说明了剩余导纳展开式在模态综合自由度减缩中的应用。
Finally, an explanation was given about the application of the expansion series of residual admittance in reduction of degrees of freedom in modal synthesis.
在此基础上，介绍了由频响数据识别复模态参数的导纳圆拟合法。
On this basis, the mobility circle fitting method for identifying the complex modal parameters from frequency response data is discussed.
由导纳圆拟合法识别出了桥梁的模态参数。
The latter identified the modal parameters of the bridge by admittance circle fitting method.
说明了剩余导纳展开式在模态综合自由度减缩中的应用。
Finally, an explanation was given about the application of the expansion series of residual admittance in reduction o...
运用ANSYS对车轮进行了模态分析，求得车轮导纳以及钢轨和车轮振动速度的功率谱。
The modal analysis of the wheel is done using the software ANSYS. Calculate the wheel mobility and the vibration velocity spectrum of the wheel and rail is calculated.
讨论了阻抗参数与导纳参数，复模态参数与实模态参数的转比关系；
Then, the transformation equations relating physical parameters with admittance parameters and those relating complex modal parameters with real ones were determined.
采用导纳法测试了薄铝板的模态密度，并对其测试结果进行了附加质量修正。
Also this paper has tested the modal density of thin aluminum using point admittance, and discussed the influence of mass correction.
为了预测车轮辐射的滚动噪声，本文建立了车轮有限元模型，对车轮进行了模态分析，并运用模态叠加方法计算了车轮的径向导纳。
To predict the wheel's noise radiation, a FEM analysis model of the wheel is developed. Based on the modal superposition method, the radial receptance of the wheel is calculated.
为了预测车轮辐射的滚动噪声，本文建立了车轮有限元模型，对车轮进行了模态分析，并运用模态叠加方法计算了车轮的径向导纳。
To predict the wheel's noise radiation, a FEM analysis model of the wheel is developed. Based on the modal superposition method, the radial receptance of the wheel is calculated.
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