Analysis of a bending-torsion coupled actuator for a smart rotor with active blade tips

Smart Materials and Structures

Volumn 10, Issue 1, 2001, Pages 35-52

  Bernhard, Andreas P F ^a   Chopra, Inderjit ^a  

^a UNIVERSITY OF MARYLAND   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACTUATORS; ASPECT RATIO; BENDING STRENGTH; MACHINE VIBRATIONS; MATHEMATICAL MODELS; TORSIONAL STRESS;

ACTIVE BLADE TIPS; ONE DIMENSIONAL FINITE BEAM ELEMENT; SMART ROTOR;

HELICOPTER ROTORS;

EID: 0035248808     PISSN: 09641726     EISSN: None     Source Type: Journal    
DOI: 10.1088/0964-1726/10/1/304     Document Type: Article

References (57)

1. Wood E, Powers R, Cline C and Hammond C 1985 On developing and flight testing a higher harmonic flight control system J. Am. Helicopter Soc. 30 3-20
2. Shaw J, Albion N, Hanker E and Teal R 1989 Higher harmonic control: wind tunnel demonstration of fully effective vibratory hub forces suppression J. Am. Helicopter Soc. 34 14-25
3. Nixon M W, Kvaternik R G and Settle T B 1998 Tiltrotor vibration reduction through higher harmonic control J. Am. Helicopter Soc. 43 235-45
4. Ham N D 1987 Helicopter-individual blade control research at MIT 1977-1985 Vertica 11 109-22
5. Crawley E and de Luis J 1987 Use of piezoelectric actuators as elements of intelligent structures AIAA J. 25 1373-85
6. Ormiston R A 1991 Can smart materials make helicopters better? University of Maryland/Army Research Office Workshop on Dynamics and Aeroelastic Stability Modeling of Rotorcraft Systems (College Park, MD, November 1991)
7. Chopra I 1993 Development of a smart rotor Proc. 19th Eur. Rotorcraft Forum (Cernobbio, Italy, September 1993)
8. Straub F K 1993 A feasibility study of using smart materials for rotor control Proc. 49th Am. Helicopter Soc: Forum (St Louis, MS, May 1993) pp 1321-34
9. Chopra I 1997 Status of application of smart structures technology to rotorcraft systems R. Aeronaut. Soc. Innovations in Rotorcraft Technology Conf. (London, June 1997)
10. Fulton M and Ormiston R A 1998 Small-scale rotor experiments with on-blade elevons to reduce blade vibratory loads in forward flight Proc. 54th Am. Helicopter Soc. Forum (Washington, DC, May 1998)
11. Koratkar N A and Chopra I 2000 Hover testing of a Mach-scaled rotor with trailing-edge flaps Proc. SPIE Symp. on Smart Structures and Materials, Conf. on Smart Structures and Integrated Systems (Newport Beach, CA, March 2000)
12. Koratkar N A and Chopra I 2000 Windtunnel testing of a Mach-scaled rotor with trailing-edge flaps Proc. 56th Am. Helicopter Soc. Forum (Virginia Beach, VA, May 2000)
13. Straub F K and Charles B D 1999 Comprehensive modeling of rotors with trailing edge flaps Proc. 55th Am. Helicopter Soc. Forum (Montreal, Canada, May 1999)
14. Prechtl E F and Hall S R 2000 Closed-loop vibration control experiments on a rotor with blade mounted actuation Proc. 41st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conf. and AIAA/ASME/AHS Adaptive Structures Forum (Atlanta, GA, April 2000) Paper AIAA-2000-1714
15. Lee T and Chopra I 1999 Development and validation of a refined piezostack-actuated trailing-edge flap actuator for a helicopter rotor Proc. SPIE Symp. on Smart Structures and Materials, Conf. on Smart Structures and Integrated Systems (Newport Beach, CA, March 1999)
16. Jänker P, Klöppel V, Hermle F, Lorkowski T, Storm S, Christmann M and Wettemann M 1999 Development and evaluation of a hybrid piezoelectric actuator for advanced flap control technology Proc. 25th Eur. Rotorcraft Forum (Rome, Italy, September 1999) Paper G-21
17. Bernhard A P and Chopra I 1999 Trailing edge flap activated by a piezo-induced bending-torsion coupled beam J. Am. Helicopter Soc. 44 3-15 (1996 AHS Lichten Award Paper)
18. Bothwell C, Chandra R and Chopra I 1995 Torsional actuation with extension-torsional composite coupling and magnetostrictive actuators AIAA J. 33 723-9
19. Giurgiutiu V, Rogers C A and McNeil S 1997 Static and dynamic testing of large-amplitude rotary induced-strain (Laris Mk2) actuator J. Intell. Mater. Syst. Struct. 8 502-12
20. Koratkar N A and Chopra I 1999 Analysis and testing of a Mach scaled rotor model with piezoelectric bender actuated trailing-edge flaps Proc. 40th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conf. and AIAA/ASME/AHS Adaptive Structures Forum (St Louis, MO, April 1999) pp 2380-402
21. Clement J W, Brei D and Barrett R 1999 Wind tunnel testing of a high authority, airspeed insensitive, rotor blade flap Proc. 40th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conf. and AIAA/ASME/AHS Adaptive Structures Forum (St Louis, MO, April 1999) pp 2414-24
22. Millott T and Friedmann P 1994 Vibration Reduction in Helicopter Rotors Using an Actively Controlled Partial Span Trailing Edge Flap Located on the Blade (NASA, June 1994) (Washington, DC: NASA) NASA Contract Report NASA-CR-4611
23. Milgram J and Chopra I 1998 A parametric design study for actively controlled flaps J. Am. Helicopter Soc. 43 110-19
24. Spencer M G, Sanner R M and Chopra I 1999 Adaptive neurocontrol of simulated rotor vibrations using trailing edge flaps J. Intell. Mater. Syst. Struct. at press
25. Spencer M G 2000 Development of a real time adaptive neural network controller for active rotorcraft vibration reduction PhD Dissertation Aerospace Department, University of Maryland
26. Chen P C and Chopra I 1997 Wind tunnel test of a smart rotor model with individual blade twist control J. Intell. Mater. Syst. Struct. 8 414-25
27. Rodgers J P and Hagood N W 1998 Preliminary Mach-scale hover testing of an integral twist-actuated rotor blade Proc. SPIE Symp. on Smart Structures and Materials, Conf. on Smart Structures and Integrated Systems (San Diego, CA, March 1998) pp 291-308
28. Wilkie W K, Wilbur M L, Mirick P H, Cesnik C E and Shin S 1999 Aeroelastic analysis of the NASA/ARMY/MIT active twist rotor Proc. 55th Am. Helicopter Soc. Forum (Montreal, Canada, May 1999)
29. Wilbur M L, Yeager W T, Wilkie W K, Cesnik C E and Shin S 2000 Hover testing of the NASA/ARMY/MIT active twist prototype blade Proc. 56th An. Helicopter Soc. Forum (Virginia Beach, VA, May 2000)
30. Büter A 1998 Untersuchung adaptiver Konzepte zur Reduktion von Hubschraubervibrationen, zur Minderung des Hubschrauberlärms und zur Steigerung der aerodynamischen Effizienz PhD Thesis Deutsches Zentrum für Luft- und Raumfahrt e.V.
31. Chopra I 1983 Dynamic analysis of constant-lift and free-tip rotors J. Am. Helicopter Soc. 28 24-33
32. Stroub R H, Young L A, Keys C and Cawthorne M 1985 Free-tip-rotor wind tunnel results Proc. 41st Am. Helicopter Soc. Forum (Ft Worth, TX, May 1985)
33. Bernhard A P and Chopra I 1998 Hover testing of active rotor blade tips using a piezo-induced bending-torsion coupled beam J. Intell. Mater. Syst. Struct. 9 963-74
34. Bernhard A P and Chopra I 2000 Hover test of a Mach-scale rotor-model with active blade tips Proc. 56th Am. Helicopter Soc. Forum (Virginia Beach, VA, May 2000)
35. Bernhard A P 2000 Smart helicopter rotor with active blade tips PhD Dissertation Aerospace Department, University of Maryland
36. Prechtl E F and Hall S R 1999 Design of a high efficiency, large stroke, electromechanical actuator Smart Mater. Struct. 8 13-30
37. Chandra R and Chopra I 1993 Structural modeling of composite beams with induced strain actuators AIAA J. 31 1692-701
38. Vlasov V 1961 Thin-Walled Elastic Beams (Washington, DC: National Science Foundation and US Department of Commerce)
39. Bernhard A P and Chopra I 1998 Hover testing of an active rotor blade tip and structural analysis of the actuator beam Proc. 39th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conf. and AIAA/ASME/AHS Adaptive Structures Forum, (Longbeach, CA, April 1998) pp 3299-325
40. Reissner E and Stein M 1951 Torsion and Transverse Bending of Cantilever Plates (Langley Field, VA: Langley Aeronautical Laboratory) NACA Technical Note NACA-TN-2369
41. 1987 IEEE standard on piezoelectricity ANSI/IEEE Std 176-1987
42. Tiersten H 1969 Linear Piezoelectric Plate Vibrations (New York: Plenum)
43. Heylinger P R, Pei K and Saravanos D A 1996 Layerwise mechanics and finite element model for laminated piezoelectric shells AIAA J. 34 2353-60
44. Sirohi J and Chopra I 1998 Investigations on piezoceramic actuator response Proc. SPIE Symp. on Smart Structures and Materials, Conf. on Smart Structures and Integrated Systems (San Diego, CA, March 1998) pp 626-46
45. Morgan Matroc, Inc. (Electro Ceramics Division) 1997 Guide to Modern Piezoceramic Ceramics (Bedford, OH: Morgan Matroc)
46. Ghandi K and Hagood N W 1997 A hybrid finite element model for phase transitions in nonlinear electro-mechanically coupled material Proc. SPIE Symp. on Smart Structures and Materials, Conf. on Mathematics and Control of Smart Structures (San Diego, CA, March 1997) pp 97-112
47. Park C, Walz C and Chopra I 1996 Bending and torsion models of beams with induced strain actuators Smart Mater. Struct. 5 98-113
48. Gjelsvik A 1981 The Theory of Thin Walled Bars (New York: Wiley)
49. Floras M W and Smith E C 1997 Finite element modeling of open-section composite beams with warping restraint effects AIAA J. 35 1341-7
50. Murray N 1984 Introduction to the Theory of Thin-Walled Structures (Oxford: Oxford University Press)
51. Jensen D and Crawley E 1984 Frequency determination techniques for cantilevered plates with bending-torsion coupling AIAA J. 22 415-20
52. Hong C and Chopra I 1999 Modeling and validation of induced strain actuation of composite plates AIAA J. 37 372-7
53. Hercules 1997 Magnamite graphite prepreg tape AS4/3501-6 Product Data Sheet: No 843-1
54. Crawley E and Lazarus K 1991 Induced strain actuation of isotropic and anisotropic plates AIAA J. 29 944-51
55. Prechtl E F and Hall S R 1997 Design of a high efficiency discrete servo-flap actuator for helicopter rotor control Proc. SPIE Symp. on Smart Structures and Materials, Conf. on Smart Structures and Integrated Systems (San Diego, CA, March 1997)
56. Lutz M and Hagood N W 1999 Actuation efficiency in piezoelectrically driven linear and nonlinear systems Proc. SPIE Symp. on Smart Structures and Materials, Conf. on Smart Structures and Integrated Systems (Newport Beach, CA, March 1999) pp 780-96
57. Bernhard A P and Chopra I 1999 Mach-scale design of a rotor-model with active blade tips Proc. 55th Am. Helicopter Soc. Forum (Montreal, Canada, May 1999) pp 579-98