Results 61 to 70 of about 8,338 (263)

External and Internal Cracking Caused by Heat Treatment in Laser Powder Bed Fusion‐Fabricated Inconel 738LC Components

Advanced Engineering Materials, EarlyView.
Manufacturing problems such as heat treatment‐induced cracking hinder the widespread application of the laser powder bed fusion (LPBF) process to superalloys. In this study, cracks in the LPBF components of Inconel 738LC superalloy are characterized after heat treatment at various temperature ranges, revealing two distinct cracking behaviors.
Kosuke Kuwabara, Masahiro Kusano, Ayako Ikeda, Toshio Osada, Makoto Watanabe   +4 more
wiley   +1 more source

Auxiliary Inverter Over-current Fault Analysis in Integrated Traction Converter System

机车电传动, 2018
Auxiliary inverter current detection and protection principle of integrated traction converter system for AC drive electrical locomotive was introduced.
REN Xiaodong, PENG Jiangshan, HE Qin, PENG Junhua   +3 more
doaj  

Quasi-single phase permanent fault identification method and reclosing strategy based on multi-level confidence rules

International Journal of Electrical Power & Energy Systems
As global temperatures rise, the frequency of lightning increases, making lightning one of the principal threats to power-system security. Field incidents indicate that, within the automatic reclosing time window, multiple-stroke lightning can exhibit ...
Hongchun Shu, Baisong Liu, Weijie Lou, Yutao Tang, Haoming Liu, Yiming Han, Yue Dai, Ying Cao   +7 more
doaj   +1 more source

Research on the Fault Coefficient in Complex Electrical Engineering

Applied Sciences, 2015
Fault detection and isolation in a complex system are research hotspots and frontier problems in the reliability engineering field. Fault identification can be regarded as a procedure of excavating key characteristics from massive failure data, then ...
Yi Sun, Yagang Zhang, Yinding Wang
doaj   +1 more source

Multilayer Self‐Limiting Electrospray Deposition via Stepped Voltage Bias

Advanced Engineering Materials, EarlyView.
Self‐limiting electrospray deposition (SLED) uses a high voltage to generate and deposit a charged payload on a target surface. The coating retains its charge, repelling newly arriving material. SLED thickness can be decreased by applying a secondary bias to the target.
Madhuri Deb, S. Rahman Pejman, Alexander Jakimowicz, Jonathan P. Singer   +3 more
wiley   +1 more source

The current research progress and prospect of series arc fault detection technology

Diance yu yibiao
Arc fault, especially series arc fault, has been the primary cause of electrical fire, which is intermittent, hidden, random and uncertain, difficult to detect, and serious harm.
ZHOU Rui, LIU Jianghong, CONG Beihua
doaj   +1 more source

Integration of OpenCV‐Based Microscopic Adhesive Volume Measurement Into a Pyiron Workflow for Automated Data Analysis

Advanced Engineering Materials, EarlyView.
Residual adhesive after electrode loading in adhesive‐assisted resistance spot welding is quantified through a traceable experimental‐to‐digital workflow. Chromatic confocal topography provides calibrated surface‐height data, while OpenCV detects the electrode imprint and integrates adhesive height into comparable volume metrics.
Sung‐Min Wi, Jiangdong Zhao
wiley   +1 more source

Research on Cross-Circuitry Fault Identification Method for AC/DC Transmission System Based on Blind Signal Separation Algorithm

Energies
The AC/DC transmission system is an important component of the power system, and the cross-circuitry Fault diagnosis of the AC/DC transmission system plays an important role in ensuring the normal operation of power equipment and personal safety.
Yan Tao, Xiangping Kong, Chenqing Wang, Junchao Zheng, Zijun Bin, Jinjiao Lin, Sudi Xu   +6 more
doaj   +1 more source

The Influence of Field‐Assisted Sintering Technology (FAST) Temperature and Cooling Rate on the Microstructural Evolution in Gamma‐Titanium Aluminide Alloy GE4822

Advanced Engineering Materials, EarlyView.
Controlling the Field Assisted Sintering Technology (FAST) parameters, dwell temperature and cooling rate, significantly influences the microstructural evolution in titanium aluminide GE4822. Significant γ‐lamellar colonies develop only upon cooling through the α‐transus.
Jack Krohn, James Pepper, Martin Jackson
wiley   +1 more source

Smart Electric Fault Detection and Protection

International Research Journal on Advanced Engineering and Management (IRJAEM)
Power transformers are critical components in electricity distribution networks, and their failure can cause blackouts and hazards to public safety. This paper proposes a low-cost real-time fault detection and protection device that continuously monitors transformer voltage and current against a nominal 230 V reference.
null Mrs. Namita Kothali, null Ms. Pournima R. Patil, null Mr. Vitrag Ankalkhope, null Mr. Prajwal Karajange   +3 more
openaire   +1 more source