Design of high speed proprotors using multiobjective optimization techniques

Aditi Chattopadhyay, T. R. McCarthy

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A multidisciplinary optimization procedure is developed for the design of high speed proprotors. The objectives are to simultaneously maximize the propulsive efficiency in high speed cruise and the rotor figure of merit in hover. Since the problem involves multiple design objectives, multiobjective function formulation techniques are used. Two different multiobjective function procedures, the Kreisselmeier-Steinhauser function approach and the Minimum Sum β approach, are used. A detailed two-celled isotropic box beam is used to model the load carrying member within the rotor biade. Constraints are imposed on rotor blade aeroelastic stability in cruise, the first natural frequency in hover and total blade weight. Both aerodynamic and structural design variables are used. The results obtained using both objective function formulations are compared to the reference rotor and show significant aerodynamic performance improvements without sacrificing dynamic and aeroelastic stability characteristics. The procedure developed provides significant design trends and trade-off information associated with the two conflicting design objectives.

Original languageEnglish (US)
Pages (from-to)155-172
Number of pages18
JournalEngineering Optimization
Volume23
Issue number2
StatePublished - 1994

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Multiobjective optimization
Multi-objective Optimization
Rotor
Optimization Techniques
High Speed
Rotors
Blade
Aerodynamics
Aerodynamic Design
Structural Design
Formulation
Natural Frequency
Structural design
Turbomachine blades
Natural frequencies
Figure
Objective function
Trade-offs
Maximise
Design

ASJC Scopus subject areas

  • Management Science and Operations Research
  • Engineering (miscellaneous)

Cite this

Design of high speed proprotors using multiobjective optimization techniques. / Chattopadhyay, Aditi; McCarthy, T. R.

In: Engineering Optimization, Vol. 23, No. 2, 1994, p. 155-172.

Research output: Contribution to journalArticle

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