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Improvement of Equivalent Drop Theory for Transport Packaging
Author(s) -
Zhong Chen,
Saito Katsuhiko,
Kawaguchi Kazuaki
Publication year - 2013
Publication title -
packaging technology and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 50
eISSN - 1099-1522
pISSN - 0894-3214
DOI - 10.1002/pts.1961
Subject(s) - drop test , cushioning , drop (telecommunication) , transport theory , reliability (semiconductor) , shock (circulatory) , mechanics , shock response spectrum , shock absorber , engineering , mathematics , structural engineering , physics , thermodynamics , mechanical engineering , classical mechanics , statistical physics , acceleration , medicine , power (physics)
In this study, the reliability of the traditional equivalent drop theory for transport packaging was experimentally evaluated, and a new physical model that considers the factor of friction was proposed. Using this new model, mathematical shock response equations of a shock test and a test at free‐fall were deduced. In addition, a correcting condition was reached. To let the equivalent free‐fall height be exactly equivalent, a new friction equivalent drop theory was proposed. This theory not only significantly reduces experimental errors and improves the accuracy of equivalent experiments but also provides a new theoretical basis for experimental analysis of structural cushioning materials. Copyright © 2012 John Wiley & Sons, Ltd.