Page History

20.01.2017 

No meeting this week.

Title: Modelling degradations, condition based maintenance and imperfect tests for Safety Instrumented System (PresentationESRELSeminarRAMS.pdf)

Classical analytical models developed to quantify the availability of Safety Instrumented Systems (SIS) are currently based on the assumption of exponential lifetime distributions for all the units they are made of (1). The aim of the present work is to show how some stochastic modeling framework based on renewal processes, virtual age and multiphase Markov processes can be used to generalize existing analytical tools. The main goal is to include other lifetime laws than the exponential one (e.g. Weibull law or lifetime based on discrete state degradation process) and to model the possible effects of tests and condition-based maintenance.

The presentation this Friday will focus on a preliminary discussion about Weibull law versus Exponential law. 

(1) M. Rausand, Reliability of Safety Critical Systems, Wiley, Hoboken, NJ. 2014

Anne would continue with her talk of the previous seminar with focus on:

•  the ageing model
•  the numerical results and their interpretation

Prof. Antoine Rauzy

Yun Zhang

Yun and Antoine will together give a presentation about modelling of a system with AltaRica. A use case of simplied HIPPS is investigated. (rams seminar 03.03.pdf)

Shenae Lee

Shenae will present her ESREL paper 2017 (June 18-22) and she would like to use this seminar to collect some comments.

Title: Modelling hazardous events for decision support (15min) (Shenae_ESREL2017_RAMS seminar.pdf)

Prof. Marvin Rausand 

Title: A historical perspective on the development of the RAMS group at NTNU. (RAMS-history.pdf)

Gerd Kjølle is going to make a presentation about reliability of power systems and give some examples of topics and projects she is working with in this field, including the new centre for environment-friendly research CINELDI. (RAMS group seminar_Reliability of power systems_2017-03-31_v2.pdf)

She is Master of science (sivilingeniør) in electric power engineering, NTH 1984. PhD (doctor ingeniør) in electric power engineering, NTNU 1996. Diploma in the Theory and Practice of Teaching, NTH 1986.

Gerd Kjølle's main position is at SINTEF Energy Research, Department of Energy Systems as Chief Scientist. She is centre director at Centre for Intelligent Electricity Distribution - CINELDI.

Responsible for the PhD course ET8207 Power system reliability. For more information, please refer to https://www.ntnu.edu/employees/gerd.kjolle.

Marta is going to present her paper and collect some comments. 

The paper is titled: Domino effect triggered by fire: performance assessment of safety barriers in harsh environmental conditions. 

It will be presented in HAZARDS27 conference in May. 

He is from Department of Railway Information Engineering, Southwest Jiaotong University, (SWJTU), China. He will introduce himself, the Traffic Information Engineering and Control in SWJTU and the RAMS application in railway signaling system (approx.30 min).

Topic: RAMS application in High-speed Railway signaling system (presentation.pdf)

His research interests include reliability assesssment, risk analysis of high-speed railway signaling System.

There is no RAMS seminar this Friday. Instead, you can attend the guest lecture given by Professor Ali Mosleh on Thursday. See forwarded message below.

Professor Ali Mosleh will give a guest lecture about Risk and Reliability Analysis: Promise, Reality, and Future.

Dr. Ali Mosleh is a Distinguished Professor and holder of the Evelyn Knight Chair in Engineering at the University of California in Los Angeles. He was elected to the US National Academy of Engineering in 2010, and consultant and technical advisor to numerous national and international organizations, including appointment by President George W. Bush to the U.S. Nuclear Waste Technical Review Board, a position he continued to serve in the administration of President Obama. Professor Mosleh is an Adjunct Professor and International Chair at Department of Marine Technology.

Date and time for guest lecture: Thursday April 27th at 1215-13. 

Location: T1 at Marine Technology Center, Tyholt.

Map: http://bit.ly/2ogZgK6

Abu Md Ariful Islam

This week, Ariful, the RAMS student is going to share with us his master project and preferably get some feedbacks.

Topic: Rotary machine prognostics based on Gamma process (Seminar_Ariful.pdf)

The presentation lasts for 20-25 min.

Giusi Ancione, postdoctoral researcher from the university of Messina (Italy), is visiting here for 2 months.

She would like to give a presentation entitled: A tool for cranes to manage risk due to release of hazardous materials