Results 111 to 120 of about 66,209 (318)
Coupled analysis of two-dimensional acoustic and membrane vibration by concentrated mass model
Nihon Kikai Gakkai ronbunshu, 2016 Some acoustic problems such as interior noise analysis of vehicles need to be treated as structural-acoustic coupled problems because the coupling effect cannot be ignored. To solve such problems, the finite element method (FEM) has been used.
Ataru MATSUO +3 more
doaj +1 more source
From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices
Advanced Engineering Materials, EarlyView.Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle +3 more
wiley +1 more source
Axial and transverse coupled vibration law of deep-water riser with internal flow
, 2015 The present paper investigates the axial and transverse coupled vibration law of deep-water top-tensioned riser (TTR) under the combined effects of the internal fluid flow and external wave and current loads.
Zeng XH(曾晓辉) +8 more
core +1 more source
Advanced Engineering Materials, EarlyView.This article presents an experimental and numerical modal investigation of composite sandwich structures using surfboards as model systems. By comparing different core materials and reinforcement strategies, the study demonstrates how local stiffeners influence vibrational response and introduce characteristic modal features, highlighting modal ...
Brett Connellan +4 more
wiley +1 more source
Active vibration control of doubly-curved panels
, 2014 This thesis considers active control of the vibration of doubly-curved panels. Such panels are widely used in vehicles such as cars and aircraft, whose vibration is becoming more problematic as the weight of these vehicles is reduced to control their CO2
Nourzad, Delphine
core
Design of Hydraulic Induced Bidirectional Coupling Coiled Tubing Drag Reducer
Shiyou jixie, 2020 The low rigidity of the coiled tubing makes it easy to buckle during running or drilling, which leads to increased drag and even locking. To address the problem, based on the Coanda effect and the Carmen vortex effect, a hydraulically induced ...
Dou Yihua +3 more
doaj
Zhongguo Jianchuan Yanjiu, 2017 Several decades after the development of acoustic stealth technology for ships, there remains an urgent necessity to reduce low frequency structural and acoustic response due to excitation from the stern.
HUA Hongxing, YU Qiang
doaj +1 more source
Multimode Vibrational Couplings in Resonant Positron Annihilation
Physical Review Letters, 2011 The mechanisms for multimode vibrational couplings in resonant positron annihilation are not well understood. We show that these resonances can arise from positron-induced distortions of the potential energy surface (target response to the positron field).
Sergio, d'A Sanchez +2 more
openaire +2 more sources
Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8
Advanced Functional Materials, EarlyView.Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi +8 more
wiley +1 more source
Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties
Advanced Functional Materials, EarlyView.Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon +7 more
wiley +1 more source