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ARTICLE
Experimental Investigation of Nonlinear Vibration Isolator with Fluidic Actuators (NLVIFA)
S. Sivakumar1,*, L. Jayakumar2
1 Department of Automobile Engineering, Arunai Engineering College, Tiruvannamalai, 606603, India
2 Department of Mechanical Engineering, Arunai Engineering College, Tiruvannamalai, 606603, India
* Corresponding Author: S. Sivakumar. Email: .
Sound & Vibration 2019, 53(6), 277-296. https://doi.org/10.32604/sv.2019.08099
Abstract
This paper elaborates a nonlinear fluidic low frequency vibration isolator designed with the characteristics of quasi-zero stiffness (QZS). The existing
model of QZS vibration isolator enhances amplitude of vibration and attenuating
vibration frequencies. This concern with displacement plays a vital role in the performance and instability of oblique spring setup reduces the isolator performance
in horizontal non-nominal loads, in this accordance; this paper associates double
acting hydraulic cylinder (fluidic actuators in short) in oblique and helical coil
spring. An approximate expression of unique analytical relationship between
the stiffness of vertical spring and bulk modulus of the fluid is derived for Quasi
– Zero Stiffness Non-Linear Vibration Isolator with Fluidic Actuators (NLVIFA in
short) system and the force transmissibility is formulated and damping ratio are
discussed for characteristic analysis. Modal analysis carried out and compared
with analytical results and an experimental prototype is developed and investigated. The performance of the NLVIFA reduces the external embarrassment more
at low frequencies and the series of experimental studies showing that the soft
nonlinearity causes limitation in the resonant frequency thereupon the isolation
will be enhanced and NLVIFA greatly outperform some other type of nonlinear
isolators.
Keywords
Cite This Article
Sivakumar, S., Jayakumar, L. (2019). Experimental Investigation of Nonlinear Vibration Isolator with Fluidic Actuators (NLVIFA).
Sound & Vibration, 53(6), 277–296.
Citations