基于3次Bezier曲线的缓冲包装CAD框架构建
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Framework Construction for Cushioning Packaging CAD Based on Three Cubed Bezier Curve
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    摘要:

    针对缓冲材料静态压缩试验得到的应力—应变曲线多为非线性、分段拟合时不易收敛的特点,提出了利用3次Bezier曲线分段拟合应力—应变曲线的方法,由此可以推导出缓冲系数,进而得到缓冲系数—最大应力参数方程;基于3次Bezier曲线,提出了从缓冲材料试验开始至缓冲包装设计结束的设计流程,并探讨了开发基于3次Bezier曲线的计算机辅助缓冲包装设计软件框架;软件能够实现根据“新材料”静态压缩应力—应变试验曲线得到缓冲系数—最大应力参数方程;并将处理数据添加到“已有材料”,利用“已有材料”进行缓冲包装设计时,只需输入等效跌落高度H、产品脆值G、产品重量W(或产品表面积S)即可得到缓冲衬垫的面积A和厚度T,大大提高了缓冲包装设计的效率。

    Abstract:

    In view of the fact that the stress-strain curves obtained from static compression tests of cushioning materials were mostly non-linear and were not easy to converge in piecewise fitting,a method of piecewise fitting of stress-strain curves by using three cubed Bezier curve was proposed.From this,the cushioning coefficient could be deduced,and then the cushioning coefficient-maximum stress parameter equation could be obtained.Based on three cubed Bezier curve,the design process from the beginning of cushioning material test to the end of cushioning packaging design was proposed. And the software framework of computer aided cushioning packaging design three cubed Bezier curve was discussed. According to the static compression stressstrain curve of new material,the cushioning coefficient-maximum stress parameter equation could be obtained by the software. And the processed data was added to existing material. When using existing materials for cushioning packaging design,only equivalent drop height H,product fragility G,product weight W (or product surface area S) could be input to obtain the area A and thickness T of the cushion,which greatly improved the efficiency of cushioning packaging design.

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徐绍虎, 崔爽.基于3次Bezier曲线的缓冲包装CAD框架构建[J].重庆工商大学学报(自然科学版),2019,36(6):111-115
XU Shao-hu, CUI Shuang. Framework Construction for Cushioning Packaging CAD Based on Three Cubed Bezier Curve[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2019,36(6):111-115

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  • 在线发布日期: 2019-11-25
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