Results 1 to 10 of about 3,533 (260)

Design and mechanical properties testing of a new cross-helical popliteal artery stent

Medicine in Novel Technology and Devices, 2021
The popliteal artery has complex deformations such as axial shortening, bending, squeezing and twisting, as well as specific positions across the knee joint.
Yuanxing Dai, Hongrui Hu, Jiarong Wang, Ding Yuan, Tinghui Zheng   +4 more
doaj   +1 more source

Prediction Method and Validation Study of Tensile Performance of Reinforced Armor Layer in Marine Flexible Pipe/Cables

Journal of Marine Science and Engineering, 2022
Marine flexible pipe/cables, such as umbilicals, flexible pipes and cryogenic hoses, are widely adopted in ocean engineering. The reinforcing armor layer in these pipe/cables is the main component for bearing loads, which is a typical multi-layer ...
Hualin Wang, Zhixun Yang, Jun Yan, Gang Wang, Dongyan Shi, Baoshun Zhou, Yanchun Li   +6 more
doaj   +1 more source

A Feasibility Study of Transformer Winding Temperature and Strain Detection Based on Distributed Optical Fibre Sensors

Sensors, 2018
The temperature distribution and deformation of the transformer windings cannot be measured in a distributed manner by the traditional method and failure location cannot be performed.
Yunpeng Liu, Yuan Tian, Xiaozhou Fan, Yanan Bu, Peng He, Huan Li, Junyi Yin, Xiaojiang Zheng   +7 more
doaj   +1 more source

Stability of filament-wound hyperbolic flexible pipes under internal pressure based on non-geodesic winding

Scientific Reports, 2021
Filament-wound flexible pipes are widely used to transport fluid in pipeline systems, proved extremely useful in marine engineering. The hyperbolic flexible pipes have good vibration suppression performance, but they are easily deformed under internal ...
Guo-min Xu, Chang-geng Shuai
doaj   +1 more source

Research on Electrical Equipment Big Data Mobile Laboratory Based on Power Grid Cloud Data Management and Its Application

发电技术, 2023
Aiming at the problems of low efficiency, low level of intelligent operation and low level of data informatization application encountered in the current substation equipment test operation, a mobile laboratory platform based on grid cloud data ...
WU Hao, XU Xiao, PENG Zinan, GUO Ninghui, WANG Qifeng   +4 more
doaj   +1 more source

Numerical Investigations for Vibration and Deformation of Power Transformer Windings under Short-Circuit Condition

Energies, 2023
The analysis of the dynamic process of winding destabilization under sudden short-circuit conditions is of great importance to accurately assess the short-circuit resistance of power transformers. Based on magneto-solid coupling, an axisymmetric model of
Jiawei Wang, Yijing Xing, Xikui Ma, Zhiwei Zhao, Lihui Yang   +4 more
doaj   +1 more source

The Structure Analytical Research of Porous Permeable Wire Material

Management Systems in Production Engineering, 2016
The details of making technology of porous permeable material with use of wire are allowed to carry out the analytical research of structure and structural characteristics of wire winding body.
Jakubowski Andrzej, Crasto Renata
doaj   +1 more source

A new method for analyzing the impact of winding mechanical defects on the equivalent circuit parameters of power transformers

IET Generation, Transmission & Distribution, 2023
Condition monitoring of the power transformer winding and diagnose of the fault in its incipient stages can prevent the spread of defect, and as a result, the unexpected exit of the transformer.
Hadi Tarimoradi, Milad Askari
doaj   +1 more source

Air Core Transformer Winding Disk Deformation: A Precise Study on Mutual Inductance Variation and Its Influence on Frequency Response Spectrum

IEEE Access, 2018
It is well-known that the deformation of transformer winding can produce detectable changes to the frequency response spectrum compared with a referenced past measurement.
Mehdi Bagheri, Svyatoslav Nezhivenko, B. T. Phung, Trevor Blackburn   +3 more
doaj   +1 more source

Comprehensive Analysis of Winding Electromagnetic Force and Deformation During No-Load Closing and Short-Circuiting of Power Transformers

IEEE Access, 2021
When an electromagnetic transient occurs in a transformer, certain parts of the winding will be over stressed internally, which in severe cases will lead to the destruction of the winding insulation.
Chenchen Zhang, Wenqi Ge, Yi Xie, Yingying Li   +3 more
doaj   +1 more source