A Systems Engineering Approach to Aero-Engine Life Cycle Costing

A life cycle cost (LCC) analysis considers all the costs that a product/system incurs throughout all phases of its life. As a consequence of the scope that LCC encompasses, LCC models have difficulty being standardized. Additionally, the complexity of the aero-engine necessitates an approach to LCC analysis that has the ability to consider multiple disciplines and sub-systems from different levels. This paper discusses how systems engineering methods can be used in the LCC process to achieve an approach which will be able to adapt to these demands. This approach was then applied to a case study to analyse how LCC changes with the TET and cooling flow fraction. The results from this case study illustrates how a LCC analysis can be used to make design trade-offs and allow the system of interest to be analysed from different aspects.

[1]  James Scanlan,et al.  Modelling the Life Cycle Cost of Aero-engine Maintenance , 2008 .

[2]  Raphael T. Haftka,et al.  Response Surface Approximations for Fatigue Life Prediction , 1997 .

[3]  Emmanuel Adamides,et al.  Model-based assessment of military aircraft engine maintenance systems , 2004, J. Oper. Res. Soc..

[4]  Paul Fletcher,et al.  Gas Turbine Performance , 1998 .

[5]  B. Blanchard,et al.  Life-cycle cost and economic analysis , 1991 .

[6]  David G. Woodward,et al.  Life cycle costing—Theory, information acquisition and application , 1997 .

[7]  Y. Asiedu,et al.  Product life cycle cost analysis: State of the art review , 1998 .

[8]  Balbir S. Dhillon.  Life Cycle Costing: Techniques, Models and Applications , 1989 .

[9]  Dimitri N. Mavris,et al.  Creep Life Uncertainty Assessment of a Gas Turbine Airfoil , 2003 .

[10]  J. B. Young,et al.  The effect of turbine blade cooling on the cycle efficiency of gas turbine power cycles , 2005 .

[11]  James Scanlan,et al.  DATUM Project: Cost Estimating Environment for Support of Aerospace Design Decision Making , 2006 .

[12]  Dimitri N. Mavris,et al.  A Hierarchical Aircraft Life Cycle Cost Analysis Model , 1995 .

[13]  Dimitri N. Mavris,et al.  Creep Life Prediction of Gas Turbine Components under Varying Operating Conditions , 2001 .

[14]  Jeffrey Alun Jones,et al.  Modelling of maintenance, within discrete event simulation , 2002, Annual Reliability and Maintainability Symposium. 2002 Proceedings (Cat. No.02CH37318).

[15]  Marvin Rausand,et al.  Life Cycle Cost (LCC) analysis in oil and chemical process industries , 1999 .

[16]  B. A. Cowles,et al.  High cycle fatigue in aircraft gas turbines—an industry perspective , 1996 .

[17]  Richard Curran,et al.  An integrated systems engineering approach to aircraft design , 2006 .

[18]  W. Chambers.  San Antonio, Texas , 1940 .