Presentation 2014-12-19
An Evaluating Method for Fundamental Dynamical Parameters of Objects on a Printed Circuit Board (8) : The effect by application time of external force (3)
Shin-ichi Wada, Keiji Koshida, Hiroaki Kubota, Koichiro Sawa,
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Abstract(in English) Authors, first, analyse the transient response and steady-state one using theoretical inputs developed by Fourier series and the analytical outputs when input waveform is sinusoidal or quasi-impulsive. When the input is quasi-impulsive and the value "r(=τ/T)" is smaller than 0.005, it is shown that there are characteristics of input waveform and of output one. Second, they examine the mechanism of collision theoretically and experimentally the characteristics by a Hammering Oscillation Mechanism (HOM). Loads, impulses, and accelerations are almost in proportion to the initial heights. On the other hand, the duration times are most in proportion to the weights. Finally, they also examine the frequency distributions of experimental accelerations under some conditions. They consider that the distribution reflects the dynamical properties of the experimental object.
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Paper # EMD2014-95
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Conference Date 2014/12/12(1days)
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Language ENG
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Title (in English) An Evaluating Method for Fundamental Dynamical Parameters of Objects on a Printed Circuit Board (8) : The effect by application time of external force (3)
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1st Author's Name Shin-ichi Wada
1st Author's Affiliation RD Department Marketing Research Headquarters TMC System Co. Ltd.()
2nd Author's Name Keiji Koshida
2nd Author's Affiliation RD Department Marketing Research Headquarters TMC System Co. Ltd.
3rd Author's Name Hiroaki Kubota
3rd Author's Affiliation RD Department Marketing Research Headquarters TMC System Co. Ltd.
4th Author's Name Koichiro Sawa
4th Author's Affiliation Faculty of Engineering Nippon Institute of Thechnology
Date 2014-12-19
Paper # EMD2014-95
Volume (vol) vol.114
Number (no) 382
Page pp.pp.-
#Pages 6
Date of Issue