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Articles:2022,Vol:27,Issue(1):18-28 |
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Citation: |
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JING Zhiwei. Interesting Beat Phenomenon for Airfoil[J]. International Journal of Plant Engineering and Management, 2022, 27(1): 18-28 |
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| Interesting Beat Phenomenon for Airfoil |
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| JING Zhiwei |
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| General Configuration and Aerodynamics Design Department, Xi'an Aircraft Design Institute, Xi'an 710089, China |
| Abstract: |
| The airfoil with two degrees is simulated to get the beat phenomenon.The results indicate that the occurrence of beat phenomenon is very sensitive to the equivalent frequency and damping,contributed by the structural and aerodynamic ones.Only the equivalent damping approaches to zero and the equivalent frequency is very close to the gust frequency which the beat phenomenon occurs. |
| Key words:
beat phenomenon
aeroelasticity
gust
flutter
airfoil
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| Received: 2021-09-18
Revised:
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| DOI: 10.13434/j.cnki.1007-4546.2022.0102 |
| Corresponding author:
Email： |
| Author description:
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References: |
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[1] SWAROOP K Y, AHSAN K. Beat phenomenon in combine structure-liquid damper systems[J]. Engineering Structures, 2001,23:622-630
[2] TANG D, DOWELL E H. Experimental and theoretical study on aeroelastic response of high-aspect-ratio wings[J]. AIAA Journal, 2001,39(8):1430-1441
[3] SU W H, CESNIK R E S. Nonlinear aeroelasticity of a very flexible blended-wing-body aircraft[J]. Journal of Aircraft, 2010,47(5):1539-1553
[4] GÉRADIN M, RIXEN D J. Mechanical vibrations:theory and application to structural dynamics[M]. Sussex:Wiley, 2015:77-81 |
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