基于功率流分析的结构声优化研究
The structural-acoustic optimization based on power flow analysis
功率流有限元法是分析复杂结构振动能量密度和强度的有效方法。在文中,结合边界元声学方程,将法向功率流定义为目标函数进行结构噪声问题研究。在数值分析中,用遗传算法对一加肋板结构进行了优化计算分析。计算结果验证了该方法的可行性和有效性。
Power flow finite element method is a new method used for the prediction of the vibration energy density and intensity complex structures In the paper, combining the boundary element method (BEM) of structural-acoustic analysis, there have defined the normal power flow as the objection function in the noise analysis. In the end, the stiffener panel as example, the genetic algorithm is proposed as optimization strategy in the paper. The numerical results show that the optimization method is effective and feasible.
功率有限元法 / 功率流 / 结构-声辐射 / 优化 {{custom_keyword}} /
Power flow finite element method / Power flow / Structural-acoustic radiation / Optimization {{custom_keyword}} /
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