May 2016

General assembly of the MANTIS project in Ljubljana

A three-day MANTIS project general assembly took place in Ljubljana, Slovenia from 23rd to 25th of May 2016. The meeting was organized by Jožef Stefan Institute and hosted 73 participants.

During the event there were eight technical Workshops (one for each project work package), the main General Assembly meeting, the Executive Board meeting, and a Keynote talk by the member of External Advisory Board. Each workshop discussed its role to reach the project goals of proactive maintenance by establishing the overall Service platform architecture.

Working part

The first day started with the project overview by the Coordinator, followed by the WP4 and WP5 workshops in parallel. The second day consisted of WP1, WP2, WP3, WP6, and WP8 workshops. Special attention was given to the Keynote talk by Jerker Delsing, who presented his view on proactive maintenance. The second day ended with the General Assembly meeting. On the third day WP2, WP7 and WP8 took place, and the day ended with the Executive Board meeting.

Each workshop discussed some open issues and set future actions and deadlines in order to reach its goals as well as the overall goals of the project.

Keynote talk in the Main lecture room
Keynote talk in the Main lecture room

Social part

Social part of the event consisted of a short Ljubljana tour at the end of the second day, where we experienced the drive with the new Ljubljana’s Electric train Urban (we are grateful to the City of Ljubljana for giving us the opportunity to test the train), and a dinner at the Ljubljana Castle with the local culinary.

MANTIS project attendees in front of the electric train
MANTIS project attendees in front of the electric train

Optimising Maintenance: What are the expectations for Cyber Physical Systems

The paper “Optimising Maintenance: What are the expectations for Cyber Physical Systems” has been presented at the 3rd International Workshop on Emerging Ideas and Trends in Engineering of Cyber-Physical Systems, EITEC’16. This workshop was held at the CPS Week 2016 in Vienna, Austria. The paper is the result of a collaboration between four MANTIS partners: Erkki Jantunen (VTT), Urko Zurutuza (MGEP), Luis Lino Ferreira (ISEP) and Pal Varga (BME). You can download the paper in the Dissemination section of the web.

Abstract—The need for maintenance is based on the wear of components of machinery. If this need can be defined reliably beforehand so that no unpredicted failures take place then the maintenance actions can be carried out economically with minimum disturbance to production. There are two basic challenges in solving the above. First understanding the development of wear and failures, and second managing the measurement and diagnosis of such parameters that can reveal the development of wear. In principle the development of wear and failures can be predicted through monitoring time, load or wear as such. Monitoring time is not very efficient, as there are only limited numbers of components that suffer from aging which as such is result of chemical wear i.e. changes in the material. In most cases the loading of components influences their wear. In principle the loading can be stable or varying in nature. Of these two cases the varying load case is much more challenging than the stable one. The monitoring of wear can be done either directly e.g. optical methods or indirectly e.g. vibration. Monitoring actual wear is naturally the most reliable approach, but it often means that additional investments are needed. The paper discusses the above issues and what are the requirements that follow from these for optimising maintenance based of the use of Cyber Physical Systems.