Skip to main content
Fachgebiete
Automobil + Motoren Bauwesen + Immobilien Business IT + Informatik Elektrotechnik + Elektronik Energie + Nachhaltigkeit Finance + Banking Management + Führung Marketing + Vertrieb Maschinenbau + Werkstoffe Versicherung + Risiko
DE
EN
Bücher
Zeitschriften
Themenseiten
Organisationspsychologie Projektmanagement Marketing Smart Manufacturing
Weitere Formate
Podcasts Webinare Technik Webinare Wirtschaft Kongresse Veranstaltungskalender Awards
Jetzt Einzelzugang starten
Zugang für Unternehmen
Referenzkunden
SLX-Digitalkonferenz: Zukunftswerkstatt 2024

Mehr Umsatz mit Top-Kontakten

Am 7. Mai erfahren Sie, wie Vertriebsteams Leadgenerierung, Leadnurturing und Leadstrategien effizient steuern können.
Erweiterte Suche
Anmelden
nach oben
Erschienen in:
Introduction Kapitel lesen Erstes Kapitel lesen

2017 | OriginalPaper | Buchkapitel

5. Designing for Service in a Complex Product Service System-Civil Aerospace Gas Turbine Case Study

verfasst von : Andrew Harrison

Erschienen in: Advances in Through-life Engineering Services

Verlag: Springer International Publishing

Einloggen

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config
loading …

Abstract

Gas turbine engines used in commercial aviation are a complex engineering product for which the cost of maintenance over their full operational life can exceed the initial cost of manufacture by a factor of 3–4. With an increasing shift to contracting fixed price maintenance services at the point of sale of the engine, it has become an imperative that the cost of maintenance support is a prime design attribute. This chapter provides a case study on the process of designing for an optimal maintenance cost level from the earliest stages of conceptual design through to product entry into service. The nature of an optimal maintenance cost in terms of customer service value is also explored.

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Springer Professional "Wirtschaft"

Online-Abonnement

Mit Springer Professional "Wirtschaft" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 340 Zeitschriften

aus folgenden Fachgebieten:

  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Versicherung + Risiko




Jetzt Wissensvorsprung sichern!

Jetzt informieren
Vorheriges Kapitel Warranty Driven Design—An Automotive Case Study
Nächstes Kapitel The Knowledge Management Perspective
Fußnoten
1
Rolls-Royce has 49,900 employees worldwide and is active in the Commercial Aerospace, Defence Aerospace, Commercial and Naval Marine and Energy sectors (as of 2016) [1].
 
2
TotalCare® comprises a suite of engine support services including; proactive in-service engine management, overhaul shop maintenance and the collection and management of engine data.
 
3
Rolls-Royce announced further sales of Trent XWB engines with contracted TotalCare® services at the 2009 Paris air-show 4 years ahead of the expected entry into service date of the aircraft.
 
4
Fuel price increases since these 2003/2006 conference presentations/papers have significantly increased the ratio of fuel price to overall aircraft maintenance cost. Also engine maintenance cost is only a sub-set of the total Aircraft maintenance cost.
 
5
In Japan domestic flights compete with the Bullet Train which enjoys a near 100% on time departure record. Even minor delays (minutes) in aircraft departure schedules have a significant impact in customer perception and loyalty.
 
6
For the majority of large civil aircraft the customer airline contracts purchase of the basic aircraft from an airframe manufacturer (Boeing, Airbus and several others) but then has a choice of engine suppliers. Each engine has to have been designed and certified for the Aircraft type, which due to the huge costs involved typically limits the choice to just two engine options.
 
7
A boroscope is a rigid or flexible optical inspection device that allows internal inspection of the engine through relatively small access holes strategically placed within the engines external and internal casing structure.
 
8
The author vividly recalls a personal blinding realization of the complete disconnect between the well lit, CADD enabled design office and the reality of Narita Airports maintenance stands (on a cold wet windy afternoon in failing light) as our airline host politely pointed out the practicality of some of some early conceptual design features.
 
9
Imagine the equivalent whilst driving your car. The onboard monitoring notices an approaching low brake pad thickness indication and it texts a warning message to your local garage. When you arrive at your home that evening the local mechanic is there waiting with a set of replacement pads and all the equipment required to change them for you. You are never exposed to the potential safety issue of poor braking or the additional cost of metal on metal damage to your brake discs.
 
10
In a bypass engine only a proportion of the total airflow pulled into the engine passes through the engine core. This is mixed with fuel and is ultimately expelled as a high temperature, high speed exhaust (the traditional Jet engine). The jet core flow in a bypass engine is kept to a minimum and is primarily used to generate the power necessary to turn a much larger set of fan blades that push a slower but much higher volume of bypass air from the rear of the engine. The higher the bypass ratio the more efficient the engine becomes in simplistic terms.
 
11
The Trent 1000 engine for the Boeing 787 Dreamliner aircraft has a special flat on its fan case flange that allows it to meet the 3 m transportation requirement for Japan.
 
12
See the Rolls-Royce publication [4] or the web sites of most of the major Gas Turbine Engine manufacturers for examples of engine modularity.
 
13
Some joints need to be extremely tight to provide mechanical stability of the assembly. One such joint type involves two concentric rings on mating components in which the inner rings outer diameter is larger than the outer rings inner diameter. In order to assemble the two parts the inner ring is shrunk by super cooling, often with liquid nitrogen, in order to temporarily remove the interference. As the inner part warms, it grows back into contact with the outer part. Once the two are in close thermal contact the reverse operation becomes much more difficult. It may prove impossible to shrink the inner component leaving mechanical force as the only method of disassembly.
 
14
The majority of organisations will conduct a FMECA or Failure Mode Effect and Criticality Analysis as part of their design/safety process. In your organisation is this done before design starts as a guide to good design practice or after design as a check for safety compliance? One of these approaches has a high probability of reducing maintenance costs relative to the other.
 
15
With the time from product design launch to statistically significant service maintenance data being measured in decades it is often the case that the only solid data comes from a design of engine 2 or 3 generations older than the current project.
 
16
Whilst customers can be very vocal about the positive benefits that health monitoring brings it is only ever minimising the pain that is inherently built into the product design. Most customers would much rather have you design that pain out before it ever gets to them. Rolls-Royces major customers all agree that whilst rapid and effective response to their emerging issues is an admirable trait in a supplier they would rather operate boring and predictable products that never present issues in the first place.
 
Literatur
1.
2.
Horder P, Senior Vice President, SH&E Ltd (2003) Managing aircraft maintenance costs conference (Brussels)
3.
Harrison A (2006) GT2006-90570 Design for service—harmonizing product design with a services strategy. In: Proceedings of GT2006 ASME turbo expo 2006: power for land, Sea and Air, May 8-11, 2006, Barcelona, Spain
4.
Rolls Royce plc, The Jet Engine book, The Jet Engine—a complete overview of the modern gas turbine. Key Publishing Ltd
Metadaten
Titel
Designing for Service in a Complex Product Service System-Civil Aerospace Gas Turbine Case Study
verfasst von
Andrew Harrison
Copyright-Jahr
2017
Buch
Advances in Through-life Engineering Services

Print ISBN: 978-3-319-49937-6

Electronic ISBN: 978-3-319-49938-3

Copyright-Jahr: 2017

DOI
https://doi.org/10.1007/978-3-319-49938-3_5