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Turbofan engine sizing and tradeoff analysis via signomial programming/

Author(s)
York, Martin A., S.M. Massachusetts Institute of Technology
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Massachusetts Institute of Technology. Department of Aeronautics and Astronautics.
Advisor
Warren W. Hoburg.
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MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission. http://dspace.mit.edu/handle/1721.1/7582
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Abstract
This thesis presents a full 1D core+fan flowpath turbofan optimization model, based on first principles, and meant to be used during aircraft conceptual design optimization. The model is formulated as a signomial program, which is a type of optimization problem that can be solved locally using sequential convex optimization. Signomial programs can be solved reliably and eciently, and are straightforward to integrate with other optimization models in an all-at-once manner. To demonstrate this, the turbofan model is integrated with a simple commercial aircraft sizing model. The turbofan model is validated against the Transport Aircraft System OPTimization turbofan model as well as two Georgia Tech Numerical Propulsion System Simulation turbofan models. Four integrated engine/aircraft parametric studies are performed, including a 2,460 variable multi-mission optimization that solves in 28 seconds.
Description
Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2017.
 
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
 
Cataloged from student-submitted PDF version of thesis.
 
Includes bibliographical references (pages 79-80).
 
Date issued
2017
URI
http://hdl.handle.net/1721.1/112383
Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics.
Publisher
Massachusetts Institute of Technology
Keywords
Aeronautics and Astronautics.

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  • Aeronautics and Astronautics - Master's degree
  • Aeronautics and Astronautics - Master's degree

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