基于虚拟堆积试验的食用玫瑰花瓣离散元参数标定  

Discrete element parameter calibration of edible rose petals based on virtual stacking test

作　　者：勾富强 尹志宏[1] 牛宪伟 严跃拨 GOU Fu-qiang;YIN Zhi-hong;NIU Xian-wei;YAN Yue-bo(School of Mechanical and Electrical Engineering,Kunming University of Technology,Kunming,Yunan 650500,China;Teng-ling Machinery Technology〔Yunnan〕Co.,Ltd.,Kunming,Yunan 650500,China)

机构地区：[1]昆明理工大学机电工程学院,云南昆明650500 [2]腾翎机械科技〔云南〕有限公司,云南昆明650500

出　　处：《食品与机械》2022年第8期106-110,130,共6页Food and Machinery

基　　金：云南省重大科技专项计划“先进装备制造重大专项”(编号:2018ZC001)。

摘　　要：目的:标定食用玫瑰花瓣离散元仿真参数。方法:采用离散元方法建立柔性食用玫瑰花瓣离散元模型,通过物理堆积试验与虚拟堆积试验相结合,依次采用Placket-Burman试验、最陡爬坡试验和Box-Behnken试验确定对堆积角影响显著的因素以及参数值,并对显著性参数进行寻优求解。结果:参数优化后影响堆积角显著性因素的取值为:花瓣—花瓣碰撞恢复系数为0.05,花瓣—花瓣滚动摩擦系数为0.051,花瓣—不锈钢碰撞恢复系数为0.046。结论:基于虚拟堆积试验实现了食用玫瑰花瓣离散元仿真参数标定。Objective:Calibration of discrete element simulation parameters of edible rose petals.Methods:The discrete element method was used to establish the discrete element model of flexible edible rose petals.The combination of physical accumulation test and virtual accumulation test,the placket Burman test,the steepest climbing test and box Behnken test were used to determine the significant factors and parameter values that affect the accumulation angle,and the significant parameters were optimized.Results:The values of the significant factors affecting the stacking angle after parameter optimization were:petal-petal collision recovery coefficient was 0.05,petal-petal rolling friction coefficient is 0.051,petal-stainless steel collision recovery coefficient was 0.046.Conclusion:Based on the virtual stacking experiment,the parameters of discrete element simulation of edible rose petals are calibrated.

关 键 词：食用玫瑰 花瓣 离散元 参数标定 虚拟堆积试验 

分 类 号：TS20[轻工技术与工程—食品科学]