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本文研究了用自由响应确定结构数学模型技术。然后根据数学模型确定振动参数。用集中参数系统或分布参数系统模拟的响应证明:甚至在固有频率间隔很密、阻尼很高而用频域法失败的情况下,该技术能给出极好的结果。
In this paper, we study the technology of determining structural mathematical model with free response. Then the vibration parameters are determined according to the mathematical model. The simulation of the system with a centralized parameter system or a distributed parameter proves that this technique gives excellent results even when the natural frequency is very dense and the damping is high and fails in the frequency domain.