| 1. | The vehicle ride performance was simulated by using random spectral response methods
利用随机响应计算方法中频域法的频率响应函数法进行仿真计算。 |
| 2. | It is found that the high order frequency response functions of these systems will become single frequency variable functions
对于这些系统它们的高阶频率响应函数将成为单一的频率变量函数。 |
| 3. | The frequency response functions of relative displacement and absolute acceleration are derived under acting of harmonic ground excitation
推导了地面简谐运动作用下的加速度和位移的频率响应函数。 |
| 4. | When a series of different levels of sine excitation force is imposedon a non - linear testing structure , the response data vary with the force
非线性系统在不同力幅的正弦激励时，其频率响应函数将随力幅而变化。 |
| 5. | The structure finite element model updating algorithm directly based on the frequency response function which is widely concerned ever since the 90 ’ s is investigated
对90年代以来广受关注的直接基于频率响应函数的结构有限元模型修正算法进行探索研究。 |
| 6. | Based on the equation of general frequency response functions ( gfrf ) of the non - linear dynamic systems , in this paper , the difference is applied to detect the non - linear element positions in a complex structure
本文在研究非线性系统广义频率响应函数表达式的基础上，导出一种适用于复杂结构中非线性元件位置分布的判断方法。 |
| 7. | This method can not only analyze the system characteristic accurately , but also get the order and nonlinear frequency response function in every order , therefore realizes the nonlinear system identification of the case under study
这种方法能够更准确的分析非线性系统特性,得到该系统的非线性阶数及各阶非线性的频率响应函数,实现了对被试机箱的非线性系统辨识。 |
| 8. | First , the methods and procedures of general three orders nonlinear identification are summarized and the results are frequency functions described by basic and high order spectral density functions and frequency response functions
首先,系统总结了使用一般三阶非线性模型辨识的方法和步骤。得到的结果是用基本的和高阶的谱密度函数以及基本的和高阶的频率响应函数表示的频率函数。 |
| 9. | Information of system auto and cross spectrum , auto and cross correlation . coherent function , signal to noise ratio , frequency response and impulse response was established to help the study and arrangement of the module components
由力规及加速规两量测之时域讯号，经快速富利叶转换，计算其自频谱及互频谱，再经反富氏转换回时域之自相关及互相关函数、相通函数、讯噪比、频率响应函数、脉冲响应函数。 |
