简支梁模态参数方法的研究

Research of mode methods to test a simple supported beam

现今对结构模态的测试大都集中于加速度响应或速度响应,对其他响应做出研究的较少。用简支梁在环境激励下的倾角数据进行模态分析,先通过理论分析,再通过试验方法分别得到简支梁的模态参数。最终发现两者的结果大致相同,因此通过简支梁的倾角数据能够测试模态参数,拓展了倾角仪在工程中的应用范围。

The structure modal test mostly concentrate on acceleration response and other responses are less to study. This paper will test simply supported beam for the modal analysis by inclinometer data. Through the theoretical analysis and experimental analysis separately get the beam modal parameters. And the two results are roughly same. In structural vibration of tests,the beam is a representative sample. Expand the application range of inclinometer.