Acceleration sensor is used to test modaldisplacement, and strain sensors are used to test modal strain.
振动测试中分别采用加速度传感器进行位移模态分析以及电阻应变片进行应变模态分析。
2
Some modal natural frequencies and damping coefficients of a structure are derived by means of in-sita testing displacement records and the time domain identification technique.
本文根据原型振动实测的位移记录，应用时间域识别法，求得了结构的前几阶模态的固有频率和阻尼比。
3
Strain modal test is applied to diagnosing the position and degree of structural damage, in consideration of the displacementmodal parameters being insensitive to damage.