摘要
根据《环境影响评价技术导则,声环境HJ2.4—2009》给出的室内声源等效室外声源声功率级的计算方法,结合面声源声衰减计算公式,推导了车间噪声向室外声传播衰减计算公式,建立了圆柱等效模型,解决了现有预测方法在室内声源空间坐标未知的情况下,预测工作无法进行的问题。仿真计算结果表明,该模型预测结果较准确。
According to the method of equalizing the sound power level of the indoor noise to the outdoor source presented in the Technical Guidelines for Noise Impact Assessment, the sound propagation loss formula about the indoor noise radiating to the outdoor combined with the plane source propagation loss formula is derived. The equivalent column model is constructed, which resolves the problem that the existing method could not be implemented when the source location of the indoor noise is unknown. The simulation results show that the presented model has a good performance.
出处
《电声技术》
2010年第5期71-74,88,共5页
Audio Engineering
关键词
噪声预测
工业噪声
圆柱等效模型
noise predication
industry noise
equivalent column model
