摘要
研究了新风换气机的动态特性,以改善新风设备工作时的振动噪声,对XHBX-D2TH型号的新风换气机进行了试验模态研究,得到了新风机结构的8阶模态固有频率、阻尼比和模态振型等参数,为进行有限元模态仿真分析,振动、噪声分析与结构优化创造了条件。
In order to reduce the vibration and noise during the work of the fresh air equipment, the dynamic character of the fresh air ventilator is investigated. In this paper, the experimental modal analysis of the model XHBX- D2TH fresh air ventilator is executed, and the natural frequency, damping ratio and vibration mode of the eight-or- der mode is obtained. These model parameters provide the basis for the finite element modal simulation, vibration, noise analysis and optimization of the structure.
出处
《北京工业职业技术学院学报》
2014年第4期7-11,共5页
Journal of Beijing Polytechnic College
基金
北京市教委2013年度面上项目(KM201310853003)
北京市2014年教师队伍建设青年英才计划项目(PXM2014-014225-000010)
关键词
模态分析
模态试验
新风机
modal analysis
model experimental
fresh air ventilator
DASP
