摘要
本文给出了在结构上进行点加质量和两点间加杆的固有频率灵敏度分析和结构修改的方法。对一空间框架结构进行的有限元分析和实验结果表明，该方法给出的灵敏位置确切，误差小，使用方便。
This paper introduces the principle of structural dynamic behaviour sensitivity analysis on natural frequency and the application of structure modification technique by adding an attached mass or an attached element on a structure. The analytical results, carried out on a framework model, are coincident with that of both the finite element method and the experimental modal analysis. The method is verified to be practicable and useful.
出处
《振动与冲击》
EI
CSCD
北大核心
1996年第3期55-60,共6页
Journal of Vibration and Shock
基金
湖北省自然科学基金
关键词
固有频率
灵敏度
结构振动
振动
natural frequency, sensitvity analysis, modal analysis
