多層・高次変形有限要素による積層制振材の振動・減衰特性解析 : 第1報,有限要素定式化と拘束型CFRP積層制振はりへの適用(機械力学,計測,自動制御)

概要

論文の詳細を見る
Multilayer (ML) plate/shell finite elements (FEs) based on a versatile higher-order-deformable (HOD) theory are developed for free vibration analysis and damping prediction of damped composite laminates. The developed FEs allow one to arrange through-the-thickness degrees of freedom (DOF) by specifying the degrees of multilayer dicretization (ML, or Equivalent-Single-Layer : ESL) and deformation assumptions (First-Order-Shear-Deforable: FOSD, or HOD). By comparing the numerical results of the present FEs wih each other and the available experimental results, numerical accuracies of four different types of rough-the-thickness DOF arrangement, that is, ESL/FOSD, ESL/HOD, ML/FOSD and ML/HOD, are investigated for free vibrations of CFRP laminates with constrained viscoelastic damping layers.
一般社団法人日本機械学会の論文
2004-04-25