噪声与振动控制2016，Vol.36Issue(6)：121-125,191,6.DOI:10.3969/j.issn.1006-1335.2016.06.024
楼内配变室砼地板结构振动声辐射分析
Structural Vibration and Sound Radiation Analysis of the Concrete Floor of Indoor Substations
摘要
Abstract
Operation of indoor substations (e.g. transformers) in buildings can induce adjacent concrete floor vibration, which can be transferred to the other portions of the building structure and cause the structure-borne sound radiation. In this paper, the structure-borne sound radiation induced by the indoor substations is studied. The concrete floor is simplified to an elastic plate with the four sides simply supported laid on the elastic foundation. The vibration displacement equations of the floor are derived and solved using the Hamilton equation and the modal superposition method. Accordingly, the structure-borne sound radiation is studied. It is noticed that the contribution of the vibration modes to the structure-borne sound radiation is not individual. Thus, the influence of the coupling terms of the structural vibration modes is considered for analyzing the radiation efficiency of the structure-borne sound and the sound power of the concrete floor.关键词
振动与波/变压器/混凝土地板/振动模态/结构声辐射/声功率Key words
vibration and wave/transformer/concrete floor/vibration mode/structure-borne sound radiation/sound power分类
数理科学引用本文复制引用
徐禄文,梁林,高芳清,吴祺..楼内配变室砼地板结构振动声辐射分析[J].噪声与振动控制,2016,36(6):121-125,191,6.基金项目
国网重庆电力公司科学技术研究项目(2014H01580) （2014H01580）
