Розробка пристроїв для верхнього краю звукозахисного бар’єру

Abstract

Starting from consideration of the practical requirements for a top edge device, which are good acoustical performance coupled with low cost and durability, a new device has been developed. The present paper is an attempt at proposing a novel procedure to derive the sound isolation parameters for noise barrier with the presence of an additional discrete elements as dynamic vibration absorbers (DVA). The main advantage of the present method is that it does not rely on strong assumptions about the model of the barrier plate. For acoustic calculations Timoshenko beam equivalent to sandwich is under discussion.