2003)

Kazuyuki ESUMI Keisuke Kamijo Masahiko Mizui

10.1299/jsmekyushu.2003.56.365

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Resonance Analysis of the UAV Rotor-arm part

IOSR Journal of Engineering (2012)

Masahiko Mizui

The study of Aerial-photography by Unmanned Aerial Vehicle(UAV), becomes more and more important especially for disaster countermeasures.The Vibration from rotor part has an influence on sensors which measures flight parameters.It was found that resonant with natural frequency of arm part and vibration of rotor part gave rise to problems to the flight-stability of UAV.The sensor values from resonance will increase the amount of aircraft control.It is considered to cause overturn and hunting motion of the aircraft.Based on the thrust generated from the propeller, was determined natural frequency of the rotor-arm part by Rayleigh method.Design to understand the natural frequency of aircraft parts, it is important to avoid the resonance.Therefore, the risk of resonance verified with the frequency of rotor rotation speed of propeller.

10.9790/3021-02862832

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Study of High-efficiency Polishing System supported by Ultrasonic Vibration

The Proceedings of Conference of Kyushu Branch (2004)

Tomohisa HIGAE Tomoya Ueda Kohdai NAGAMATSU Masafumi HORIGUCHI Keisuke Kamijo

10.1299/jsmekyushu.2004.57.359

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819 Study of High-efficiency Polishing System assisted by Ultrasonic Vibration : Influence of main conditions on finishing characteristics

The Proceedings of Conference of Kyushu Branch (2005)

Masafumi HORIGUCHI Keisuke Kamijo Masahiko Mizui

10.1299/jsmekyushu.2005.58.315

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Study on Fabrication of Anodes for SOFCs with 3D Printing Technology

ECS Transactions (2020)

Kotaro Miyamoto H. Koga Masaaki IZUMI Masahiko Mizui Hiroyasu Nishiguchi

The porous structure of anodes in SOFCs is the key factor to improve its performance and the manufacturing method to control its design needs to be established. Additive manufacturing, so-called 3D printing technology can be a prospective method for the fabrication of electrodes of SOFCs. In this experiment, stereolithography, which is a form of 3D printing technology using UV-light with approximately 365nm wavelength and photo-curable resin, is applied. The UV-light that goes through pinholes enables the production of multiple cylindrical objects at once. As a result, the objects and the empty spaces between them make the porous structure. Moreover, by changing the size and the number of holes and distance between them, the fabrication of an anode with the desired microstructure can be expected.

Stereolithography

10.1149/09601.0219ecst

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Research of the camera position calculation by processing of a robot camera picture

The Proceedings of Conference of Kyushu Branch (2003)

Masahiro Fujiwara Tasuku Yoshitomi Masahiko Mizui

In this research, as the compensation method of the robot positioning error, reference markers are photographed with the CCD camera attached at the tip of robot arm, and it aims at computing the correction value of a robot parameter based on a robot's present position computed using the analysis value of the picture. This paper reports the basic experiments that photographed the reference markers of position known with the CCD camera, and calculation of the camera position that applies the principle of photo survey.

Position (finance)

Camera matrix

Video camera

Professional video camera

10.1299/jsmekyushu.2003.56.287

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Development of the Web base CAI using Multimedia

The Proceedings of Conference of Kyushu Branch (2003)

Masahiko Mizui Keisuke Kamijo

Base (topology)

10.1299/jsmekyushu.2003.56.363

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