| Presentation | 2013-11-16 An Evaluating Method for Fundamental Dynamical Parameters of Objects on a Printed Circuit Board : Natural Frequency and Damping Ratio (2) Shin-ichi WADA, Keiji KOSHIDA, Hiroaki KUBOTA, Koichiro SAWA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Authors developed the mechanism which gives real vibration to electrical contacts by hammering oscillation in the vertical direction similar to real cases and studied the influences of micro-oscillating on contacts. Using an evaluating method (Method 1), the real dynamical parameters: to effective mass, effective force, and effective acceleration are obtained under the influence of external micro-oscillation. In addition another evaluating method (Method 2) reaches the real dynamical parameters: natural frequency and damping ratio. It is possible to known the values of effective mass m, effective force F and effective acceleration α_0 from Method 1 in previous paper and natural frequency ω_0 and damping ratio ζ from Method 2 in this paper. And it is possible to obtain the approximate dynamical properties of the objects by some equations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | electrical contact / micro-oscillation / degradation phenomenon / acceleration / force / mass / natural frequency / damping ratio |
| Paper # | EMD2013-79 |
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| Conference Information | |
| Committee | EMD |
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| Conference Date | 2013/11/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Electromechanical Devices (EMD) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Evaluating Method for Fundamental Dynamical Parameters of Objects on a Printed Circuit Board : Natural Frequency and Damping Ratio (2) |
| Sub Title (in English) | |
| Keyword(1) | electrical contact |
| Keyword(2) | micro-oscillation |
| Keyword(3) | degradation phenomenon |
| Keyword(4) | acceleration |
| Keyword(5) | force |
| Keyword(6) | mass |
| Keyword(7) | natural frequency |
| Keyword(8) | damping ratio |
| 1st Author's Name | Shin-ichi WADA |
| 1st Author's Affiliation | TMC System Co. Ltd.() |
| 2nd Author's Name | Keiji KOSHIDA |
| 2nd Author's Affiliation | TMC System Co. Ltd. |
| 3rd Author's Name | Hiroaki KUBOTA |
| 3rd Author's Affiliation | TMC System Co. Ltd. |
| 4th Author's Name | Koichiro SAWA |
| 4th Author's Affiliation | Keio University:Nippon Institute of Technology |
| Date | 2013-11-16 |
| Paper # | EMD2013-79 |
| Volume (vol) | vol.113 |
| Number (no) | 298 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |