On the Computation of Airloads Acting on Rotor Blades in Forward Flight

Miller, R. H.

doi:10.4050/jahs.7.56

Cited by 24 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[36][37][38][39][40][41][42][43][44] and Raymond A. Piziali and Frank A. DuWaldt of CAL (Refs. [45][46][47][48][49][50].…”

Section: Airloads and Wakesmentioning

confidence: 99%

Milestones in Rotorcraft Aeromechanics Alexander A. Nikolsky Honorary Lecture

Johnson¹

2011

J Am Helicopter Soc

View full text Add to dashboard Cite

The subject of this paper is milestones in rotorcraft aeromechanics. Aeromechanics covers much of what the engineer needs: performance, loads, vibration, stability, flight dynamics, and noise. These topics cover many of the key performance attributes, and many of the often-encountered problems in rotorcraft designs. A milestone is a critical achievement, a turning point, an event marking a significant change or stage in development. The milestones identified and discussed include the beginnings of aeromechanics with autogyro analysis, ground resonance, aeromechanics books, unsteady aerodynamics and airloads, nonuniform inflow and wakes, beams and dynamics, comprehensive analysis, computational fluid dynamics, and rotor airloads tests. The focus on milestones limits the scope of the history, but allows the author to acknowledge his choices for key steps in the development of the science and engineering of rotorcraft.

show abstract

“…[36][37][38][39][40][41][42][43][44] and Raymond A. Piziali and Frank A. DuWaldt of CAL (Refs. [45][46][47][48][49][50].…”

Section: Airloads and Wakesmentioning

confidence: 99%

Milestones in Rotorcraft Aeromechanics Alexander A. Nikolsky Honorary Lecture

Johnson¹

2011

J Am Helicopter Soc

View full text Add to dashboard Cite

show abstract

“…Consequently a simpler method was developed in ref. 16 in which e was chosen so that the lift deficiency and phase shift predicted by the simple lifting line theory developed above would be the same as that predicted by the equivalent lifting surface theory, for example by F and G of Ref. 21.…”

Section: Lifting Line Approximations To the Unsteady Aerodynamic Effectsmentioning

confidence: 99%

“…The bound vortex strength is in turn expressed in terms of the downwash and the blade pitch angle. The n resulting simultaneous equations are then solved for the downwash (16) .…”

Section: Appendixmentioning

confidence: 99%

“…^= _^x^a 7 T X / +^7 F^' • (3) This expression should be integrated with respect to I over each finite interval of the blade before integrating with respect to <p< 15 ' 16) .…”

Section: Appendixmentioning

confidence: 99%

“…Some of the results of this study were presented in Refs. 15,16, and 17. The programme is a continuing one and the discussion that follows is based on our present interpretation of the results obtained up to the present time.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Unsteady Air Loads on Helicopter Rotor Blades

Miller

1964

J. R. Aeronaut. Soc.

Self Cite

View full text Add to dashboard Cite

An appropriate introduction to the topic of this lecture is the following comment taken from Cierva's third and last lecture presented before this Society in 1935:“Perhaps the most irritating of the secondary difficulties met with in the Autogiro development have been those of a dynamical nature. The dissymmetry of speed on both sides of the rotor produces periodical variations in the lift and drag…“The Fourth Cierva Memorial Lecture, which it is my privilege to present, is concerned with these periodic variations and their contribution to what remains one of the most irritating problems in rotary wing design.

show abstract

Theoretical study on two-dimensional aerodynamic characteristics of unsteady wings

Azuma

Okamoto²

2005

Journal of Theoretical Biology

View full text Add to dashboard Cite

On the Computation of Airloads Acting on Rotor Blades in Forward Flight

Cited by 24 publications

References 0 publications

Milestones in Rotorcraft Aeromechanics Alexander A. Nikolsky Honorary Lecture

Milestones in Rotorcraft Aeromechanics Alexander A. Nikolsky Honorary Lecture

Unsteady Air Loads on Helicopter Rotor Blades

Theoretical study on two-dimensional aerodynamic characteristics of unsteady wings

Contact Info

Product

Resources

About