Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/4618
Title: An Inclined Beam-Based Vibration Isolator Design to Attain Quasi-Zero-Stiffness Characteristics
Authors: Yadav, Vinod
Jena, Dibya Prakash
Pandey, Sharat
Keywords: finite element simulation
quasi-zero-stiffness
vibration isolator
Transmissibility
Issue Date: Jul-2024
Citation: International Conference on Recent Advances in Structural Dynamics (RASD), University of Southampton, UK, 1-3 July 2024
Abstract: A linear spring element combined with a nonlinear spring element has low dynamic stiffness and high static stiffness. In this work, a quasi-zero stiffness (QZS) vibration isolator based on positive stiffness and negative stiffness characteristic is explored. Using finite element simulation, the nonlinear stiffness of the inclined beam caused by the buckling effect and the linear positive stiffness of the circular arc beam is examined. The combination of these two beams delivered high static and low dynamic stiffness. The static characteristic is performed to obtain the operational displacement range. The parametric study illustrates the effect on force displacement characteristics due to variation in thickness of circular arc beam. The dynamic characteristic of the QZS isolator is studied under different damping ratio and excitation. Additionally, a stability study is carried out to identify the frequency response curve's unstable area. Combination of inclined and circular arc beam may be a good candidate to fulfil desired requirement to achieve a wide frequency range of isolation.
Description: Copyright belongs to proceeding publisher
URI: http://hdl.handle.net/2080/4618
Appears in Collections:Conference Papers

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