Study of Light Transmission and Noise Attenuation Properties of Light Active Glass Materials

Abstract

Lighting and noise belong to important environmental factors that have an influence on human psyche, concentration, labour protection, sleep quality and so on. This paper is focused on study of light transmission and noise attenuation properties of light active glass materials, which are applied as window and door panels in residential buildings. The light transmission through tested materials was evaluated by means of the transmission coefficient from the illuminance ratio method. The material ability to dampen noise was determined based on the sound pressure level attenuation during sound propagation through the light active glass materials. Different factors, which have an influence on the propagation of light and noise through the investigated glass materials, were evaluated in this work. Finally, the effect of the light transmission through the tested light active glass materials on the daylight quality in a living room was mathematically simulated using Wdls 5.0 software.

Deformation and Velocity Wave Propagation in a Thin Isotropic Plate

“…Displacement relations (23,24) and equations (25a, b) were used. The velocities were determined from relations (26). The analytical calculation was again performed in the MATLAB program.…”