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作 者:岳煜斐 李翔 何连华 冯海涛 张高明 尤修民 刘枫 Yue Yufei;Li Xiang;He Lianhua;Feng Haitao;Zhang Gaoming;You Xiumin;Liu Feng(China Academy of Building Research,Beijing 100013,China;Qingdao International Airport Group Co.Ltd,Qingdao 266108,China)
机构地区:[1]中国建筑科学研究院有限公司,北京100013 [2]青岛国际机场集团有限公司,山东青岛266108
出 处:《建筑科学》2023年第7期154-159,共6页Building Science
基 金:中国建筑科学研究院有限公司院士工作站科研基金项目(20220122330730021)。
摘 要:当高速列车从地下穿过大型机场航站楼时,其产生的噪声可能通过空气传播影响上部GTC(综合交通换乘中心)及航站楼等区域的乘车(机)环境及舒适性。高铁列车运行密度较低,采用传统的小时等效值会忽略列车通过时刻的噪声分布情况。本文以青岛胶东机场为例,采用气动噪声数值模拟与远场噪声传播模拟相结合的方式,模拟了列车通过GTC区域时某些时刻噪声的瞬时值。首先,通过数值模拟技术模拟了列车通过机场GTC下部隧道时车身的气动噪声分布情况,并总结以往研究成果得到轮轨噪声、集电系统噪声源值;然后,提出列车噪声源简化模型并加载到噪声远场传播软件里进行噪声远场传播计算,研究了济青高铁正线通过时GTC区域的噪声分布情况。最后讨论了相关噪声标准,评价了青岛胶东机场GTC区域的声环境。结果表明,高铁过站时,青岛胶东机场GTC区域空气声满足相关标准。When a high⁃speed train passes through a large airport terminal from underground,the noise generated may affect the boarding environment and the comfort of the upper important functional areas in GTC or terminal.The train operation density of high⁃speed railway is low,and the traditional hourly equivalent value will ignore the noise distribution at the time of train passing.Taking Qingdao Jiaodong Airport as an example,the numerical simulation technology is used to simulate the distribution of aerodynamic noise when the train passes through the tunnel under the airport,the previous research results is summarized,and the source values of wheel rail noise and collector system noise are obtained;a simplified model of train noise source is proposed and loaded into the software for noise far⁃field propagation calculation.The noise distribution of GTC is studied when the main line of Jiqing high⁃speed railway passes through its lower part.Finally,the related noise standards are discussed,and acoustic environment of GTC area of Qingdao Jiaodong airport is evaluated.The results show that the airborne sound in the GTC area meets the relevant standards.
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