通过矩量法推导了阻抗矩阵和激励矩阵。
The impedance matrix and excitation matrix are derived by moment method.
由于基础动力阻抗矩阵是外荷载激励频率的函数，采用更多参数的一般集中参数模型与数值解答吻合精度更高。
The general lumped parameter model introduced in this paper offers more accurate results than the traditional method for dynamic stiffness matrix of foundation is frequency-dependent.
结果表明，多参考点互相关差分模型能够有效地进行环境激励下的模态识别，并且多项式特征值法比增广矩阵法所得结果更好。
It shows that the presented method can be used to identify modal parameters effectively under ambient excitation and that the polynomial eigenvalue method is superior to the augmented matrix method.
同时讨论了激励参数的确定方法，给出了一般的激励参数矩阵。
The method of determining incentive parameters is discussed and the general incentive parameter matrix is given out.
本文基于传递矩阵法(TMM)和虚拟边界元法(VBEM)，提出了一种求解在谐激励作用下二维结构-声耦合问题的直接法。
Based on transfer matrix method (TMM) and virtual boundary element method (VBEM), proposed a direct solution to 2-d sound-structure interaction problem under harmonic excitation is proposed.
目前测量相参激励下二端口网络输入阻抗常用的方法是，先用二端口网络分析仪测量网络的散射矩阵S，再将散射矩阵S转化为阻抗矩阵Z，最后求出不同相参激励下各端口的输入阻抗。
The common measurement of the two-port network'input impedance is to measure the S parameter, then Z parameter is calculated by the relation of S and Z, finally the input impedance is gained by the Z.
利用此种矩阵，计算了两种结构的消声器的传递损失，并在双传声器随机激励消声器试验台上进行了试验验证。
The sound tranfer loss of 2 kind of muffler structures are calculated, then tested and verified on the double sound transferrer random exciting exhaust muffler testing rig.
利用此种矩阵，计算了两种结构的消声器的传递损失，并在双传声器随机激励消声器试验台上进行了试验验证。
The sound tranfer loss of 2 kind of muffler structures are calculated, then tested and verified on the double sound transferrer random exciting exhaust muffler testing rig.
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