This method directly deals with measurable signal of the system, mathematical modal and relevant transcendental knowledge isn't needed, so it is more practical than other methods.
这种方法可直接处理系统的可测输出信号，不需要对象的数学模型和相关先验知识，具有较高的实用性。
It Outlines the fundamentals and the basic mathematical model of identifying modal frequency and damping by means of parameter identification with frequency domain and time domain.
简要介绍了用频域参数识别方法和时域参数识别方法识别模态频率和阻尼的基本原理和基本数学模型。
The impulse response method is adopted to identify the modal parameters, and the physical parameters are estimated from the characteristic equation of the mathematical model built.
本文采用了单位脉冲响应函数法识别模态参数，由所建数学模型的特征方程识别结合部的物理参数。
The new techniques are described in detail, including the mathematical model updating for complex structures, the virtual modal test techniques and the virtual vibration test techniques of shaker.
文中较详细地介绍了复杂结构模型修改新技术、虚拟模态试验技术和振动台虚拟振动试验技术。
The proposed methods are based on the modal coordinate equations, to avoid the tedious mathematical manipulation.
该方法建立在模态方程的基础上，避免了繁杂的数学过程。
The proposed methods are based on the modal coordinate equations, to avoid the tedious mathematical manipulation.
该方法建立在模态方程的基础上，避免了繁杂的数学过程。
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