| 纤维增强复合薄壳固有特性计算及验证 |
| |
| 引用本文： | 周正学,李晖,薛鹏程,吴怀帅,陈姝瑶.纤维增强复合薄壳固有特性计算及验证[J].中国机械工程,2018,29(10):1234. |
| |
| 作者姓名： | 周正学 李晖 薛鹏程 吴怀帅 陈姝瑶 |
| |
| 作者单位： | 1.东北大学机械工程与自动化学院，沈阳，110819
2.东北大学理学院，沈阳，110819 |
| |
| 基金项目： | 国家自然科学基金资助项目（51505070）；
中央高校基本科研业务费专项资金资助项目（N150304011，N160313002）
National Natural Science Foundation of China（No. 51505070）
Fundamental Research Funds for the Central Universities（No. N150304011，N160313002） |
| |
| 摘 要： | 对悬臂纤维增强复合薄壳的固有特性进行了计算及实验验证。针对纤维增强复合薄壳的结构特点，对其进行了理论建模；通过Rayleigh-Ritz法获得了复合薄壳的固有频率和振型结果；以T300碳纤维/树脂基复合薄壳为例，通过实验测试获得了前8阶固有频率和模态振型。验证结果表明求解的纤维增强复合薄壳固有频率计算结果与实验结果的误差在2.2%~9.3%之间，且两种方法获得的振型结果也吻合，验证了所提出的计算方法的正确性。
|
| 关 键 词： | 纤维增强复合薄壳 固有特性 悬臂边界 正交多项式 |
Natural Characteristic Calculation and Verification of FRCS |
| |
| ZHOU Zhengxue LI Hui XUE Pengcheng WU Huaishuai CHEN Shuyao.Natural Characteristic Calculation and Verification of FRCS[J].China Mechanical Engineering,2018,29(10):1234. |
| |
| Authors: | ZHOU Zhengxue LI Hui XUE Pengcheng WU Huaishuai CHEN Shuyao |
| |
| Affiliation: | 1.School of Mechanical Engineering and Automation， Northeastern University， Shenyang， 110819
2.College of Sciences， Northeastern University， Shenyang， 110819 |
| |
| Abstract: | Natural characteristics of FRCS under cantilever boundary were calculated and verified by experiments.Firstly， a theoretical model of FRCS was established by considering the structural characteristics.Then， the natural frequency and mode shape of FRCS were obtained by Rayleigh-Ritz method.Finally， T300 fiber/epoxy composite shell was taken as a study object， and the natural frequency and mode shape were measured by experimental tests.The results show that the errors of the natural frequencies from calculations and experiments are within the range of 2.2%~9.3%， the calculation results of the mode shapes are also consistent with the experimental ones， thus the correctness of proposed method was verified. |
| |
| Keywords: | fiber reinforced composite thin shell（FRCS） natural characteristic cantilever boundary orthogonal polynomial |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国机械工程》浏览原始摘要信息 |
|
点击此处可从《中国机械工程》下载全文 |
