摘要
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 predicting vibration energy density and intensity of complex structures.Here,combining the boundary element method(BEM)of structural-acoustic analysis,the power flow in normal direction was defined as an objective function in noise analysis of structures.Then,a stiffener panel was taken as an example,the genetic algorithm was proposed as an optimization strategy.The numerical results showed that the proposed optimization method is effective and feasible.
出处
《振动与冲击》
EI
CSCD
北大核心
2010年第10期191-194,共4页
Journal of Vibration and Shock
关键词
功率有限元法
功率流
结构-声辐射
优化
power flow finite element method
power flow
structural-acoustic radiation
optimization
