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Technical Committee on Electromechanical Devices (EMD)
Chair: Hideaki Sone (Tohoku Univ.)
Vice Chair: Makoto Hasegawa (Chitose Inst. of Science and Tech.), Ryo Nagase (NTT)
Secretary: Kiyoshi Yoshida (Nippon Inst. of Tech.), Toru Kawai (JAE)
Assistant: Junya Sekikawa (Shizuoka Univ.)

DATE:
Wed, Nov 14, 2007 09:20 - 16:40
Thu, Nov 15, 2007 09:10 - 16:20

PLACE:
ACT City Hamamatsu, - Seminar and Exchange Center(3-9-1 Chuo, Naka-ku Hamamatsu-shi, 430-0929 Japan. http://www.actcity.jp/. Prof. Takayoshi Kubono. 053-478-1080)

TOPICS:
International Session on Electro-Mechanical Devices 2007

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Wed, Nov 14 AM Opening remarks (09:20 - 09:30)
Chair: Hideaki Sone
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----- Opening remarks ( 10 min. ) -----

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Wed, Nov 14 AM <<Session 1>> --Fretting-- (09:30 - 10:30)
Chair: Hideaki Sone
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(1) 09:30 - 09:50
Frequency Influencing of Fretting Corrosion of Tin Plated Contacts
Yasushi Saitoh, Naoyuki Sato, Terutaka Tamai, Kazuo Iida (Mie Univ.), Tetsuya Ito, Shigeru Sawada, Yasuhiro Hattori (AutoNetworks Technologies)

(2) 09:50 - 10:10
Microscopic Observation of Fretting Corrosion of Tin Plated Contacts
Hirosaka Ikeda, Tetsuya Ito, Shigeru Sawada, Yasuhiro Hattori (AutoNetworks Technologies), Yasushi Saitoh, Terutaka Tamai, Kazuo Iida (Mie Univ.)

(3) 10:10 - 10:30
Micro-structural Study of Fretting Contact caused by the difference of the tin plating thickness
Tetsuya Ito, Shigeru Sawada, Yasuhiro Hattori (AutoNetworks Technologies), Yasushi Saitoh, Terutaka Tamai, Kazuo Iida (Mie Univ.)

----- Break ( 15 min. ) -----

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Wed, Nov 14 AM <<Session 2>> --Sliding Contact-- (10:45 - 11:45)
Chair: Noboru Wakatsuki
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(4) 10:45 - 11:05
The Relationship between Contact Resistance and Frictional Coefficient under High Current Sliding Contact
Takahiro Ueno, Kenichi Kadono, Shinji Yamaguchi, Noboru Morita (Nippon Inst. of Tech.), Akio Tanaka (Oyama Nat'l College of Tech.)

(5) 11:05 - 11:25
Influence of Surface Finish Processing on Contact Voltage Drop of Sliding Contact
Kenichi Kadono, Takahiro Ueno, Shinji Yamaguchi, Noboru Morita (Nippon Inst. of Tech.), Akio Tanaka (Oyama Nat'l College of Tech.)

(6) 11:25 - 11:45
Brush Sliding Contact Voltage Deviation Analysis based on the Evaluation of Displacement Excited Vibration caused by the Collector Ring Profile Distortion
-- for Turbine Generators & Traction Motors --
Makoto Takanezawa, Hiroyuki Yanagisawa, Takahiro Ueno, Noboru Morita (Nippon Inst. of Tech.)

----- Lunch Break ( 75 min. ) -----

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Wed, Nov 14 PM <<Session 3>> --Arc Interruption-- (13:00 - 14:40)
Chair: Terutaka Tamai
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(7) 13:00 - 13:20
Measurement of Current Noise up to GHz from Slowly Breaking AgSnO2 Contact with External Magnetic Field
Hikaru Miura, Yoshiki Kayano, Kazuaki Miyanaga, Hiroshi Inoue (Akita Univ.)

(8) 13:20 - 13:40
Motion of Break Arcs Driven by External Magnetic Field in a DC42V Resistive Circuit
Junya Sekikawa, Takayoshi Kubono (Shizuoka Univ.)

(9) 13:40 - 14:00
Breaking Contact Phenomena of Time-coordinated Non-arcing Relay
Noboru Wakatsuki, Hiroshi Honma, Kazumasa Otomo (Ishinomaki Senshu Univ.)

(10) 14:00 - 14:20
Influence of source voltage on gaseous phase arc transition in Ag alloy contacts
-- Relation between damage in contact surface and voltage --
Kiyoshi Yoshida (Nippon Inst. of Tech.)

(11) 14:20 - 14:40
An experimental study of influences of contact opening speeds on arcing behaviors of silver contacts
Makoto Hasegawa (Chitose Inst. of Science and Tech.)

----- Break ( 20 min. ) -----

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Wed, Nov 14 PM <<Session 4>> --Relays-- (15:00 - 16:40)
Chair: Makoto Hasegawa
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(12) 15:00 - 15:20
The Effect of Power Supply Voltage on Make & break Duration of Relays
Li Zhenbiao, Zhang Huan (Huazhong Univ. of Science & Tech.), Makoto Hasegawa (Chitose Inst. of Science and Tech.)

(13) 15:20 - 15:40
A Study of Contact Spots on Earthquake Disaster Prevention Relays
Yoshitada Watanabe, Yuichi Hirakawa (Kogakuin Univ.)

(14) 15:40 - 16:00
Study on Arc of Electromagnetic Relay Contacts Opening a DC Low Current Resistive Circuit with a Constant Velocity
Guofu Zhai, Xue Zhou (Harbin Inst. of Tech.)

(15) 16:00 - 16:20
The analysis of electromagnetic relay
-- Dynamic characteristics taking into account uniform constant magnetic field's disturbance --
Guofu Zhai, Qiya Wang, Wanbin Ren (Harbin Inst. of Technology)

(16) 16:20 - 16:40
Nonlinear vibration characteristics of beam structure in electromagnetic relay
Wanbin Ren, Yinghua Chen, Guofu Zhai (Harbin Inst. of Tech.)

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Thu, Nov 15 AM <<Session 5>> --Material-- (09:10 - 10:10)
Chair: Isao Minowa
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(17) 09:10 - 09:30
Galvanically Deposited Gold Layers for Switching Contacts in High Temperature Ambient
Werner Johler (Tyco Electronics Logistics AG)

(18) 09:30 - 09:50
Electrorheology of Acrylic Rubber and Lead Zirconate Titanate
N. Tangboriboon (Kasetsart Univ.), A. Sirivat, S. Wongkasemjit (Chulalongkorn Univ.)

(19) 09:50 - 10:10
Degradation phenomenon of electrical contacts by hammering oscillating mechanism
-- Relation to sliding contact mechanism --
Shin-ichi Wada, Taketo Sonoda, Hiroshi Amao, Yasuo Takahashi, Mitsuo Kikuchi, Hiroaki Kubota (TMC System), Koichiro Sawa, Kei Koga, Ryo Nishioka (Keio Univ.)

----- Break ( 15 min. ) -----

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Thu, Nov 15 AM <<Session 6>> --Fundamentals-- (10:25 - 11:45)
Chair: Werner Johler
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(20) 10:25 - 10:45
Contact Resistance Characteristics of Complex Structure Contacts for Contaminated Printed Circuit Board in SO2 Environment
Terutaka Tamai, Yasushi Saitoh (Mie Univ.), Yasuhiro Hattori (AutoNetwork Technologies)

(21) 10:45 - 11:05
Frequency dependence of electrical nonlinear distortion by heat oscillation on a two dimensional metal bridge
Isao Minowa (Tamagawa Univ.)

(22) 11:05 - 11:25
Effect of change in the time of charging voltage on spark discharge from a metal disk
Hajime Tomita (National Inst. of Occupational Safety and Health)

(23) 11:25 - 11:45
A Method for Vibration Resistance Optimization of Irregular-shape Beam Structure Basing on FEM and SQP
Yinghua Chen, Wanbin Ren, Guofu Zhai (Harbin Inst. of Tech.)

----- Break ( 75 min. ) -----

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Thu, Nov 15 PM <<Session 7>> --Modeling-- (13:00 - 14:40)
Chair: Noboru Morita
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(24) 13:00 - 13:20
A Study on Heat Analysis for Breaking Contact with Low Velocity (Part 2)
-- Influence of Holder Structure on Temperature Rise of Electrode (Part 2) --
Kazuaki Miyanaga, Yoshiki Kayano (Akita Univ.), Tasuku Takagi (Em. Prof. Tohoku Univ.), Hiroshi Inoue (Akita Univ.)

(25) 13:20 - 13:40
3-D Finite Element Analysis of Dynamic Characteristics of Twin-Type Relay Interfered by Uniform Constant Magnetic Field
Guofu Zhai, Wenying Yang, Xue Zhou (Harbin Inst. of Tech.)

(26) 13:40 - 14:00
Simulation and Experimental Study of Arc Motion in a Low-Voltage Circuit Breaker Considering Wall Ablation
Qiang Ma, Mingzhe Rong (Xi'an Jiaotong Univ.), Anthony B. Murphy (CSIRO Industrial Physics), Yi Wu, Tiejun Xu (Xi'an Jiaotong Univ.), Fei Yang (CSIRO Industrial Physics)

(27) 14:00 - 14:20
Thermal Analysis of AC Contactor Using Thermal Network Finite Difference Analysis Method
Chunping Niu, Degui Chen, Xingwen Li, Weixiong Tong, Yingsan Geng (Xi'an Jiaotong Univ.)

(28) 14:20 - 14:40
Simulation of SF6 arc characteristcs concerning different pressure boundary condition
Jian Zhang, Shenli Jia, Xingwen Li, Zongqian Shi, Lijun Wang (Xi'an Jiaotong Univ.)

----- Break ( 20 min. ) -----

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Thu, Nov 15 PM <<Session 8>> --Contactors & Breakers-- (15:00 - 16:20)
Chair: Koichiro Sawa
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(29) 15:00 - 15:20
An Improved Method to Measure Current Density Distribution in the Root of a Moving Arc at the Cathode Surface
Tiejun Xu, Mingzhe Rong, Yi Wu, Xiaohua Wang, Qiang Ma, Jianjun Yao (Xi'an Jiaotong Univ.)

(30) 15:20 - 15:40
Analysis and Optimization for AC Contactor with Feedback Controlled Magnet System
Yingyi Liu, Degui Chen, Yingsan Geng, Chunping Niu, Liang Ji, Weixiong Tong (Xi'an Jiaotong Univ.)

(31) 15:40 - 16:00
Analysis and Optimization for the Operating Mechanism of Air Circuit Breaker
Degui Chen, Liang Ji, Yunfeng Wang, Yingyi Liu (Xi’an Jiaotong Univ.)

(32) 16:00 - 16:20
The Influence of the Insulation Baffle of Iron Splitter Plates on Arc Behavior
Xingwen Li, Degui Chen (Xi’an Jiaotong Univ.), Yimin You (Xi'an High Voltage Apparatus Research Institute), Qian Wang (Applied Materials China)

----- Closing ( 5 min. ) -----

# Information for speakers
General Talk will have 15 minutes for presentation and 5 minutes for discussion.

# CONFERENCE SPONSORS:
- This conference is co-sponsored by the Research and Engineering Meeting of Electromechanical Components and Contact Technology.

# CONFERENCE ANNOUNCEMENT:
- Please join us for a social at the evening of 14th.

=== Technical Committee on Electromechanical Devices (EMD) ===
# FUTURE SCHEDULE:

Fri, Dec 21, 2007: Japan Aviation Electronics Industry,Limited [Wed, Oct 10]
Fri, Jan 25, 2008: Kikai-Shinko-Kaikan Bldg. [Mon, Nov 19]
Fri, Feb 15, 2008: [Mon, Dec 10]

# SECRETARY:
Toru Kawai（JAE）
TEL (042) 549-9262、FAX (042) 549-9583
E-mail: