Packaging inspection of dangerousexport goods by the commoditiesinspection administration in Chinadeveloped from the inspection of sea-bornedangerous goods on July 1, 1985. From May1, 1995, the inspection was extended...Packaging inspection of dangerousexport goods by the commoditiesinspection administration in Chinadeveloped from the inspection of sea-bornedangerous goods on July 1, 1985. From May1, 1995, the inspection was extended to air-transport dangerous goods. The relateddepartments for commodities inspection hasconducted strict inspection in conformitywith the law and cordial service in the pastdecade, achieving remarkable results. Theirhard efforts have helped improve the packagingquality of dangerous export goods,展开更多
For fragile products,packaging requires cushioning protection to prevent irreversible damage from accidental falls,transportation impacts,and other causes.The new polyurethane foam(PUF)material demonstrates superior c...For fragile products,packaging requires cushioning protection to prevent irreversible damage from accidental falls,transportation impacts,and other causes.The new polyurethane foam(PUF)material demonstrates superior cushioning and vibration isolation performance in practical applications,effectively minimizing damage from vibrations.Drop and vibration experiments were conducted on packages comprising novel PUF,expandable polyethylene,ethylene-vinyl acetate copolymer foam,and bracelets.Results verify that the new PUF material outperforms in cushioning and vibration isolation,as observed from the acceleration response.Furthermore,a random vibration analysis of a packaging unit involving different thicknesses of PUF materials and bracelets reveals the enhanced vibration isolation effect within a specific thickness range.The vibration results of the bracelet’s outer packaging align closely with finite element simulation results,validating the effectiveness of designing and optimizing the outer packaging.Through finite element simulation,deeper understanding and prediction of the bracelet’s vibration response under various conditions is achieved,facilitating optimized packaging design for better protection and vibration damping.展开更多
文摘Packaging inspection of dangerousexport goods by the commoditiesinspection administration in Chinadeveloped from the inspection of sea-bornedangerous goods on July 1, 1985. From May1, 1995, the inspection was extended to air-transport dangerous goods. The relateddepartments for commodities inspection hasconducted strict inspection in conformitywith the law and cordial service in the pastdecade, achieving remarkable results. Theirhard efforts have helped improve the packagingquality of dangerous export goods,
基金the National Natural Science Foundation of China(Grant Numbers 12172151 and 12172149).
文摘For fragile products,packaging requires cushioning protection to prevent irreversible damage from accidental falls,transportation impacts,and other causes.The new polyurethane foam(PUF)material demonstrates superior cushioning and vibration isolation performance in practical applications,effectively minimizing damage from vibrations.Drop and vibration experiments were conducted on packages comprising novel PUF,expandable polyethylene,ethylene-vinyl acetate copolymer foam,and bracelets.Results verify that the new PUF material outperforms in cushioning and vibration isolation,as observed from the acceleration response.Furthermore,a random vibration analysis of a packaging unit involving different thicknesses of PUF materials and bracelets reveals the enhanced vibration isolation effect within a specific thickness range.The vibration results of the bracelet’s outer packaging align closely with finite element simulation results,validating the effectiveness of designing and optimizing the outer packaging.Through finite element simulation,deeper understanding and prediction of the bracelet’s vibration response under various conditions is achieved,facilitating optimized packaging design for better protection and vibration damping.
