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Annual Report 2015
Study the overall
industrial gap and
status
Identify the most
important subsea
factors
Confirm information in discussion with industry partners
Acquire comments and feedback from industry partners
Study the overall
industrial gap and
status
Develop new
framework of
RAMS formulation
and allocation
Study the overall
industrial gap and
status
Develop model-
based RAMS
verification
framework
Test and improve methods and models by
conducting case studies (other sub-projects)
Status & gap
analysis
Publications &
presentations
New
framework for
adaption by
industry
RAMS in system design
Project manager and main
PhD supervisor, Prof.
Mary Ann Lundteigen
The objective of this project is to redesign reliability
and availability assessments so that they are more
suited to support decision-making in early design
phases. Today, the assessments are often carried
out too late to have an impact on system architec-
ture. It is paramount to frame assessments so that
all relevant factors of importance to reliability and
availability are captured, including e.g. weight and
modularization and location of components.
The first phase of the project focuses on under-
standing in more detail the industrial status and
challenges on the use of reliability and availability
assessments for qualification of new technology.
Industry partners have already shared some
of their specific challenges in workshops and
reports, and their input has been used to confirm,
but also narrow, the research focus. Two research
topics have been circled out as being the most
important: (i) How should RAMS requirements be
formulated to give suitable balanced functional
as well as non-functional (e.g. construction and
weight) requirements and constraints, and (ii)
what is a suitable RAMS model to support early
design evaluations. In collaboration with industry
partners, we have identified two other sub-pro-
jects as case studies for the research: The Subsea
gate box system (described in the research area
Field architecture) and the Membrane system (de-
scribed in the research area Separation process
concepts).
PhD candidate,
Juntao Zhang
Co-supervisor, Associate
Prof. Yiliu Liu
Figure 9. Main tasks of the subproject
RAMS discussions in the NTNU team