Results 41 to 50 of about 4,153 (287)

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Modeling and experimental analysis of cutting force in longitudinal–torsional ultrasonic-assisted milling of titanium

Advances in Mechanical Engineering, 2019
This study proposed a novel milling technology assisted by longitudinal–torsional compound ultrasonic vibration to overcome the difficulties in the processing of Ti-alloy heterogeneous surfaces or molding surfaces.
Xiaobo Wang, Feng Jiao, Chongyang Zhao, Bo Zhao   +3 more
doaj   +1 more source

Experimental and Numerical Modal Analysis of Composite Sandwich Structures Using Surfboards as Model Systems

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, Luca Lomazzi, Mathis Mercier, Kara Stark, Marc in het Panhuis   +4 more
wiley   +1 more source

An analysis on strip vibration coupled with torsional vibration of main drive system of rolling mill [PDF]

, 2017
According to the movement mechanism of strip and rollers during the continuous rolling process, the main drive system of each stand was simplified to a single degree of freedom discrete model, and the strip was simplified to an axially moving Euler beam.
Guojun Du, Xiaoqiang Guo, Du, Guojun, Li, Rui, Guo, Xiaoqiang, Chongyi Gao, Rui Li, Gao, Chongyi   +7 more
core   +1 more source

Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective

Advanced Functional Materials, EarlyView.
Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk, Lukas Benecke, Chokri Cherif, Johannes Mersch   +3 more
wiley   +1 more source

Nonlocal Metaspire: A Scalable Elastic Material Platform With Decoupled Mechanical Modes

Advanced Materials, EarlyView.
Nonlocal Metaspire introduces sequential rotation to realize wider scalability in implementing complex nonlocal couplings in elastic metamaterials while suppressing unintended mode coupling. Numerical results clarify the underlying wave motions, demonstrate mode‐decoupled roton and maxon formation, and support a straightforward extension to higher ...
Seung Han Kim, Myung Hwan Bae, Ye Jeong Shin, Joo Hwan Oh   +3 more
wiley   +1 more source

ERROR CONSIDERATIONS FOR TURBINE-GENERATOR TORSIONAL VIBRATION MONITORING

, 2020
Turbine-generator torsional vibration is linked to electrical events in the power grid by the generator air-gap torque. Modern power systems are subject to gradual transformation by increasing flexibility demands and incorporation of renewable resources.
Jakl, Jan, Sven Kunkel, Liška, Jindřich, Künkel, Sven, Jindrich Liska, Jan Jakl   +5 more
core   +1 more source

Simulation and Experimental Research on the Longitudinal–Torsional Ultrasonic Cutting Process Characteristics of Aramid Honeycomb Materials

Applied Sciences
Aiming at the problems of large cutting force, easy honeycomb tearing, and deformation during the traditional cutting process of aramid honeycomb materials and an increase in cutting temperature during continuous processing, which may lead to vibration ...
Mingxing Zhang, Xinpeng Zhang, Linbin Li, Yuzhu Zhang, Liyuan Fang, Ting Meng, Xiaodong Wang   +6 more
doaj   +1 more source

Magnetic‐Field Modulation of Charge Transport in Non‐Fullerene Semiconductors for Enhanced Hydrogen Evolution

Advanced Materials Interfaces, EarlyView.
ABSTRACT This study demonstrates that weak magnetic fields (16–40 mT) increase the efficiency of the hydrogen evolution reaction (HER) in electrocatalysts based on non‐fullerene acceptor (NFA) derivatives IT‐4Cl and Y6. Electrochemical measurements reveal that the application of the magnetic field reduces the onset potential and increases the current ...
João Paulo Araujo Souza, Marlus Koehler, John Fredy Ricardo Marroquin, Jorlandio Francisco Felix, Thanh‐Tuân Bui, Paulo Eduardo Narcizo de Souza, Sebastião William da Silva, Luana Wouk   +7 more
wiley   +1 more source

Dynamic Characteristics Analysis of the Coupled Lateral-Torsional Vibration with Spur Gear System [PDF]

, 2015
A sixteen-degree-of-freedom (16-DOF) lumped parameter dynamic model taking into account the gravity, eccentricity, bearing clearance, transmission error, and coupled lateral-torsional vibration is established. Based on the dynamical equation, the dynamic
Shihua Zhou, Guiqiu Song, Zhaohui Ren, Bangchun Wen   +3 more
core   +1 more source