Results 61 to 70 of about 361,673 (283)

Experimental analysis of damping across joints in metal plates

, 2006
In the current world of engineering, structural vibration problems continue impact the design and construction of a wide range of products. Amid the parameters that determine the dynamic behaviour of a structure the one that takes into account the ...
Cunningham, PR, Cunningham, Paul R., Walker, Scott, Aglietti, GS, Walker, SJI, Aglietti, Guglielmo S., Cunningham, P.R., Walker, Scott J.I., Aglietti, G.S.   +8 more
core   +1 more source

Comparison of theories for acoustic wave propagation in gassy marine sediments

, 2014
More than three decades ago, Anderson and Hampton [1, 2] (A&H) presented theories for wave propagation in gassy water, saturated sediments and gassy sediments in their two part review, which has been cited by many researchers in the geoacoustics and ...
Dogan, Hakan, Leighton, T.G., White, P.R.   +2 more
core   +1 more source

Intrinsic noise within viscous solids and impact on material exploration

Frontiers in Physics
This paper introduces the concept of the intrinsic-noise-atom (i.e., intrinsic-noise-element) and its applications. We propose a method to extract intrinsic noise generated within viscous solids and discuss its impact on material exploration and analysis.
Lin Fa, Lin Fa, Shuangshuang Meng, Huiting Yang, Jinyue Li, Yaming Hu, Kaiqiang Zhang, Yulin Xu, Meishan Zhao   +8 more
doaj   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

Transient Vibrational Behavior of Particles Inside Viscous Media and Its Applications

Cejing jishu
To explore the transient process of particle vibration inside viscous media and its spectral characteristics, and clarify the generation mechanism and application value of intrinsic noise, a damped oscillation spring oscillator model is adopted to derive
FA Lin, MENG Shuangshuang, CHEN Wenhui, SHI Peng, CUI Xinhao, CHEN Chao, YANG Huiting, QIU Jie, LI Jinyue, XU Yulin, ZHAO Meishan   +10 more
doaj   +1 more source

Breaking the Surface: Buoyant Metal–Polymer Open–Cell Hybrid Lattice Metamaterials

Advanced Materials, EarlyView.
Open‐cell metal–polymer lattice metamaterials that defy sinking. (a) Injection process of the polyurethane (PU) foam into the titanium (Ti‐6Al‐4V) hollow‐strut lattice creating the open‐cell Ti‐6Al‐4V+PU hybrid lattice, (b) flotation test of a hybrid lattice specimen, and (c) a digital representation and experimental validation of a marine buoy ...
Jordan Noronha, Joey Tallon, Raad Omar, Jason Dash, Andrey Molotnikov, Martin Leary, Milan Brandt, Ma Qian   +7 more
wiley   +1 more source

Descriptors to Dynamics: A Materials and Device Perspective on in‐Materio Physical Reservoir Computing for Neuromorphic Edge Intelligence

Advanced Materials, EarlyView.
Intrinsic material dynamics are harnessed as computational resources for neuromorphic in‐materio physical reservoir computing. Defects, ionic motion, interfaces, percolation, geometry, and biasing shape transient states that provide fading memory, nonlinearity, and high‐dimensional projection for simple readout. A descriptor‐to‐dynamics framework links
Kshitij RB Singh, Alif Syafiq Kamarol Zaman, Muzhen Xu, Yuki Usami, Saptarshi Das, Hirofumi Tanaka   +5 more
wiley   +1 more source

Dry Friction Interblade Damping by 3D FEM Modelling of Bladed Disk: HPC Calculations Compared with Experiment

Shock and Vibration, 2021
Interblade contacts and damping evaluation of the turbine bladed wheel with prestressed dry friction contacts are solved by the 3D finite element method with the surface-to-surface dry friction contact model.
Luděk Pešek, Pavel Šnábl, Vítězslav Bula   +2 more
doaj   +1 more source

Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies

Advanced Materials, EarlyView.
In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim, Haeseong Kim, Joo Hwan Ko, Gil Ju Lee, Dae‐Hyeong Kim, Young Min Song   +5 more
wiley   +1 more source

Behaviors of dynamic modulus and damping ratio of loess in Gannan region of Gansu Province

Yantu gongcheng xuebao, 2017
The dynamic constitutive relation of redeposited loess in Gannan region is investigated based on the dynamic triaxial tests. The model parameters are obtained, and the behaviors of dynamic shear modulus ratio and damping ratio are analyzed.
WANG Qian 1, LI Na 1, WANG Ping 1, HOU Peng-bo 2, ZHONG Xiu-mei 1, WANG Jun 1, WANG Hui-juan 1
doaj   +1 more source