© Rolls-Royce plc 2009The information in this document is the property of Rolls-Royce plc and may not be copied or communicated to a third party, or used for any purpose other than that for which it is supplied without the express written consent of Rolls-Royce plc.This information is given in good faith based upon the latest information available to Rolls-Royce plc, no warranty or representation is given concerning such information, which must not be taken as establishing any contractual or other commitment binding upon Rolls-Royce plc or any of its subsidiary or associated companies.Published by NATO Research and Technology Organization (RTA) with permission

Lecture Series AVT-167

Strategies for Optimization and Automated Design of Gas Turbine Engines (Complex Systems)

Applied Vehicle Technology Panel

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Agenda

Introduction to Lecture Series

Aim and Goal for the Lecture Series

Organizational topics

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Why do we need optimization and automated design processes?

Gas Turbines are complex products which have …

Lots of interactions between their parts Parts operating in a very demanding

environment Far reaching failure consequences

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Typical Gas Turbine as an Example for a Complex System

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Typical loading environment

The forces on one HP Turbine blade are equivalent to one fully laden double decker bus. Typical Trent HP Turbine discs have 92 blades. Therefore, the total force on a single disc is equivalent to a fleet of 92 buses carrying approximately 1000 people.

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Consequences of failure

A disc burst has similar energy to a family saloon car hitting a brick wall at 100 mph or is equivalent to throwing a car 300 feet into the air.

A failure of a such a part during flight would result in disc sections being thrown approximately 1½ miles from the aircraft. A failed part would not be contained within the engine and if travelling in a disadvantageous direction would rip through the aircraft fuselage.

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Business drivers

FROM:

StrengtheningSimulation’s Business Impact:New Strategies in Aircraft EnginesJuly 13, 2009By Bruce Jenkins, Principal Analyst, Ora Research LLC

Ora Research LLCP.O. Box 391227Cambridge, MA 02139-0013USAtel. +1 617 875 9598www.oraresearch.com

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Aim and Goals for this Lecture Series

To define terminology and present optimization techniques;

To outline practical approaches to the formulation of automated gas turbine engines (complex systems) design tasks;

To teach the methodology and the processes and NOT the tools;

To present practical examples of component, subsystem and system level designs and optimizations;

To address key technical and human barriers.

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Agenda for the LS – Day 1Welcome Day 1 Welcome and Coffee

8:00Introduction to Lecture Series Introduction to the lecture series

8:30Terminology & Optimization Techniques Introduction & Terminology

8:50  Global Optimisation

9:20  Coffee

10:30  Local Optimisation

11:00  Complements on Surrogate Based Optimization for Engineering

Design12:00

  Lunch12:30

Practical Examples: part & component applications Introduction for the section

14:00  Case Study 1: High Pressure Compressor Blade

14:20  Case Study 2: High Pressure Compressor Endwalls

15:00  Coffee

15:40  Case Study 3: Component Level

16:10Practical Examples: Sub-systems Introduction for the section

16:50  Case Study 4: Sub-system Level

17:10Day 1 Close Close of Day 1

17:50

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Agenda for the LS – Day 2Welcome Day 2 Welcome and Coffee

8:00Practical Examples: Sub-systems (cont.) Case Study 5: Long Term Advanced Propulsion Concept and

Technologies (LAPCAT)8:30

  Case Study 6: System Level9:10

  Coffee9:50

Practical Examples: System Optimization Introduction for the section10:20

  Case Study 7: PMDO Whole Engine Example10:40

  Case study 8: Honeywell Aerospace Improves Efficiency and Drives Innovation

11:20  Lunch

12:00Key Resources and Show Stoppers Introduction for the section

13:30  Geometry Parameterization

13:50  Tuning of optimisation strategies

14:10  Coffee

14:40  Cultural issues (e.g. Aero v Mechanical)

15:10  Future Developments

15:40Discussion & Close Discussion & Close

16:10

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Organizational topics I

Each section has A short intro to the sections 2- 4 presentations or case studies

Typically the presentation (except the methods presentations) is scheduled for 40 min including at least 10 min discussion time.

Coffee Breaks have been organized to foster discussion with the participants and the presenters

There is no lunch provided but there are ample of restaurants in proximity of the venue

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Organizational topics II

Copies of the presentation materials will be provided

Your feedback will be used to improve the material and to create Educational Notes

These notes will contain the presentation material and papers and will be provided via the NATO web site (within the next 6 month)

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