Rotorcraft virtual engineering; supporting life-cycle engineering through design and development, test and certification and operations

2018 ◽  
Vol 122 (1255) ◽  
pp. 1475-1495 ◽  
Author(s):  
G. D. Padfield

ABSTRACTThe rotorcraft industry needs Virtual Engineering first to ensure decisions made early in the life-cycle, at the requirements capture and preliminary design phases for example, are reliably informed. Later, in design, development and qualification, Virtual Prototypes can become the centre of attention for critical reviews and, ultimately, certification itself. A significant challenge is to ensure that model fidelity is good enough, not only for supporting design decisions but also in establishing requirements based on sufficiently mature technologies. This international conference, Rotorcraft virtual engineering; supporting life-cycle engineering through design and development, test and certification and operations and co-sponsored by the RAeS/AHS/A3F/DGLR/AIDAA addressed these themes and this paper reviews and assesses the value of the various contributions.

Author(s):  
E. J. Reed ◽  
R. R. Horton ◽  
J. B. Fyfe

A major portion of the Life Cycle Cost (LCC) of a modern high technology weapon system is determined by design decisions made very early in the development process. Many of these decisions are so fundamental that later changes become impractical. As a result, a usage-sensitive, interactive aircraft engine LCC model has been developed by Pratt & Whitney Aircraft to evaluate and prioritize potential technology candidates during conceptual/preliminary design. This paper discusses the development of the EAGLE (Engine/Airframe Generalized LCC Evaluator) model, its validation using results from the Advance Technology Engine Studies (ATES), and includes an example engine technology evaluation.


Author(s):  
Edward J. Reed

A major portion of the Life Cycle Cost (LCC) of a modern high technology weapon system is determined by design decisions made very early in the development process. Many of these decisions affect the design so fundamentally that later changes become impractical. Although a computerized weapon system LCC methodology has been developed at Pratt & Whitney to evaluate engine trades, its complexity limits its usefulness during preliminary design when the largest number of decisions must be made. This paper describes a technique used to provide a simplified version of this methodology to design engineers to conduct configuration/cost/performance trades. By supplying the designer with a simple, effective evaluation tool, LCC becomes an integral part of the design system from the beginning.


Procedia CIRP ◽  
2021 ◽  
Vol 98 ◽  
pp. 571-576 ◽  
Author(s):  
Tomohiko Sakao ◽  
Peter Funk ◽  
Johannes Matschewsky ◽  
Marcus Bengtsson ◽  
Mobyen Uddin Ahmed

1995 ◽  
Vol 117 (B) ◽  
pp. 42-47 ◽  
Author(s):  
K. Ishii

Life-cycle engineering seeks to incorporate various product life-cycle values into the early stages of design. These values include functional performance, manufacturability, serviceability, and environmental impact. We start with a survey of life-cycle engineering research focusing on methodologies and tools. Further, the paper addresses critical research issues in life-cycle design tools: design representation and measures for life-cycle evaluation. The paper describes our design representation scheme based on a semantic network that is effective for evaluating the structural layout. Evaluation measures for serviceability and recyclability illustrate the practical use of these representation schemes.


2021 ◽  
Vol 61 (S3) ◽  
pp. 24-25
Author(s):  
Rowena Duckstein ◽  
Felipe Cerdas ◽  
Alexander Leiden

Author(s):  
David E. Lee ◽  
Michel A. Melkanoff

Abstract Traditional engineering analysis of product designs has focused primarily on a product’s operational performance without considering costs of manufacturing and other stages downstream from design. In contrast, life cycle analysis of a product during its initial development can play a crucial role in determining the product’s overall life cycle cost and useful life span. This paper examines product life cycle engineering analysis - measurement of product operational performance in a life cycle context. Life cycle engineering analysis is thus considered both as an extension of traditional engineering analysis methods and as a subset of a total product life cycle analysis. The issues critical to life cycle engineering analysis are defined and include product life cycle data modeling and analysis, analysis tools and their performance regimes, performance tradeoff measurement and problems of life cycle engineering analysis in an organizational context. Recommendations are provided for future research directions into life cycle engineering analysis in the context of integration architectures for concurrent engineering.


2002 ◽  
Vol 35 (8) ◽  
pp. 810-813 ◽  
Author(s):  
Yoshiaki Shimizu ◽  
Yasunori Miyata ◽  
Eiki Ishihara

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