悬臂梁受迫振动的频谱分析  

Frequency Spectrum Analysis of Forced Vibrations of Cantilever Beams

作　　者：崔秀英[1] 

机构地区：[1]大连理工大学动力系

出　　处：《振动．测试与诊断》1995年第4期31-34,共4页Journal of Vibration,Measurement & Diagnosis

摘　　要：对几种不同尺寸悬臂梁，用不同激振频率激振，采取幅值谱分析的方法，在不同工况下，对大量振动信号进行分析处理和研究，总结出实际钢梁构件处于不同激振频率下的振动特点，情况虽然很复杂，但出现共振、谐共振及其他复杂振动的规律是明显的。in the paper analyis and research are made by use of amplitude spectrum analysis on a large amount of vibration signals generated by cantilever beams with different siges under different working conditions and excitation frequencies. Vibration characteristics of practical beams under different excitation frequencieo are eummarized. Although the situation is quite complex, regularities in resonances, harmenic vibrations and other complicated vibrations are clear.

关 键 词：悬臂梁 自振频率 幅值谱 谐共振 

分 类 号：TU323.301[建筑科学—结构工程]