Conference_programme: 20.1 - Indoor soundscaping
Lecture: PARTICLE SWARM OPTIMISATION FOR ACOUSTICS AND DAYLIGHT IN ATRIUMS
Author(s): Zhao Wei, Kang Jian, Xu Hongpeng
Summary:
Atrium forms influence acoustics and daylight in different ways. The aim of this paper is to optimize the acoustic and daylight environments in atriums based on particle swarm optimization (PSO). The method of numerical simulation has been used to obtain the general rules of acoustic and daylight variations. The results indicate that with an increase in the length of an atrium, the average sound pressure level (SPL) decreases logarithmically, the reverberation time (T30 in this paper) initially increases sharply and then the rate of increase declines, while the daylight factors (DF) increase continuously in a logarithmic manner. With an increase in the height of an atrium, the average SPL decreases logarithmically, the T30 increases gradually and then decreases slightly after a certain height, and the DFs decrease exponentially. The PSO application for environment optimization has been verified with a 5-8% error, combined with the fitness function of the relationship between SPL, T30 and DF. The design strategies have also been proposed based on the optimization results.
Corresponding author
Name: Dr Wei Zhao
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Country: China
