Abstract This paper presents a multiobjective optimization approach to minimize weight and maximize modal damping in laminated composite panels with Constrained Layer Damping (CLD) treatments. The design variables are the number and position of the CLD patch treatments on the surface of the laminated plate. The Direct MultiSearch (DMS) solver for multiobjective optimization problems is used in this work. DMS is a solver which does not use any derivatives of the objective functions. A previously developed finite element model for sandwich plates with viscoelastic core and anisotropic laminated face layers is adapted to model the plate with the CLD treatments. Applications for L-shaped and T-shaped plates are presented and both trade-off Pareto optimal fronts and the respective treatment configurations are obtained and the results are analyzed and discussed.

中文翻译：

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使用约束层阻尼的复合板结构减振多目标优化

摘要 本文提出了一种多目标优化方法，通过约束层阻尼 (CLD) 处理使层压复合板的重量最小化和模态阻尼最大化。设计变量是层压板表面上 CLD 贴片处理的数量和位置。在这项工作中使用了用于多目标优化问题的 Direct MultiSearch (DMS) 求解器。DMS 是一种求解器，它不使用目标函数的任何导数。先前为具有粘弹性芯和各向异性层压面层的夹层板开发的有限元模型适用于对具有 CLD 处理的板进行建模。