摘要
在现有屋顶风机隔振设计的基础上,补充分析了屋顶风机的安装及与楼板共振问题,克服了原安装中风机与泛水的刚性连接以及弹性垫的隔振性能得不到发挥的情况。同时,理论计算了楼板的自振频率,并将楼板自振频率与风机激振频率进行了比较,在举例范围内,风机与楼板不会激起共振现象。此研究是对现有屋顶风机隔振设计的一种补充,为屋顶风机的安装以及振动噪声控制提供更为全面的参考依据。
Based on the existing vibration isolation design of roof fan,the questions of installation of roof fan and resonance between roof fan and floor are supplementarily analyzed in this paper.In this study,the rigid connection between the fan and the flashing in the original installation and the situation that the vibration isolation performance of the elastic pad cannot be demonstrated are overcome.At the same time,the natural frequency of the floor is calculated theoretically;moreover,the natural frequency of roof floor is compared with the excitation frequency of fan.Within the scope of examples,the fan and the floor do not cause resonance.This study is a supplement to the existing vibration isolation design of roof fan,and a more comprehensive reference for the installation and vibration and noise control of roof fan is provided.
作者
熊志远
吴瑞
赵娜
赵阳
郭建军
邬玉斌
XIONG Zhi-yuan;WURui;ZHAO Na;ZHAO Yang;GUO Jian-jun;WU Yu-bin(Institute of Urban Safety and Environmental Science,Beijing Academy of Science and Technology,Beijing 100054,China)
出处
《机械研究与应用》
2022年第3期173-175,共3页
Mechanical Research & Application
基金
北京市科学技术研究院青年学者计划项目:建筑基础弹性垫对地铁环境振动的控制效果、机理及评估方法研究(编号:YS202102)。
关键词
屋顶风机
安装
共振
屋顶楼板
振动与噪声控制
roof fan
installation
resonance
roof floor
vibration and noise control
