STABILITY CRITERION FOR THERMAL FLUTTER OF A SPACE BEAM

被引：2
|
作者：
Zhang, Junhui [1 ]
机构：
[1] North China Univ Technol, Sch Civil Engn, Beijing 100144, Peoples R China
来源：
JOURNAL OF THERMAL STRESSES | 2015年 / 38卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Flexible space structure; Nonlinear dynamic system; Stability criterion; Thermally induced vibration; INDUCED VIBRATION; FLEXIBLE BOOM;
D O I：
10.1080/01495739.2015.1073985
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Thermal flutter of a space beam is devastating for the safety of whole spacecraft. A coupled thermal-structural dynamic model of a space beam and its approximate solution are derived for the stability analysis. A new analytical criterion for thermal flutter of a beam considering the effects of tip mass and damping is established according to the first Lyapunov method. The exact limits on beam length, tip mass, damping and incident angle of heat flux are obtained from the presented criterion and are verified by numerical results. The presented criterion provides a clear design guideline to prevent the thermal flutter of a space beam from happening in space engineering.
引用
收藏
页码：1395 / 1408
页数：14
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