Abstract
Abstract An acoustic black hole (ABH) structure whose thickness varies according to a power law has received extensive attention in vibration reduction. However, ABH cannot be used as the primary bearing component in engineering, as the thickness reduction of ABH itself reduces its stiffness. In this article, the vibration characteristic of a beam with an acoustic black hole damping layer is studied and compared with a damping layer with uniform thickness. The beam and damping layer are based on the Timoshenko beam theory, using virtual springs to connect each other. The correctness of the proposed method is verified through the finite element method. The case studies show the proposed composite beam structure has lighter mass and lower vibration levels, compared with the beam attached with uniform damping layer.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call