Advanced Numerical Modelling Techniques Applied to Submarine Structures Research and Development, Design, Build, and Refit and Repair

2014 ◽  
Author(s):  
D Graham ◽  
◽  
P Murphy ◽  
J Hobson ◽  
S Cross ◽  
...  
Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2798
Author(s):  
Konstanty M. Gawrylczyk ◽  
Szymon Banaszak

The paper provides a review of the modelling techniques used to simulate the frequency response of transformer windings. The aim of the research and development of modelling methods was to analyze the influence of deformations and faults in the windings on the changes in the frequency response. All described methods are given with examples of the modelling results performed by the authors of this paper and from literature sources. The research is prefaced with a thorough literature review. There are described models based on lumped parameters with input data coming from direct calculations based on the winding geometry and obtained from FEM modelling software and models considering the wave phenomena in the windings. The analysis was also performed for practical problems in winding modelling: the influence of windings other than the modelled one and the influence of parallel wires in a winding.


Author(s):  
Jaan Hui Pu ◽  
Songdong Shao ◽  
Yuefei Huang ◽  
Khalid Hussain

2018 ◽  
Vol 180 ◽  
pp. 02060 ◽  
Author(s):  
Richard Matas ◽  
Tomáš Syka ◽  
Lukáš Hurda

The article deals with a description of results from research and development of a radial compressor stage with 3D rotor blades. The experimental facility and the measurement and evaluation process is described briefly in the first part. The comparison of measured and computed characteristics can be found in the second part. The last part of this contribution is the evaluation of the rotor blades technological holes influence on the compressor stage characteristics.


Energies ◽  
2015 ◽  
Vol 8 (8) ◽  
pp. 7833-7853 ◽  
Author(s):  
Ian Masters ◽  
Alison Williams ◽  
T. Croft ◽  
Michael Togneri ◽  
Matt Edmunds ◽  
...  

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