AbstractIn order to examine the equivalency of package abrasion caused by loading and vibration during actual transport and that generated by laboratory vibration testing, the results of transport trials were compared with horizontal vibration tests in the laboratory using sample packages made of white corrugated f ibreboard printed with checkered patterns. The following results were obtained.(i) The relationship between the abrasion occurring in the transport trials and that generated in the horizontal vibration tests at an acceleration of 1 G is that the average transport trial is equivalent to a 5 min laboratory vibration test. The maximum abrasion found in the transport trials was almost equivalent to a vibration test performed for 20 min. Thus we conclude that a 20 min laboratory vibration test can be used as a reference for package abrasion in transport.(ii) The vibration variables of frequency and contact surface pressure were also analysed at a low horizontal vibration frequency, and an acceleration of 0.5 G (i.e. a high speed of rubbing). An abnormally high abrasion ratio was found with the high contact surface pressure.(iii) The average height and number of drops caused by handling during transport were: flat drops from 6 cm on nine occasions; edge drops from 20 cm on 12 occasions; and corner drops from 29 cm on three occasions. At heights over 30 cm, where damage to packages can be anticipated, three drops occurred, from 40 cm including a maximum drop of 72 cm. These levels can be considered as equivalent to Level III, a standard load, of the JIS X 0200 Distribution Classification.
展开▼
