Thesis-2005-LaBand.pdf (9.5 MB)
Download fileSystems reliability for phased missions
thesis
posted on 2018-08-09, 16:06 authored by Rachel A. La BandThe concept of a phased mission has been introduced as a sequential set of objectives
that operate over different time intervals. During each phase of the mission, the
system may alter such that the logic model, system configuration, or system failure
characteristics may change to accomplish a required objective.
A new fault tree method has been proposed to enable the probability of failure in each
phase to be determined in addition to the whole mission unreliability. Phase changes
are assumed to be instantaneous, and component failure rates are assumed to be
constant through the mission. For any phase, the method combines the causes of
success of previous phases with the causes of failure for the phase being considered to
allow both qualitative and quantitative analysis of both phase and mission failure. A
new set of Boolean laws is introduced to combine component success and failure
events through multiple phases so that the expression for each phase failure can be
reduced into minimal form. [Continues.]
Funding
Great Britain, Ministry of Defence.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Publisher
© Rachel La BandPublisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2005Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.Language
- en