首页|Cushioning Performance of a Novel Polyurethane Foam Material Applied in Fragile Packaging
Cushioning Performance of a Novel Polyurethane Foam Material Applied in Fragile Packaging
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For fragile products,packaging requires cushioning protection to prevent irreversible damage from accidental falls,transporta-tion 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 experi-ments 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.
Flexible polyurethane foamPackaging of fragile goodsNonlinear dynamicsVibration frequencyFinite element simulation
Huifeng Xi、Chunqiu Guo、Jinbiao Yang、Xiaogang Wang、Bowei Wang、Shiqing Huang、Zhiwei Wang
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School of Mechanics and Construction Engineering,Jinan University,Guangzhou 510632,China
MOE Key Lab of Disaster Forecast and Control in Engineering,Jinan University,Guangzhou 510632,China
Foshan Soft Valley Technology Co.,Ltd.,Foshan 528000,China
College of Packing Engineering,Jinan University,Zhuhai 519070,China
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National Natural Science Foundation of ChinaNational Natural Science Foundation of China
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