Results 141 to 150 of about 85,518 (307)

Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello, Joachim Gussone, Suzana G. Fries, Marcus Rackel, Andreas Stark, Norbert Schell, Jan Haubrich, Guillermo Requena   +7 more
wiley   +1 more source

Probabilistic Assessment Method of Available Inertia for Wind Turbines Considering Rotational Speed Randomness

Energies
The large-scale integration of wind power into the grid has led to a reduction in system inertia, threatening frequency stability. There is an urgent need to accurately assess the inertia support capability of wind turbines, providing a theoretical basis
Junchao Ma, Jianing Liu, Zhen He, Chenxu Wang, Congnan Qiu, Yilei Gu, Xing Pan   +6 more
doaj   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Light-Controlled Rotational Speed of an Acoustically Levitating Photomobile Polymer Film. [PDF]

Materials (Basel), 2023
Lucchetta DE, Castellini P, Martarelli M, Scalise L, Pandarese G, Riminesi C, Singh G, Di Donato A, Francescangeli O, Castagna R.   +9 more
europepmc   +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

Experimental investigation of an enhancement system to improve wind turbines power generation

International Journal of Thermofluids
Wind speeds, high or low, have a detrimental effect on the rated turbine’s rotational speed in wind energy systems. This study proposes an electromagnetic torque modulation enhancement system that consists of a brushless motor mounted on the turbine’s ...
Ammar Alkhalidi, Abdulnaser Bdiwi, Mohamad K. Khawaja   +2 more
doaj   +1 more source

Grain Refinement During Severe Plastic Deformation and Similitude of Subgrain Formation: A Molecular Dynamics Study

Advanced Engineering Materials, EarlyView.
Molecular dynamics is used to investigate structure refinement during severe plastic deformation. The results show similitude with experimental data. Molecular dynamics simulations of severe plastic deformation of monocrystalline and polycrystalline samples by multiaxial compression of aluminum are carried out.
Roberto B. Figueiredo
wiley   +1 more source

Research on the mechanism of high-efficiency milling cement plugs with low weight on bit and high rotational speed

Journal of Petroleum Exploration and Production Technology
With the continuous development of milling technology and the increasing number of slim hole plugging removal operations worldwide, how to guide operators to select reasonable working parameters to achieve efficient plugging removal has become a problem ...
Zirui Li, Feng Guan, Feng Wan, Haifeng Tian, Wang Liu   +4 more
doaj   +1 more source

In-Cylinder Pressure Estimation from Rotational Speed Measurements via Extended Kalman Filter. [PDF]

Sensors (Basel), 2023
Quartullo R, Garulli A, Giannitrapani A, Minamino R, Vichi G.   +4 more
europepmc   +1 more source

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş, Mehmet Emin Demir, Sercan Özpınar   +2 more
wiley   +1 more source