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Analysis of vibration and shock occurring in transport systems
Author(s) -
Hasegawa Kiyohide
Publication year - 1989
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.2770020204
Subject(s) - extrapolation , weibull distribution , mathematics , shock (circulatory) , irrational number , acceleration , vibration , function (biology) , distribution (mathematics) , mathematical analysis , statistics , physics , geometry , classical mechanics , medicine , quantum mechanics , evolutionary biology , biology
The agreement between the practical data and theoretical values has been examined for almost all of the formulae used to determine the optimum function that can express the relationship between the shock‐acceleration or vibration‐acceleration and their number of occurrences. These formulae, however, are not always suitable for all analyses. In order to find the optimum formula for each condition, the following points have been considered: i agreement between the calculated value and measured data ii difficulty in the calculation procedure iii difficulty in comparison of the data obtained iv possibility of extrapolation.The following results were obtained: i In general, hybrid function, irrational function and Weibull distribution can be used to express the relationship. ii For comparison of experimental data obtained in different transport conditions, irrational function and Weibull distribution have fewer parameters than other functions. iii In the case of the package test condition where an extrapolation is required, the hybrid function and irrational function are the most suitable.