首先进行的腔体天线问题的变分公式和有限元法，边界元法（FEM-BEM）的数字技术，然后，为了计算这种天线的辐射和散射特性。和手性的不均匀性的影响是通过数值结果都指出
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hybrid fem-bem 有限元边界元混合方法
fem-bem coupling fembem耦合
fem与bem耦合 couple of fem and bem
couple of fem and bem fem与bem耦合
FEM and BEM 有限元与边界元
BEM-FEM 有限元法
coupled fem and bem 有限元与边界元耦合
coupling fem to bem 有限元与边界元耦合
bem-fem coupling 边界元──有限元耦合
Then, Acoustic-Structure sensitivity was evaluated with linking velocity sensitivity in FEM and Acoustic Sensitivity in BEM.
将两个灵敏度联合，得到声学-结构设计灵敏度。
On the one hand, such methods as FEM and BEM are based on the hypothesis of total continuity or equivalent continuity.
一方面是以有限元方法（FEM）为主的、基于完全连续或等效连续假说的连续性分析方法；
The acoustic analysis model for an automotive exhaust muffler is built, and the transmission loss of exhaust muffler is measured by test and also simulated by using both FEM and BEM.
建立某汽车排气消声器的声学分析模型，采用有限元法和边界元法对排气消声器的传递损失进行了仿真分析和试验测试。
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