哈尔滨工程大学学报2024，Vol.45Issue(4)：709-716,8.DOI:10.11990/jheu.202205046
温度场下功能梯度圆锥壳-环板振动特性分析
Vibration characteristics of a functionally graded material conical shell-annular plate combined tructure under a temperature field
摘要
Abstract
Herein,the vibration characteristics of a functionally graded material conical shell-annular plate com-bined tructure under a temperature field are analyzed on the basis of the first-order shear deformation theory and Rayleigh-Ritz method.The displacement variables of the combined structure are represented using the spectro-geometric method,and a vibration analysis model considering temperature-related material parameters is estab-lished.The boundary conditions are simulated by introducing artificial boundary springs.In the numerical exam-ples,the accuracy of the vibration analysis model is verified by comparing it with literature solutions and finite ele-ment solutions.The effects of parameters such as size,material,temperature and connection position on the vibra-tion characteristics of the combined structure are then analyzed.The results show that the fundamental frequency of the combined structure increases with the increase in thickness and decreases with the increase in power law index,semiapex angle,and temperature field parameters.It also presents a nonsingle variation trend as the inner diameter and connection position of the annular plate change.关键词
谱几何法/温度场/功能梯度结构/圆锥壳-环板组合结构/自由振动/一阶剪切变形理论/边界弹簧/结构基频Key words
spectro-geometric method/temperature field/functionally graded material/conical shell-annular plate combined structure/free vibration/first-order shear deformation theory/boundary spring/fundamental frequency分类
机械工程引用本文复制引用
左朋,石先杰..温度场下功能梯度圆锥壳-环板振动特性分析[J].哈尔滨工程大学学报,2024,45(4):709-716,8.基金项目
国家自然科学基金项目(51975547,52375136) （51975547,52375136）
中国工程物理研究院院长基金项目(YZJJLX2018008). （YZJJLX2018008）
