Approach to multicriterion optimization of quench performance of superconducting winding

Surdacki, P.; Montusiewicz, Jerzy

doi:10.1109/20.497475

Cited by 9 publications

(6 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The effective methods for multi-criteria evaluation of the created design solutions or created new materials and the choice of the best solution without the scalarisation of the analysed set of criteria describing properties or performance are described in [21,22].…”

Section: Introductionmentioning

confidence: 99%

Wear Characteristics of Hardfacing Coatings Obtained by Tungsten Inert Gas Method

Dziedzic¹,

Jóźwik²,

Barszcz³

et al. 2019

Adv. Sci. Technol. Res. J.

View full text Add to dashboard Cite

This paper evaluates the wear characteristics of hardfacing coatings. Regenerative hardfacing coatings were applied with the TIG (Tungsten Inert Gas) method. The solid welding wires were used to obtain the coatings marked as: EL-500 HB, EL-650 HB, and EL-3348. The tribological analysis of samples was conducted at room temperature. The wear rate was evaluated with a THT 1000 Anton Parr ball-on-disc tribotester, in accordance with the ASTM G-133 standard. The counterbody (static partner) consisted of balls with the diameter of 6 mm made of Al2O3. The test was performed with the sliding speed of the friction pair 0.4 m/s, track radius 10 mm, normal load 20 N, acquisition rate 10 Hz and sliding distance 2000 m. During the test, the friction coefficient and wear rate were recorded. The multi-criteria assessment of the construction materials discussed, while taking into account five criteria, showed that EL-3348 HB is the best material. Computer applications were used for multi-criteria assessment and statistical processing of data.

show abstract

Section: Introductionmentioning

confidence: 99%

Wear Characteristics of Hardfacing Coatings Obtained by Tungsten Inert Gas Method

Dziedzic¹,

Jóźwik²,

Barszcz³

et al. 2019

Adv. Sci. Technol. Res. J.

View full text Add to dashboard Cite

show abstract

“…They can be helpful at design stage to predict quench behavior and involve stability issues of the superconducting winding. The numerical procedure used in this paper can also extend the optimization analysis [7] to take into account changing location of the quench initiation.…”

Section: Discussionmentioning

confidence: 99%

Resistive disturbance location influence on superconducting winding quench performance

Surdacki¹

2002

IEEE Trans. Magn.

Self Cite

View full text Add to dashboard Cite

In this paper, computational model of the resistive zone propagation based on the heat transfer and the superconductor critical state model was adopted in order to compute some quench characteristics of the cylindrical superconducting (SC) winding: temperature, current density, resistive zone resistance, and voltage. The resistive disturbance location influence on the quench performance is investigated to find the winding areas that are vulnerable to quench behavior and may be decisive for stability protection.

show abstract

“…However, even when absolute value signs are incorporated (Osyczka 1984, Surdacki andMontusiewicz 1996), the motivation for this approach is unclear. Consequently, equation (5) is not evaluated in this study.…”

Section: Transformation Methodsmentioning

confidence: 95%

Function-transformation methods for multi-objective optimization

Marler

Arora

2005

Engineering Optimization

136

101

View full text Add to dashboard Cite

It is useful with multi-objective optimization (MOO) to transform the objective functions such that they all have similar units and orders of magnitude. This article evaluates various transformation methods using simple example problems. Viewing these methods as different means to restrict function values sheds light on how the methods perform. The weighted sum approach for MOO is used to study how well different methods aid in depicting the Pareto optimal set. Whereas using unrestricted weights is well suited for providing a single solution that reflects preferences, it is found that using a convex combination of functions is desirable when generating the Pareto set. In addition, it is shown that some transformation methods are detrimental to the process of generating a diverse spread of points, and criteria are proposed for determining when the methods fail to generate an accurate representation of the Pareto set. Advantages of using a simple normalization-modification are demonstrated.

show abstract

Approach to multicriterion optimization of quench performance of superconducting winding

Cited by 9 publications

References 8 publications

Wear Characteristics of Hardfacing Coatings Obtained by Tungsten Inert Gas Method

Wear Characteristics of Hardfacing Coatings Obtained by Tungsten Inert Gas Method

Resistive disturbance location influence on superconducting winding quench performance

Function-transformation methods for multi-objective optimization

Contact Info

Product

Resources

About