Results 31 to 40 of about 156,865 (313)

A soft sandwich structure enables voltage-induced actuation of liquid metal embedded elastomers

AIP Advances, 2020
Dispersing liquid metal droplets in a soft elastomer matrix yields a composite, called liquid metal embedded elastomer (LMEE), with less modified stiffness but noticeably increased relative permittivity.
Yin Wang, Geng Sun, Juancheng Yang, Ling Zhang, Jinxiong Zhou   +4 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Study of combustion flow field in a scramjet engine under inflow oscillation variations based on OpenFOAM

Case Studies in Thermal Engineering
In this study, a compressible supersonic numerical model was established based on the open-source computational fluid dynamics software OpenFOAM. The supersonic air inflow was set in sinusoidal variation and gas hydrogen was employed as fuel for the DLR ...
Changhao Wang, Zhe Fang, Xin He, Xing Zheng, Jing Yang, Rui Xue, Xiangrui Zou   +6 more
doaj   +1 more source

Analysis of Hysteretic Failure Mechanism of Cylindrical Shell Considering the Influence of Diameter-to-thickness Ratio

Taiyuan Ligong Daxue xuebao, 2023
In order to clarify the influence of diameter-to-thickness ratio on the hysteretic behavior of cylindrical shells, the hysteretic failure modes and energy dissipation capacity of cylindrical shells with different diameter-to-thickness ratios were studied
Xihui WANG, Tao WU, Yansheng ZHOU, Yongmei QIAN, Wei HUANG, Jinpei WANG   +5 more
doaj   +1 more source

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

Advanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source

High accuracy robust attitude tracking control application on quadrotor UAV with the prescribed performance

Advances in Mechanical Engineering, 2020
In this paper, a high accuracy attitude tracking control is presented for a quadrotor unmanned aerial vehicle (UAV) under the model uncertainties and external unpredictable disturbances by using a robust feedback control method.
Jingxin Dou, Qiansheng Tang, Bangchun Wen   +2 more
doaj   +1 more source

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

Advanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan, Manjusri Misra, Alexander Bardelcik, Stefano Gregori, Amar K. Mohanty   +4 more
wiley   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

Sieving Performance of Dual-Track Shale Shaker Based on DEM-MBD Coupling

Shiyou jixie
To improve the processing capacity of the shale shaker， meet the needs of different working conditions in the drilling process， and solve the problems of “screen blinding” and “mud runaway” occurring in the existing shale shaker， a “linear + variable ...
Lü Zhipeng, Duan Lingtong, Han Qingfeng, Yang Ling, Min Qingxin   +4 more
doaj   +1 more source

Vibration control systems [PDF]

Mechatronics, 2014
Editorial: Vibration is a phenomenon that affects systems such as bridges, buildings, towers, vehicles and aircraft. The protection of these systems against the harmful effects of vibration has become a major field of research in recent years. This special issue has a strong impact in many real-world systems, like vehicles and active suspension systems,
KARIMI, HAMID REZA, Gao, Huijun, Lam, James, Du, Haiping   +3 more
openaire   +2 more sources