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BibTeX
The Statistical Characteristics of Maxima of Contact Force in Stacked Packaging Units under Random Vibration
Packaging technology & science, 2018-05, Vol.31 (5), p.261-276
Fang, Ke
Wang, Zhi‐Wei
2018
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Fang, Ke
Wang, Zhi‐Wei
Titel
The Statistical Characteristics of Maxima of Contact Force in Stacked Packaging Units under Random Vibration
Ist Teil von
Packaging technology & science, 2018-05, Vol.31 (5), p.261-276
Ort / Verlag
Bognor Regis: Wiley Subscription Services, Inc
Erscheinungsjahr
2018
Quelle
Wiley Online Library All Journals
Beschreibungen/Notizen
Stacked packaging units are the major form when transporting packaged products. In these stacked packaging units, the maxima of contact force between boxes are closely related with fatigue, the main failure form of packaged products during transportation, which can be simulated by random vibration. Therefore, this paper proposes a probability density function (PDF) of maxima for stationary Gaussian random signal with non‐zero mean and non‐unit variance to study the statistical characteristics of the maxima of contact force in three‐layer stacked packaging units, which is of vital importance to the fatigue evaluation. The proposed PDF of maxima is controlled by three parameters: spectral width parameter ϵ, mean value μx and variance σx. These three parameters are obtained respectively under three different impact factors, namely, constraint, acceleration excitation and location of contact surface. Power spectrum density (PSD) of contact force and PSDs' Q factors are also calculated. Relations and variations of the three parameters of PDF of maxima, PSD and PSD's Q factor under different impact factors are discussed in detail. It is found that the system of the three‐layer stacked units with a wide‐band excitation (ϵ → 1) as input and contact force (ϵ<1) as output can be regarded as a relatively narrow band system. And the proposed PDF of maxima proves to be an effective method to investigate the statistical characteristics of the maxima of contact force between boxes in the stacked packaging units. Copyright © 2017 John Wiley & Sons, Ltd. This paper proposes a probability density function of maxima for stationary Gaussian random signal with non‐zero mean and non‐unit variance to study the statistical characteristics of the maxima of contact force in stacked packaging unit. Three parameters of probability density function are obtained respectively under three different impact factors, namely, constraint, acceleration excitation and location of contact surface. Relations and variations of the three parameters, PSD of contact force and PSD's Q factor under different impact factors are discussed in detail.
Sprache
Englisch
Identifikatoren
ISSN: 0894-3214
eISSN: 1099-1522
DOI: 10.1002/pts.2313
Titel-ID: cdi_proquest_journals_2026282015
Format
–
Schlagworte
Boxes
,
Contact force
,
Crack propagation
,
Excitation
,
Fatigue failure
,
Gaussian distribution
,
Impact factors
,
Mathematical analysis
,
maxima of contact force
,
narrow band
,
non‐unit variance
,
non‐zero mean
,
Packaging
,
Parameters
,
Probability density functions
,
Q factors
,
Random vibration
,
stacked packaging units
,
Statistical analysis
,
Variance
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