缓冲包装设计引起的易损件移动现象的力学原理

发布时间：2018-01-18 06:35

本文关键词：缓冲包装设计引起的易损件移动现象的力学原理　出处：《包装工程》2017年21期 　论文类型：期刊论文

【摘要】：目的研究产品在物流运输搬运过程中易损件会发生转移的行为。方法提出轻型小机电产品包装冲击动力学模型,建立基于2个易损件的产品冲击动力学方程,得到易损件的峰值加速度与刚度比的关系图,并且采用Runge-Kutta法进行数值求解,获取2个易损件在半正弦激励脉冲激励下的冲击时域响应、冲击谱和破损边界曲线。结果产品在不同的刚度比下,各个部件出现损坏的先后顺序不同,谁先坏本质上取决于哪个部件的峰值加速度响应首先达到其脆值。结论研究揭示了易损件随着冲击激励和包装材料特性发生移动的现象和本质原因。
[Abstract]:Objective to study the transference behavior of easily damaged parts in the process of logistics transportation and transportation. Methods A dynamic model for packaging shock of light and small mechanical and electrical products was proposed, and the impact dynamic equations of the products based on two easily damaged parts were established. The relationship between the peak acceleration and stiffness ratio of the damaged parts is obtained, and the Runge-Kutta method is used to solve the problem, and the time-domain response of the two parts subjected to half-sinusoidal impulse excitation is obtained. Impact spectra and damage boundary curves. Results under the different stiffness ratio, the damage sequence of each component is different. The nature of the failure depends on which component's peak acceleration response first reaches its brittle value. Conclusion the study reveals the phenomenon and essential reason of the vulnerable parts moving along with the impact excitation and the packaging material characteristics.
【作者单位】：江南大学;江苏省先进食品装备制造技术重点实验室;
【分类号】：TB485.1
【正文快照】： 产品在整个物流运输搬运流程中,有来自环境的各种因素的作用。其物流环境中的任一个因素危害超过产品易损件所能承受的最大冲击加速度时,产品易损件都会有不同程度的损坏或者变形,以致产品失效[1—3]。在防止产品失效的各包装因素中,包装材料以及包装结构扮演着重要角色,对于

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