Results 21 to 30 of about 2,376 (258)
Numerical comparisons of sandwich viscoelastic beam models
Dyna, 2019 Composite structures with elastic layers and viscoelastic core have been used as a passive damping treatment applied to reduce vibration amplitudes. In the design phase of this type of damping technique, many aspects ranging from computer modeling to ...
Waldir Neme Felippe +4 more
doaj +1 more source
Simulation of the Dynamic Response to Sinusoidal Excitation of the Elastic Porous Metal Mesh Damper
Shock and Vibration, 2021 As a promising device of vibration isolation for rocket engine turbopumps, turbine engines, and other kinds of rotordynamic applications, the elastic porous metal mesh damper (MMD) has drawn large attention from researchers.
Yichuan Shao +4 more
doaj +1 more source
Dynamic Stiffness and Damping Characteristics of a Shaft Damping Ring: A Combined Hyperelastic and Viscoelastic Constitutive Model [PDF]
Shock and Vibration, 2020 At higher velocities, the helicopter tail transmission system encounters notable difficulties due to excessive bending vibrations. The shaft damping ring installed on the shaft system was shown to effectively suppress the shaft system vibrations. In this paper, the dynamic stiffness and damping characteristics of polyurethane shaft damping rings were ...
Miaomiao Li +5 more
openaire +2 more sources
Viscoelastic Modeling of Extrudate Swell of Acrylonitrile- Butadiene-Styrene/Clay Nanocomposite
Applied Rheology, 2013 The aim of the present work was to predict the extrudate swelling behavior of organoclay containing Acrylonitrile- Butadiene-Styrene (ABS) nanocomposite.
Saadat Amir +3 more
doaj +1 more source
Wave Propagation through a Submerged Horizontal Plate at the Bottom of a Water Channel [PDF]
Computational Engineering and Physical Modeling, 2020 Vibrational study of fluid-structure interaction is one of the most widely used cases in engineering. In various industries, the effect of fluid on the structure and vice versa is necessary to investigate such as shipbuilding, ocean energy sources ...
Arman Asaeian +3 more
doaj +1 more source
Experimental and numerical evaluation of viscoelastic sandwich beams
REM: International Engineering JournalViscoelastic materials can dissipate a large amount of energy when subjected to cyclic shear deformations, but they have low bearing capacity. Therefore they are often employed as a damping layer in sandwich structures.
Waldir Neme Felippe Filho +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora +4 more
wiley +1 more source
New AI‐Assisted Approach for Expanding the Solution Space: Application to Lattice Structure Design
Advanced Engineering Materials, EarlyView.This work introduces an innovative framework for designing structured materials by ex panding the design space through reparameterization of qualitative variables into continuous structural descriptors. Combined with machine‐learning‐based prediction and multi‐objective optimization, the approach enables the discovery of novel lattice architectures ...
G. H. Gahimbare +5 more
wiley +1 more source
Journal of MathematicsMotivated by the mathematical modeling of heterogeneous viscoelastic media with nonstandard damping mechanisms, this paper investigates a Kirchhoff-type viscoelastic wave equation involving a variable-exponent nonlinear damping term, a logarithmic source,
Zülal Mısır +2 more
doaj +1 more source
Shock and Vibration, 2020 Traditional milling cutter bars are generally made up of metals and exhibit poor capacity of chatter suppression. This study proposes an anisotropic composites tapered cutter bar for increasing natural frequency and damping and finally achieves the goal ...
Yuhuan Zhang +3 more
doaj +1 more source