动力吸振器抑制空调管道振动研究

Research on Vibration Suppression of Air Conditioning Pipeline by Dynamic Vibration Absorber

针对空调管道振动过大的问题,对其受力进行了分析,并设计了一种具有双向抑振功能的管道动力吸振器用于振动抑制。利用Workbench对含动力吸振器的空调管道进行模态及谐响应分析。分析结果表明,造成空调管道振动过大的原因是其工作频率与第3阶共振频率相近,引发了共振;安装吸振器可有效降低管道的径向及横向振幅;排气管道中振幅较大的位置是吸振器抑振效果较好的位置。由分析结果可知,具有双向抑振功能的吸振器可为管道振动抑制提供一定帮助。

Aiming at the problem of excessive vibration of the air conditioning pipeline,the stress of the pipeline was analyzed,and a pipeline dynamic vibration absorber with two-way vibration suppression function was designed for vibration suppression.Using Workbench,the modal and harmonic response analysis of the air conditioning pipeline with dynamic vibration absorber were carried out.The analysis results show that the reason for the excessive vibration of the air conditioning pipeline is that its working frequency is close to the third resonance frequency,which causes resonance.The installation of vibration absorber can effectively reduce the radial and transverse amplitude of the pipeline.The position with larger amplitude in the exhaust pipe is the position with better vibration suppression effect of the vibration absorber.It can be concluded from the analysis results that the vibration absorber with two-way vibration suppression function can provide some help for pipeline vibration suppression.