电厂环境噪声模型的研究

为了开展电厂环境噪声预测及评价工作，提出了电厂环境噪声预测数学模型，研制出电算程序。此模型吸取了众多模型的优点，声源模式有点源、分布面源、体源和线源；传播方式分近场和远场；障碍物影响考虑了反射，衍射和衍射的反射。用此模型对耒阳电厂环境噪声进行计算，计算与实测结果表明，此模型精度高，软件实用、方便。

STUDY ON THE MODEL OF POWER PLANT ENVIRONMENTAL NOISE

mathematic model for prediction of environmental noise in power plant has been established and the calculation program also designed.This model consists of point source, scattering surface source, volume source and line source. The mode of propagation contains near field and far field. The impact of obstacles has been considered that it comprises reflection, diffraction and reflection of diffraction of sound. The results of calculation and measurement of Lei Yang Power Plant's environmental noise indicate that this model has high accuracy and the calculation program is simple and effective.