摘要
基于对西瓜结构振动特性的分析，提出了对西瓜进行理论建模的空心球与实心球理论，通过有限元计算与振动模态试验对比，验证了上述理论的合理性，并找出了多边形振型这一区别成熟与未成熟瓜的特征模态。
In this paper, a hollow ball and a solid ball model were established for watermelons based on the analysis of their structural vibration characteristics. The models were verified through the comparison of finite element method and model test . The polygon shaped vibration modes were found to be a feature of matured watermelons.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
1998年第2期231-234,共4页
Transactions of the Chinese Society of Agricultural Engineering
关键词
西瓜
成熟度
无损检测
振动理论
watermelons, vibration, non destructive evaluation
