Monitoring of non-structural elements is not usually implemented, despite the seismic
vulnerability of these components and the significant cost associated with their replacement …

Previous study has shown that synchronization of phases between impacts and the cyclic
load component should be avoided to improve the effectiveness of operational modal …

Due to the occurrence of abnormal vibration of reciprocating compressor inlet pipelines
during the commissioning of a booster station, the cause of severe vibration problem was …

The dynamic characteristics of rubber isolation pad (abbreviated as RIP) after service under
the high temperature thermal oxygen aging and the variable preloads have preload …

This paper studies how to enhance frequency response function (FRF) estimation in the
presence of harmonic disturbances during operational modal testing. A novel technique …

In this paper, we proposed a spectral interrogation scheme for the detection of small
wavelength shift of fiber Bragg grating (FBG) accelerometer in a vibration test. Our findings …

The influence mechanism of thermal oxygen aging on the dynamic characteristic of the
rubber isolation pad (RIP) is usually ignored in studies. However, the ambient temperature …

为了降低空调运行过程中制冷压缩机所产生的噪声, 采用在制冷压缩机排气管设置消声器的方法
. 建立了消声器内部制冷剂的有限元模型, 利用声学分析软件Virtual Lab Acoustics …

The load excitation of the multi-connected air conditioning compressor is the major source of
vibration in the entire air conditioning pipeline system, which imposes a direct impact on the …

Dynamic load of compressors is of great concern to designers of refrigeration products since
pipes and sheet metals are easy to be excited, leading to noise or fatigue failure. The …