Results 61 to 70 of about 288,428 (355)

Numerical analysis of propeller-excited plate vibrations

AIP Advances, 2021
Intense vibrations excited by a propeller worsen the structural reliability of a ship. In this study, a ship hull is modeled as a simple rectangular plate to study propeller excitation vibrations. The interaction between a rectangular plate and propeller
Weipeng Zhang, Xiaoshen Ning, Hang Guo, Xu Wang, Fugeng Li, Shili Sun   +5 more
doaj   +1 more source

Structural analysis considerations for wind turbine blades [PDF]

, 1979
Approaches to the structural analysis of wind turbine blade designs are reviewed. Specifications and materials data are discussed along with the analysis of vibrations, loads, stresses, and failure ...
Spera, D. A.
core   +1 more source

Assessment of dynamic and long-term performance of an innovative multi-story timber building via structural monitoring and dynamic testing [PDF]

, 2012
Peer ...
Desgeorges, Yohann, Gaul, Andrew, Jager, Simon, Morris, Hugh, Omenzetter, Piotr, Worth, Margaret   +5 more
core   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Anisotropic structural dynamics of monolayer crystals revealed by femtosecond surface x-ray scattering

, 2018
X-ray scattering is one of the primary tools to determine crystallographic configuration with atomic accuracy. However, the measurement of ultrafast structural dynamics in monolayer crystals remains a long-standing challenge due to a significant ...
Clark, Genevieve, Darancet, Pierre, Ernst, Friederike, Glownia, James M., Heinz, Tony F., Kalia, Rajiv K., Kozina, Michael E., Krishnamoorthy, Aravind, Kumazoe, Hiroyuki, Lindenberg, Aaron M., Mannebach, Ehren M., Nakano, Aiichiro, Nelson, Silke, Nyby, Clara, Sadasivam, Sridhar, Seyler, Kyle L., Shimojo, Fuyuki, Song, Sanghoon, Tung, I-Cheng, Vashishta, Priya, Wen, Haidan, Xu, Xiaodong, Zhang, Qi, Zhou, Hua, Zhu, Diling   +24 more
core   +1 more source

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

Advanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu, Timon Steinhoff, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Christian Klose, Ludger Overmeyer, Hans‐Jürgen Maier, Nina Merkert   +8 more
wiley   +1 more source

Numerical Investigation on the Mechanism of Solid Rocket Motor Instability Induced by Differences between On-Ground and In-Flight Conditions

Aerospace
A solid rocket motor (SRM) with a high aspect ratio that performs normally during ground tests may experience instability during flight. To address this issue, this study employs the pulse triggering method and the numerical approach of two-way fluid ...
Ge Wang, Chengke Li, Weiqiang Pu, Bocheng Zhou, Haiwei Yang, Zenan Yang   +5 more
doaj   +1 more source

Raman Spectroscopic Identification of Oxide Phases in a Corroded MgO–Steel Composite Anode Used in Aluminum Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler, Serhii Yaroshevskyi, Alexander Adamczyk, Mahnaz Mehdizadehlima, Julia Richter, Cameliu Himcinschi, David Rafaja, Alexandros Charitos, Christos G. Aneziris, Jens Kortus   +9 more
wiley   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Experimental Measurement of Picometer Scale Spontaneous Vibrations in a Precision Deployable Boom under Thermal Loading

Shock and Vibration, 2007
This paper reports observations and analysis of picometer scale spontaneous vibrations in a precision deployable boom under thermal loading. The structural test article is a deployable boom previously flown in space.
Mark J. Silver, Lee D. Peterson, Lisa M.R. Hardaway   +2 more
doaj   +1 more source