Wind tunnel testing of a Mach-scaled rotor model with trailing-edge flaps

Smart Materials and Structures

Volumn 10, Issue 1, 2001, Pages 1-14

  Koratkar, Nikhil A ^a   Chopra, Inderjit ^a  

^a UNIVERSITY OF MARYLAND   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACTUATORS; MATHEMATICAL MODELS; NEURAL NETWORKS; PIEZOELECTRIC DEVICES; WIND TUNNELS;

MACH SCALED ROTOR MODEL; TRAILING EDGE FLAPS; WIND TUNNEL TESTING;

ROTORS;

EID: 0035250321     PISSN: 09641726     EISSN: None     Source Type: Journal    
DOI: 10.1088/0964-1726/10/1/301     Document Type: Article

References (26)

1. Nguyen K and Chopra I 1990 Application of higher harmonic control to rotors operating at high speed and thrust J. Am. Helicopter Soc. 35 78-89
2. Wood E R, Powers R W, Cline C H and Hammond C E 1985 On developing and flight testing a higher harmonic control system J. Am. Helicopter Soc. 30 3-20
3. Ham N D 1987 Helicopter-individual blade control research at MIT 1977-1985 Vertica 11 109-22
4. Jacklin S A, Blaas A, Teves D and Kube R 1995 Reduction in helicopter BVI noise, vibration and power consumption through individual blade control Proc. 51st Ann. Forum of American Helicopter Society (Fort Worth, TX, May 1995)
5. Straub F K and Merkley D J 1996 Design of a servo-flap rotor for reduced control leads Smart Mater. Struct. 5 68-75
6. Chopra I 1997 Status of application of smart structures technology to rotorcraft systems Proc. Innovation in Rotorcraft Technology, Royal Aeronautical Society (London, June 25-26, 1997)
7. Samak D K and Chopra I 1993 A feasibility study to build a smart rotor: trailing-edge flap actuation Proc. SPIE Conf. on Smart Structures and Materials (Albuquerque, NM, February, 1993)
8. Walz C and Chopra I 1994 Design and testing of a helicopter rotor model with smart trailing edge flaps Proc. 35th AIAA Structures, Structural Dynamics and Materials Conf. Adaptive Structures Forum (Hilton Head, SC, April, 1994)
9. Ben-Zeev O and Chopra I 1996 Advances in the development of an intelligent helicopter rotor employing smart trailing-edge flaps Smart Mater. Struct. 5 11-25
10. Koratkar N A and Chopra I 1997 Analysis and testing of a Froude scaled rotor with piezoelectric bender actuated trailing-edge flaps J. Intell. Mater. Syst. Struct. 8 555-70
11. Koratkar N A and Chopra I 2000 Analysis and testing of a Mach scaled rotor with trailing-edge flaps AIAA J. 38 1113-24
12. Spangler R L and Hall S R Piezoelectric actuators for helicopter rotor control Proc. 31st AIAA/ASME/ASCE/AHS Structures, Structural Dynamics and Materials Conf. (Long Beach, CA, April, 1990)
13. Hall S R and Prechtl E F 1996 Development of a piezoelectric servoflap for helicopter rotor control Smart Mater. Struct. 5 26-34
14. Fulton M V and Ormiston R A 1997 Hover testing of a small-scale rotor with on-blade elevens Proc. 53rd Forum of the American Helicopter Society (Virginia Beach, VA, May, 1997)
15. Chen P C and Chopra I 1997 Development of a smart rotor blade with induced strain actuation of blade twist AIAA J. 35 6-16
16. Derham R C and Hagood N W 1996 Rotor design using smart materials to actively twist blades Proc. 52nd Ann. Forum of the American Helicopter Society (Washington, DC, June, 1996)
17. Rodgers J P and Hagood N W 1997 Design and manufacture of an integral-twist actuated rotor blade Proc. 38th AIAA/ASME/ASCE/AHS Structures, Structural Dynamics and Materials Conf. (Kissimmee, FL, April, 1997)
18. Bernhard A and Chopra I 1996 Development of a smart moving blade tip activated by a piezo induced bending-torsion coupled beam SPIE Conf. on Smart Structures and Integrated Systems (San Diego, CA, February, 1996)
19. Lee T and Chopra I 1998 Development of a smart rotor with piezo-stack actuation Proc. 1998 SPIE Symp. on Smart Structures and Materials (San Diego, CA, March, 1998)
20. Prechtl E F and Hall S R 1997 Design of a high efficiency discrete servo-flap actuator for helicopter rotor control Proc. 1997 SPIE Conf. on Smart Struct. (San Diego, CA, March, 1997)
21. Hall S R, Tzianetopoulou T, Straub F K and Ngo H T 2000 Design and testing of a double x-frame piezoelectric actuator Proc. 2000 SPIE Conf. on Smart Struct. (Newport Beach, CA, March 5-9, 2000)
22. Spencer M G, Sanner R and Chopra I 2000 Closed loop hover test results with a neuro-controller on a piezo-actuated trailing-edge flap blade Proc. 2000 SPIE Conf. on Smart Struct. (Newport Beach, CA, March 5-9, 2000)
23. Morgan Matroc Inc. 1999 Electro Ceramics Division Guide to piezoelectric ceramics Manufacturer's Data Sheet
24. Bir G and Chopra I University of Maryland Advanced Rotorcraft Code (UMARC) theory manual Technical Report UM-Aero 94-18, Center for Rotorcraft Education and Research, University of Maryland, College Park, MD 20740, USA
25. Milgram J H and Chopra I 1998 Rotors with trailing-edge flaps: analysis and comparison with experimental data J. Am. Helicopter Society 7 319-31
26. Hariharan N and Leishman J G 1996 Unsteady aerodynamics of a flapped airfoil in subsonic flow by indicial concepts J. Aircraft 33 855-68