Results 71 to 80 of about 277,340 (310)

Local Buckling-Induced Forming Method to Produce Metal Bellows

Chinese Journal of Mechanical Engineering, 2023
A novel buckling-induced forming method is proposed to produce metal bellows. The tube billet is firstly treated by local heating and cooling, and the axial loading is applied on both ends of the tube, then the buckling occurs at the designated position ...
Tianyin Zhang, Dongqing Li, Tianjiao Xu, Yongfeng Sui, Xianhong Han   +4 more
doaj   +1 more source

Additively Manufactured Porous Ceramics as Tunable Dielectrics for Passive Temperature Sensing

Advanced Materials Technologies, EarlyView.
Porous ceramic lattices, 3D‐printed from a multicomponent oxide ink, are integrated with LC resonators for passive wireless temperature sensing. By tuning porosity, the dielectric properties and RF response are engineered to produce distinct resonant frequency shifts with temperature. The results establish a structure‐driven approach to customizing the
Sogol Heidarishahrivar, Aminul Islam, Chang Woo Gal, Insup Kim, Yeong‐Jin Choi, Woo Soo Kim   +5 more
wiley   +1 more source

Investigations on microstructural and mechanical properties of long-term thermally exposed superalloy Mar-M247 after rejuvenation heat treatment

Journal of Materials Research and Technology
Mar-M247 is a polycrystalline nickel-based superalloy utilized for blades in heavy-duty gas turbines. However, the microstructure degradation of the alloy during long-term aging includes coarsening of the γ′ phase and precipitation of TCP phase, which ...
Song Wu, Lexin Yang, Yubing Pei, Fenling Wang, Changshuai Wang, Chao Luo, Bin Zhou, Xiufang Gong   +7 more
doaj   +1 more source

Integrated Optimal Design of a Passive Wind Turbine System: An Experimental Validation [PDF]

, 2010
This work presents design and experimentation of a full passive wind turbine system without active electronic part(power and control). The efficiency of such device can be obtained only if the system design parameters are mutually adapted through an ...
Espanet, Christophe, Roboam, Xavier, Sareni, Bruno, Tran, Duc Hoan   +3 more
core   +4 more sources

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Fault Detection and Diagnosis for Gas Turbines Based on a Kernelized Information Entropy Model

The Scientific World Journal, 2014
Gas turbines are considered as one kind of the most important devices in power engineering and have been widely used in power generation, airplanes, and naval ships and also in oil drilling platforms.
Weiying Wang, Zhiqiang Xu, Rui Tang, Shuying Li, Wei Wu   +4 more
doaj   +1 more source

Offshore Turbine Wake Power Losses: Is Turbine Separation Significant?

Energy Procedia, 2017
Abstract This paper presents the results of a parametric study of wind turbine wake effects in a hypothetical offshore wind farm with varying turbine separation using a Computational Fluid Dynamics (CFD) model. Results are analyzed from a simulated 40 turbine farm with 60 layout options, 4 wind speeds and 10° directional bins.
P. Argyle, S.J. Watson
openaire   +1 more source

Mastering Complexity toward High‐Performance Multi‐Principal Element Alloy‐Based Films and Coatings: A Review on Microstructural Regulation and Property Optimization

Advanced Science, EarlyView.
This review provides a comprehensive exploration of microstructure regulation strategies for multi‐principal element alloy‐based films and coatings, with a focus on the interplay between elemental composition, nanoscale architecture, heterostructures and interfacial engineering in tailoring their properties and functions. A systematic analysis of their
Jiaming Cao, Jiayi Sun, Heqing Li, Zhiqiang Wu, Xianghai An   +4 more
wiley   +1 more source

Dynamic Analysis for a Disk-Inertial-Asymmetry Rotor System

Shock and Vibration
In this paper, the dynamic characteristics of a rotor with disk inertial asymmetry are investigated. A rotor model is developed using the Lagrange method, and a modal analysis technique based on Hill’s determinant is derived.
Di Liu, Jie Hong, Yinli Feng
doaj   +1 more source

Thermodynamic Analysis of a Gas Turbine Power Plant Modelled with an Evaporative Cooler [PDF]

, 2012
Performance of a gas turbine is mainly depends on the inlet air temperature. The power output of a gas turbine depends on the flow of mass through it.
Kilanko, O. O, Oyedepo, Sunday Olayinka
core