The natural frequency, damping ratio and mode shape of a multi-degree-of-freedom system are analyzed and the identified results are in good agreement with the theoretical values.
并针对一多自由度系统具体论述了固有频率、阻尼比和振型的识别方法，识别结果与理论结果吻合较好。
2
Using multi variable frequency domain stability criterion, this paper analyzes the stability of the adaptive laser resonator system.
用多变量频域稳定性判据，分析了自适应激光谐振腔系统的稳定性。
3
AIM To develop demodulation methods with high anti-noise ability and high speed for data acquisition system inelectrical impedance multi-frequency and parameter tomography.