Damping in cellular structures made from composite struts and walls with elastic and viscoelastic phases
Sign Up to like & getrecommendations! Published in 2020 at "Journal of The Mechanics and Physics of Solids"
DOI: 10.1016/j.jmps.2020.104106
Abstract: Abstract Emerging three-dimensional printing approaches enable cellular structures with composite walls or struts, creating new opportunities for architected materials with high specific stiffness and damping. This paper describes the damped dynamic response of composite walls… read more here.
Keywords: loss; viscoelastic phases; composite walls; elastic viscoelastic ... See more keywords
Determination of SEA loss factors by Monte Carlo Filtering
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2020.115348
Abstract: Abstract Actual use of Statistical Energy Analysis for complex systems requires the numerical or experimental determination of the SEA loss factors (E-SEA). This approach involves experimental and numerical issues that can lead to results inconsistent… read more here.
Keywords: monte carlo; loss factors; determination sea; sea loss ... See more keywords
Vibration damping materials with enhanced loss due to microstructural nonlinearity
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the Acoustical Society of America"
DOI: 10.1121/1.4987865
Abstract: One conventional approach to attenuating structure-borne waves or reduce the ringdown time of modes in structural elements is to attach damping layers or patches to vibrating components. Common patch and layer materials are specially formulated… read more here.
Keywords: host material; response; negative stiffness; loss factors ... See more keywords
Topology Optimization of Hard-Coating Thin Plate for Maximizing Modal Loss Factors
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DOI: 10.3390/coatings11070774
Abstract: At present, hard coating structures are widely studied as a new passive damping method. Generally, the hard coating material is completely covered on the surface of the thin-walled structure, but the local coverage cannot only… read more here.
Keywords: modal loss; method; topology; topology optimization ... See more keywords