Investigation on Harmonic Generation of Submerged Elastic Plate Using Wave Flume Experiments

摘要

The focus of this research work is towards the understanding of the hydraulic and hydrodynamic performance of submerged rigid and elastic plates when exposed to regular waves and quantifying the energy loss attributed to elasticity. For this purpose, four different plates with different flexural rigidities have been chosen for the wave flume experiments for studying the hydroelastic problem over a range of rigidity parameters. Furthermore, variation of pressures, reflection and transmission characteristics due to regular waves acting on flexible plate were investigated. Based on the systematic experimental study and investigation of the results it was found that the elasticity in the plate significantly improves the performance of the horizontal plate as a wave barrier in the lower B/L (Relative plate width) region where the rigid plate is not effective. The . enhancement in energy loss due to higher harmonic generation is about 20-30%.