Open AccessDamping of layered porous composites and an application in machinery
Author(s) -
Zuzana Murčínková,
С. С. Радченко,
Gabriela Kuchtová
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1199/1/012068
Subject(s) - materials science , porosity , composite material , vibration , composite number , usable , layer (electronics) , porous medium , structural engineering , acoustics , engineering , computer science , physics , world wide web
The structured composite can involve the porous materials providing the important internal damping that is usable in mechanical engineering applications. The stiff base material is equipped by layer/s of softer porous material/s covered by constrained layer. Such layered structure is characterized by increased internal damping in vibration process. Paper analyses some either measured or simulated mechanical properties of designed layered porous composites. Novelty provided in paper is a specific application of structured composite for damping the high frequency vibrations in resonance frequency obtaining the beneficial results, e.g. 40-48% of maximum amplitude reduction.