梁结构中振动功率流的测量研究

Measurement of Beam Structure Vibration Power Flow

研究了梁结构中的振动功率流，给出了梁中振动功率流的一般测量方法，并对实验研究结果进行了分析．研究结果表明：可以根据“无限梁”的速度导纳测量梁中的输入振动功率流．

Vibration power flow in the beam is studied.The general vibration power flow vector measurement method is put forward,and then the test results are analyzed.The vibration power flow in the finite beam could be measured by means of the velocity mobility of the “infinite beam”.