TY - JOUR
T1 - Theoretical and experimental investigation of a tunable vibration absorber with liquid elastic chamber
AU - Yao, Hongxiang
AU - Wang, Xing
AU - Hu, Zhan
AU - Zheng, Gangtie
PY - 2018/12/8
Y1 - 2018/12/8
N2 - This paper presents a novel Tunable Vibration Absorber with Liquid Elastic Chamber (TVA-LEC) for structural vibration suppression. It is formed by covering a rigid cylindrical chamber with two rubber membranes that act as springs and filling the chamber with incompressible liquid. Compared to conventional TVAs, the TVA-LEC is cost and weight efficient when it is integrated to the liquid network of a primary structure, such as oil pipelines inside aircraft wings, by utilizing the existing liquid as the mass of the TVA. A single-degree-of-freedom (SDOF) analytical model is developed for the proposed device with discussions on the tuning of its natural frequency. It is revealed that the natural frequency of the TVA-LEC can be tuned by regulating the liquid mass. The analytical model is validated by experimental tests in which the TVA-LEC is installed on a cantilever beam and the liquid mass is adjusted. The natural frequency of the TVA-LEC device shifts from 16.99 Hz to 21.99 Hz by adding liquid, which agrees well with the analytical prediction.
AB - This paper presents a novel Tunable Vibration Absorber with Liquid Elastic Chamber (TVA-LEC) for structural vibration suppression. It is formed by covering a rigid cylindrical chamber with two rubber membranes that act as springs and filling the chamber with incompressible liquid. Compared to conventional TVAs, the TVA-LEC is cost and weight efficient when it is integrated to the liquid network of a primary structure, such as oil pipelines inside aircraft wings, by utilizing the existing liquid as the mass of the TVA. A single-degree-of-freedom (SDOF) analytical model is developed for the proposed device with discussions on the tuning of its natural frequency. It is revealed that the natural frequency of the TVA-LEC can be tuned by regulating the liquid mass. The analytical model is validated by experimental tests in which the TVA-LEC is installed on a cantilever beam and the liquid mass is adjusted. The natural frequency of the TVA-LEC device shifts from 16.99 Hz to 21.99 Hz by adding liquid, which agrees well with the analytical prediction.
KW - Liquid elastic chamber
KW - Tunable vibration absorber
UR - http://www.scopus.com/inward/record.url?scp=85053755610&partnerID=8YFLogxK
U2 - 10.1016/j.jsv.2018.08.042
DO - 10.1016/j.jsv.2018.08.042
M3 - Article (Academic Journal)
AN - SCOPUS:85053755610
SN - 0022-460X
VL - 436
SP - 15
EP - 31
JO - Journal of Sound and Vibration
JF - Journal of Sound and Vibration
ER -