Kobe University Repository : Kernel

タイトルTit le

非ガウス型ランダム振動が包装内容品の応答に与える影響 : 実験による検討(Effect of Non-Gaussian Random Vibrat ion on PackagingResponse Using Physical Simulat ion)

著者Author(s) 細山, 亮 / 斎藤, 勝彦 / 中嶋, 隆勝

掲載誌・巻号・ページCitat ion 日本包装学会誌,22(4):269-278

刊行日Issue date 2013-08-01

資源タイプResource Type Journal Art icle / 学術雑誌論文

版区分Resource Version publisher

権利Rights

DOI

JaLCDOI

URL http://www.lib.kobe-u.ac.jp/handle_kernel/90002169

PDF issue: 2020-08-18

fJ*@1!i¥~lt Vol.22 No.4 (2013)

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Effect of Non-Gaussian Random Vibration on Packaging Response

Using Physical Simulation

Akira HOSOYAMA *, Katsuhiko SAITO** and Takamasa NAKAJIMA *

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We have proposed a new method for non-Gaussian random vibration testing to improve the currently used random vibration test The comparison of wavefonns on the vibration table shows that the proposed method is expected to ensure a more appropriate vibration test because it can generate vibrations closer to those produced during actual transportation when compared to the traditional method. On the other hand, the contents of a package are SlllTOilllded by cushioning material, and therefore, Vibration is transmitted to the contents through cushioning material. However, the influence of the non-Gaussianity of the Vibration table on the contents of a package has not been examined experimentally; thus, the difference in the response acceleration of the contents between the proposed and the traditional methods is not clear. ill this paper, a dtnnmy package on the vibration table is vibrated by actual transportation and using both the traditional and the proposed methods, and the response acceleration of the contents of a package is measured. The result shows that the non-Gaussianity of the acceleration of the Vibration table influences the response acceleration of the contents of a package, and the accumulated fatigue of the contents changes depending on the kurtosis of the Vibration table.

Keywords: Packaging, Transportation, Vibration Test, Non-Gaussian Distribution, Kurtosis, Response

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Tablel Comparison of kurtosis, skewness and RMS between acceleration time series

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Vibration table

Input acceleration Kurtosis Skewness

'Actual transportation' 9.0 0.0

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Acrylic box

RMS RMS Kurtosis Skewness

(m/ S2) (m/52)

10.1 4.5 -0.1 3.9

10.1 6.2 0.1 3.9

10.2 2.9 0.0 4.0

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10.1 6.2 0.6 3.3

10.1 2.9 0.2 3.3

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2.0

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Fig.9 Comparison of the accumulated fat igue among 'actual transportation' , the proposed

and the traditional methods in the case that a package is fastened

to the vibration table with a las hing belt

2.0 ------ --------------------------.-----.-----------

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(a) The accumulated fatigue obtained

by the peak method

2.0

Actual Proposed transportation method

Traditional method

(b) The accumulated fatigue obtained

by the range method

Fig.l0 Comparison of the accumulated fat igue among 'actual transportation ' . the proposed

and the traditional methods in the case t hat a package is unfastened to the vibration table

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<5Im)c~>

1) if-llHlJ3'f. t:p~I1;IliIlJ. 13 *~~~~~. 19(2). 113-121(2010)

2) A. Steinwolf and WH. Connon III, Sound

and Vibration, February, 12-17(2005)

3) V. Rouillard and M. A. Sek, Packaging

Technology and Science, 23(8),

423-439(2010)

- 278 -

4) *-!IILli3'f. t:p~I1;IliIlJ. 13 *~~~~~, 20(1). 27-34(2011)

5) if-I!ILli3'f, *RillJm. t:p~I1;IliIlJ. 13 *~ ~~~~. 21(2), 107-114(2012)

~ ~Lli3'f.*RillJm. t:pCIliIlJ. 13*~

~~~~. 21(6), 471-478(2012)

7) A. Steinwolf, Sound and Vibration,

September, 12-21(2006)

8) A. Steinwolf, Probabilistic Engineering

Mechanics, 14,289-299(1999)

9) JIS E 4031:2008, ~ili.fi!iifflJl~-.~

&. afJj~1fit~jJr~

10) tc t: ;:tl'i. 13 *tt;f-l-~~if~, "tt;f-l-5mlt ~". 13 *tt;f-l-~~. p.117(2001)

(JJ¥:f/iii~{t 2013 ip 2 j} 7 13)

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