A nonlinear mixed boundary element method is used here. And this method can be easily extended to off design conditions. The calculated results agreed very well with experimental data.
由于采用了非线性混合边界元，故本文所提出的方法精度高，简单易行，计算量小，可以较广泛地适用于偏离设计工况的运行情况，算例结果同实验值吻合很好。
The mixed method of boundary element and fractal finite element is adopted to solve the cracked structure-acoustic coupling problems.
应用分配形有限元和边界元相结合的方法于含裂纹的结构声相互作用问题。
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