Evaluation of a fully assembled armored vehicle hull-turret model using computational and experimental modal analyses

摘要

A three-dimensional finite element (FE) model of a multilayered hull-turret assembly of an armored vehicle was generated from major components such as the armored hull, turret and a 105 mm cannon models which were independently developed in PATRAN3 and assembled using rigid-link elements in the ADINA nonlinear dynamic FE code. Smaller components in the experimental vehicle were included as concentrated masses attached to specific sets of nodes in the hull corresponding to the actual locations of these components. Addition of these masses resulted in improved correlation between computational and experimental modal analyses.