ANALYTICAL DETERMINATION OF THE HYDROGENERATOR ROTOR ENVELOPE POLES GEOMETRICAL PARAMETERS BASED ON AIR GAP SENSORS SIGNALS

I.O. Zaitsev;  ; A.S. Levytskyi;

doi:10.15407/publishing2018.50.062

ANALYTICAL DETERMINATION OF THE HYDROGENERATOR ROTOR ENVELOPE POLES GEOMETRICAL PARAMETERS BASED ON AIR GAP SENSORS SIGNALS

Praci Institutu elektrodinamiki Nacionalanoi akademii nauk Ukraini ◽

10.15407/publishing2018.50.062 ◽

2018 ◽

Vol 2018 (50) ◽

pp. 62-70

Author(s):

I.O. Zaitsev ◽

◽

A.S. Levytskyi ◽

Keyword(s):

Air Gap ◽

Analytical Determination ◽

Geometrical Parameters ◽

Gap Sensors

Download Full-text

Complete Williams Asymptotic Expansion near the Crack Tips of Collinear Cracks of Equal Lengths in an Infinite Plane

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.258.209 ◽

2016 ◽

Vol 258 ◽

pp. 209-212 ◽

Cited By ~ 2

Author(s):

Larisa Stepanova ◽

Pavel Roslyakov ◽

Tatjana Gerasimova

Keyword(s):

Plane Elasticity ◽

Analytical Determination ◽

Geometrical Parameters ◽

Infinite Plane ◽

Variable Theory ◽

Complex Variable Theory ◽

Plane Medium ◽

Crack Tips ◽

Plane Elasticity Theory

The present study is aimed at analytical determination of coefficients in crack tip expansion for two collinear finite cracks of equal lengths in an infinite plane medium. The study is based on the solutions of the complex variable theory in plane elasticity theory. The analytical dependence of the coefficients on the geometrical parameters and the applied loads for two finite cracks in an infinite plane medium is given. It is shown that the effect of the higher order terms of the Williams series expansion becomes more considerable at large distances from the crack tips. The knowledge of more terms of the stress asymptotic expansions allows us to approximate the stress field near the crack tips with high accuracy.

Download Full-text

Magnetic Pulse Welding by Electromagnetic Compression: Determination of the Impact Velocity

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.966-967.489 ◽

2014 ◽

Vol 966-967 ◽

pp. 489-499 ◽

Cited By ~ 12

Author(s):

Joern Lueg-Althoff ◽

Amanda Lorenz ◽

Soeren Gies ◽

Christian Weddeling ◽

Gunther Goebel ◽

...

Keyword(s):

Impact Velocity ◽

Measurement Data ◽

Analytical Determination ◽

Geometrical Parameters ◽

Magnetic Pulse ◽

Engineering Structures ◽

Magnetic Pulse Welding ◽

Pulse Welding ◽

The Impact

The implementation of multi-material concepts and the manufacturing of modern lightweight structures, for example in automotive engineering, require appropriate joining technologies. The ability to join dissimilar materials without additional mechanical elements, chemical binders, or adverse influences of heat on the joining partners is key in reaching the desired weight reduction in engineering structures. The Magnetic Pulse Welding (MPW) process meets these demands, making it a viable alternative to conventional thermal welding and mechanical joining processes. The present paper focuses on the analytical determination of the impact velocity as one of the key parameters of MPW processes. On the basis of experimentally recorded data concerning the course of the discharge current and geometrical parameters of the welding setup, the respective velocity is determined. A comparison with measurement data gained by Photon Doppler Velocimetry is performed.

Download Full-text