6533b859fe1ef96bd12b8966
RESEARCH PRODUCT
Optimization of Passive Constrained Layer Damping (Pcld) Treatments for Vibration Reduction
Ali El-hafidiCintya De La Penna HerreroBruno Martinsubject
[SPI]Engineering Sciences [physics][SPI] Engineering Sciences [physics]equivalent single layer plate modelplategenetic algorithmRayleigh-Ritzvibrationpassive constrained layer dampingComputingMilieux_MISCELLANEOUSdescription
An efficient method to reduce the frequency averaged transverse vibration level of aplate by optimizing the position of attached passive constrained layer damping PCLD is presented.This method uses a multilayer anisotropic plate model which is an equivalent single layer platemodel (ESL) where transverse shear stresses and displacements are continuous at each layer’sinterfaces. Hence, for a laminate composed of an arbitrary number of layers, all the quantities arerelated to those of the first layer. The optimization process is based on the use of the ESL platemodel combined with the genetic algorithm (GA) and Latin Hypercube Sampling (LHS) algorithmimplemented in a Rayleigh-Ritz resolution program. The convergence acceleration of the methodis achieved thanks to the combination of genetic algorithm and the use of the ESL plate modelinstead of a three-dimensional mesh that requires more computing resource.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-01-01 |