摘要
为明确香瓜的振动特性,减轻香瓜在运输过程中的机械损伤。选取绿宝石香瓜作为研究对象,采用有限元模态分析和试验模态分析相结合的方法,建立香瓜的三维模型,对香瓜的前五阶模态频率和模态振型进行分析比较。香瓜的主要共振频率在130 Hz、180 Hz、220 Hz、300 Hz、400 Hz等频率附近。结果表明,试验模态分析和有限元模态分析的结果偏差小于10%,有良好的一致性。该研究可为香瓜的包装、贮藏和运输提供理论依据。
It is important to clarify the vibration characteristics of muskmelons for reducing the mechanical damage during transportation.This paper chooses emerald-muskmelon as the research object,establishes a three-dimensional model of muskmelon by combining finite element modal analysis with experimental modal analysis,and compares the first twenty modal frequencies and modal modes ofmuskmelon.The results showed that the main resonance frequency of muskmelon were 130 Hz、180 Hz、220 Hz、300 Hz、400 Hz.The deviation between experimental modal analysis and finite element modal analysis was less than 10%,which showed good consistency.This study can provide theoretical basis for packaging,storage and transportation of muskmelon.
作者
李敏通
杜雄梓
刘志杰
焦崇珊
朱盟盟
Li Mintong;Du Xiongzi;Liu Zhijie;Jiao Chongshan;Zhu Mengmeng(College of Mechanical and Electronic Engineering,Northwest A&F University,Yangling,712100,China)
出处
《中国农机化学报》
北大核心
2020年第6期83-87,共5页
Journal of Chinese Agricultural Mechanization
基金
“十三五”国家重点研发计划课题(2016YFD0700503)。
关键词
香瓜
振动特性
模态分析
有限元分析
模态试验
muskmelon
vibration characteristics
modal analysis
finite element analysis
modal test
