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How In-Service Experience Informs Design Modifications: A Case Study in Aero Engines

Jagtap, Santosh LU ; Johnson, Aylmer; Aurisicchio, Marco and Wallace, Ken (2006) International Conference On Trends in Product Life Cycle, Modeling, Simulation and Synthesis PLMSS-2006
Abstract
This research is triggered by a fundamental shift that is occurring in the manufacture and marketing of aero engines for commercial and defence purposes, away from the selling of products to the provision of services. Under the emerging ‘power by the hour’ paradigm, aero engines are effectively leased to the airlines, with the manufacturing company remaining responsible for their maintenance and repair throughout their service life. This has triggered a major re-assessment of the design of aero engines to reduce their overall life-cycle costs, while maintaining performance efficiency. The important aims of our ongoing research are: firstly to understand the current flows of in-service information to designers; secondly to understand the... (More)
This research is triggered by a fundamental shift that is occurring in the manufacture and marketing of aero engines for commercial and defence purposes, away from the selling of products to the provision of services. Under the emerging ‘power by the hour’ paradigm, aero engines are effectively leased to the airlines, with the manufacturing company remaining responsible for their maintenance and repair throughout their service life. This has triggered a major re-assessment of the design of aero engines to reduce their overall life-cycle costs, while maintaining performance efficiency. The important aims of our ongoing research are: firstly to understand the current flows of in-service information to designers; secondly to understand the information requirements of designers about in-service issues; thirdly to develop the most appropriate theories and methods to support designers in their new task. This paper presents the results of the initial phase of an ongoing research project, which is addressing the first aim of the research, and analyses a sample of service documents currently used by the manufacturing company. Within this sample, a distribution pattern of failure mechanisms across turbines, compressors and combustion chambers has been identified, and the prominent design changes to resolve those failure mechanisms and their benefits are noted. The relationships between some of the parameters are presented, e.g. the type of design changes made to address a particular failure mechanism, and the typical benefits of a particular design change. (Less)
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author
publishing date
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Contribution to conference
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published
subject
keywords
aero engine, service experience, failure mechanism, design change
conference name
International Conference On Trends in Product Life Cycle, Modeling, Simulation and Synthesis PLMSS-2006
language
English
LU publication?
no
id
2fc683cd-9465-40db-9d10-42767ac40e16 (old id 5049983)
date added to LUP
2015-02-17 16:28:15
date last changed
2016-06-29 09:03:09
@misc{2fc683cd-9465-40db-9d10-42767ac40e16,
  abstract     = {This research is triggered by a fundamental shift that is occurring in the manufacture and marketing of aero engines for commercial and defence purposes, away from the selling of products to the provision of services. Under the emerging ‘power by the hour’ paradigm, aero engines are effectively leased to the airlines, with the manufacturing company remaining responsible for their maintenance and repair throughout their service life. This has triggered a major re-assessment of the design of aero engines to reduce their overall life-cycle costs, while maintaining performance efficiency. The important aims of our ongoing research are: firstly to understand the current flows of in-service information to designers; secondly to understand the information requirements of designers about in-service issues; thirdly to develop the most appropriate theories and methods to support designers in their new task. This paper presents the results of the initial phase of an ongoing research project, which is addressing the first aim of the research, and analyses a sample of service documents currently used by the manufacturing company. Within this sample, a distribution pattern of failure mechanisms across turbines, compressors and combustion chambers has been identified, and the prominent design changes to resolve those failure mechanisms and their benefits are noted. The relationships between some of the parameters are presented, e.g. the type of design changes made to address a particular failure mechanism, and the typical benefits of a particular design change.},
  author       = {Jagtap, Santosh and Johnson, Aylmer and Aurisicchio, Marco and Wallace, Ken},
  keyword      = {aero engine,service experience,failure mechanism,design change},
  language     = {eng},
  title        = {How In-Service Experience Informs Design Modifications: A Case Study in Aero Engines},
  year         = {2006},
}