噪声与振动控制Issue(5)：207-211,5.DOI:10.3969/j.issn.1006-1335.2015.05.044
空气能热水器低频噪声分析与控制
Analysis and Control of Low Frequency Noise of Air Source Water Heaters
乔晋红 1陈剑 1沈忠亮 1李家柱 1史韦意1
作者信息
- 1. 合肥工业大学 噪声振动工程研究所，合肥 230009
- 折叠
摘要
Abstract
A type of air source water heaters was studied. Referring to the technology in automotive NVH characteristics research, the frequency distribution of abnormal noise in the measurement data of an air source water heater prototype was analyzed to identify the main noise frequencies. The finite element model, acoustic finite element model and acoustic-structure coupled finite element model for the infrastructure of the air source water heater were built respectively to compute the modal frequencies. Through the comparative analysis of the three kinds of modal frequencies, the main cause of low-frequency noise of the heater was determined. According to the results of analysis, the structure of the air source water heater was optimized, improved and tested. The results show that compared with the prototype, the low-frequency noise of the optimized heater can be well controlled. This paper provides an effective method for the analysis and control of low-frequency noise of air source water heaters.关键词
声学/空气能热水器/低频噪声/声-固耦合/模态频率/结构优化Key words
acoustics/air source water heater/low frequency noise/acoustic-structure coupling/modal frequency/structure optimization分类
信息技术与安全科学引用本文复制引用
乔晋红,陈剑,沈忠亮,李家柱,史韦意..空气能热水器低频噪声分析与控制[J].噪声与振动控制,2015,(5):207-211,5.
