Enhanced integrated aerodynamic load/dynamic approach to optimum rotor blade design

Aditi Chattopadhyay, Y. Danny Chiu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

An enhanced integrated aerodynamic load/dynamic optimization procedure is developed to minimize vibratory root shears and moments. The optimization problem is formulated with 4/rev vertical and 3/rev inplane shears at the blade root as objective functions and constraints are imposed on 3/rev radial shear, 3/rev flapping and torsional moments and 4/rev lagging moment. Constraints are also imposed on blade natural frequencies, weight, autorotational inertia, centrifugal stress and rotor thrust. The 'Global Criteria Approach' is used for formulating the multi-objective optimization. Design variables include spanwise distributions of blade bending stiffnesses, torsional stiffness, nonstructural mass, chord, radius of gyration and blade taper ratio. The program CAMRAD is coupled with an optimizer, which consists of the program CONMIN and an approximate analysis, to obtain optimum designs. The optimization procedure is applied to an advanced rotor as a reference design.

Original languageEnglish (US)
Title of host publicationAnnual Forum Proceedings - American Helicopter Society
PublisherPubl by American Helicopter Soc
Pages459-468
Number of pages10
Volume1
StatePublished - May 1990
Externally publishedYes
Event46th Annual Forum Proceedings of the American Helicopter Society. Part 1 (of 2) - Washington, DC, USA
Duration: May 21 1990May 23 1990

Other

Other46th Annual Forum Proceedings of the American Helicopter Society. Part 1 (of 2)
CityWashington, DC, USA
Period5/21/905/23/90

Fingerprint

Aerodynamic loads
Turbomachine blades
Rotors
Stiffness
Bending (deformation)
Multiobjective optimization
Natural frequencies

ASJC Scopus subject areas

  • Aerospace Engineering
  • Transportation

Cite this

Chattopadhyay, A., & Chiu, Y. D. (1990). Enhanced integrated aerodynamic load/dynamic approach to optimum rotor blade design. In Annual Forum Proceedings - American Helicopter Society (Vol. 1, pp. 459-468). Publ by American Helicopter Soc.

Enhanced integrated aerodynamic load/dynamic approach to optimum rotor blade design. / Chattopadhyay, Aditi; Chiu, Y. Danny.

Annual Forum Proceedings - American Helicopter Society. Vol. 1 Publ by American Helicopter Soc, 1990. p. 459-468.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chattopadhyay, A & Chiu, YD 1990, Enhanced integrated aerodynamic load/dynamic approach to optimum rotor blade design. in Annual Forum Proceedings - American Helicopter Society. vol. 1, Publ by American Helicopter Soc, pp. 459-468, 46th Annual Forum Proceedings of the American Helicopter Society. Part 1 (of 2), Washington, DC, USA, 5/21/90.
Chattopadhyay A, Chiu YD. Enhanced integrated aerodynamic load/dynamic approach to optimum rotor blade design. In Annual Forum Proceedings - American Helicopter Society. Vol. 1. Publ by American Helicopter Soc. 1990. p. 459-468
Chattopadhyay, Aditi ; Chiu, Y. Danny. / Enhanced integrated aerodynamic load/dynamic approach to optimum rotor blade design. Annual Forum Proceedings - American Helicopter Society. Vol. 1 Publ by American Helicopter Soc, 1990. pp. 459-468
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