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Article
Publication date: 6 May 2024

Andreas Gschwentner, Manfred Kaltenbacher, Barbara Kaltenbacher and Klaus Roppert

Performing accurate numerical simulations of electrical drives, the precise knowledge of the local magnetic material properties is of utmost importance. Due to the various…

Abstract

Purpose

Performing accurate numerical simulations of electrical drives, the precise knowledge of the local magnetic material properties is of utmost importance. Due to the various manufacturing steps, e.g. heat treatment or cutting techniques, the magnetic material properties can strongly vary locally, and the assumption of homogenized global material parameters is no longer feasible. This paper aims to present the general methodology and two different solution strategies for determining the local magnetic material properties using reference and simulation data.

Design/methodology/approach

The general methodology combines methods based on measurement, numerical simulation and solving an inverse problem. Therefore, a sensor-actuator system is used to characterize electrical steel sheets locally. Based on the measurement data and results from the finite element simulation, the inverse problem is solved with two different solution strategies. The first one is a quasi Newton method (QNM) using Broyden's update formula to approximate the Jacobian and the second is an adjoint method. For comparison of both methods regarding convergence and efficiency, an artificial example with a linear material model is considered.

Findings

The QNM and the adjoint method show similar convergence behavior for two different cutting-edge effects. Furthermore, considering a priori information improved the convergence rate. However, no impact on the stability and the remaining error is observed.

Originality/value

The presented methodology enables a fast and simple determination of the local magnetic material properties of electrical steel sheets without the need for a large number of samples or special preparation procedures.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 24 April 2024

Barbara Neuhofer, Krzysztof Celuch and Ivana Rihova

Focussing on the perspective of business event leaders, this study aims to explore the future of transformative experience (TE) events, recognising a paradigm shift from…

Abstract

Purpose

Focussing on the perspective of business event leaders, this study aims to explore the future of transformative experience (TE) events, recognising a paradigm shift from organising conventional events to designing and guiding TEs in the meetings, incentives and conferences as exhibitions (MICE) context.

Design/methodology/approach

Using a qualitative interview-based design, insights from 20 international business events industry leaders were gathered and analysed by using thematic analysis through a multi-step process with MAXQDA.

Findings

The findings discuss the future of transformative events by identifying the paradigm shift towards TE in business events and outline key dimensions of the leader’s and team’s mindset and skills. Five design principles for TE events in the MICE sector are identified: design for change; emotionally experiential environments; personal engagement; responsibility; and transformative measurement.

Practical implications

The study offers a snapshot of how transformative events of the future could be designed and suggests a series of practical insights for MICE event leaders and organisers seeking to leverage events as a catalyst for intentional transformation, positive impact and long-lasting change.

Originality/value

The study adds to the emerging body of knowledge on TEs and contributes to an extended stakeholder perspective, namely, that of business event leaders and their teams who are instrumental in facilitating transformative events. An original framework for designing TE MICE events is offered as a theoretical contribution.

Details

International Journal of Contemporary Hospitality Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0959-6119

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