A design optimization procedure for minimizing drive system weight of high speed proprotors

Aditi Chattopadhyay, Thomas R. McCarthy

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


An optimization procedure is developed to address the problem of minimizing the drive system weight of high speed proprotor aircraft which are required to demonstrate fixed-wing-like efficiencies in high speed forward flight and maintain acceptable hover figure of merit similar to helicopters. The optimization is performed using the method of feasible directions. A hybrid approximate analysis procedure is also used to reduce the computational effort of using exact analysis for every function evaluation necessary within the optimizer. The results compared to a reference rotor show significant weight reductions. The aerodynamic performance of the optimized rotor, analyzed at “off-design” points to judge the, strength of the optimization, problem formulation and the validity of the resulting design, shows-considerable improvements. The results are compared to the reference values and significant reduction in the weight is achieved.

Original languageEnglish (US)
Pages (from-to)239-254
Number of pages16
JournalEngineering Optimization
Issue number3
StatePublished - Jan 1 1995


  • Aircraft
  • drive system
  • optimization
  • prop-rotors

ASJC Scopus subject areas

  • Computer Science Applications
  • Control and Optimization
  • Management Science and Operations Research
  • Industrial and Manufacturing Engineering
  • Applied Mathematics


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