将植物叶脉脉序分布的形成机理应用到基于声辐射优化的薄板结构加强筋布局中，提出了一种加强筋仿中叶脉布局的声辐射优化算法。以结构在优化频带内应变能和应力的均值作为加强筋生长准则，设计灵敏度则反映了结构声辐射性能对设计参数变化的敏感程度。四边固支方板和矩形板的加强筋分布的声辐射优化算例证明了该方法的有效性。%Rib-stiffening is an efficient way to reduce the vibration noise of plate and shell structures .Currently ,most studies of stiffener layout in plate and shell structures aim at static or modal characters ,while relatively fewer studies direct at acoustic radiation optimization .The growth mechanism of venation is applied to the study of stiffener layout in plate and shell structures based on acoustic radiation optimization .The mean value of the strain energy and the shear stress within the frequency range of optimization are selected as the growth criterion of the stiffeners .The design sensitivity reflects the influence of the design pa-rameter variations on the structural-acoustic radiation properties .Optimization designs of completed clamped-support square plate and rectangular plate show the effectiveness of the method .
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