In-Flight Measurement of Wing Surface Pressures on a Small-Scale UAV During Stall/Spin Maneuvers

Bunge, Roberto; Alkurdi, Abdul E.; Al-Faris, Eyas F.; Kroo, Ilan

doi:10.2514/6.2016-3652

Cited by 9 publications

(4 citation statements)

References 7 publications

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“…Advantage of having multiple location angle of attack sensors can also be found in stall control and evasion which was demonstrated by Bunge et al 22 The following flight shown in Figure 15 case can be divided into three phases. First phase represents partial stall of the right side of the wing as points 1 and 2 first reached stall limit.…”

Section: Flight Datamentioning

confidence: 99%

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Bioinspired wind field estimation—part 1: Angle of attack measurements through surface pressure distribution

Gavrilovic

Bronz

Moschetta

et al. 2018

International Journal of Micro Air Vehicles

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One of the major challenges of Mini-Unmanned Aerial Vehicle flight is the unsteady interaction with turbulent environment while flying in lower levels of atmospheric boundary layer. Following inspiration from nature we expose a new system for angle of attack estimation based on pressure measurements on the wing. Such an equipment can be used for real-time estimation of the angle of attack during flight or even further building of wind velocity vector with additional equipment. Those information can find purpose in control and stabilization of the aircraft due to inequalities seen by the wing or even for various soaring strategies that rely on active control for energy extraction. In that purpose, flying wing aircraft has been used with totally four span-wise locations for local angle of attack estimation. In-flight angle of attack estimation from differential pressure measurements on the wing has been compared with magnetic sensor with wind vane. The results have shown that pressure ports give more reliable estimation of angle of attack when compared to values given by wind vane attached to a specially designed air-boom. Difference in local angle of attack at four span-wise locations has confirmed spatial variation of turbulence in low altitude flight. Moreover, theoretical law of energy dissipation for wind components described by Kaimal spectrum has shown acceptable match with estimated ones.

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Section: Flight Datamentioning

confidence: 99%

“…Advantage of having multiple location angle of attack sensors can also be found in stall control and evasion which was demonstrated by Bunge et al. 22…”

Section: Analysis Of Experimental Datamentioning

confidence: 99%

Bioinspired wind field estimation—part 1: Angle of attack measurements through surface pressure distribution

Gavrilovic

Bronz

Moschetta

et al. 2018

International Journal of Micro Air Vehicles

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show abstract

“…In general, there are three main methods for measuring the distribution of aerodynamic pressure, the discrete pressure hole method [ 3 , 4 , 5 , 6 , 7 , 8 , 9 ], the pressure sensitive coating technology (PSP) [ 10 , 11 ], and the computational fluid dynamics (CFD) [ 12 , 13 , 14 , 15 ]. There are still many problems with these methods, both in the experimental measurement and theoretical analysis.…”

Section: Introductionmentioning

confidence: 99%

“…The discrete pressure hole method is complex and its computation intensive. Meanwhile, the measurement hole will also affect the aerodynamic shape of the aircraft [ 4 ]. PSP technology is a relatively new technique for measuring the aerodynamic pressure on the surface.…”

Section: Introductionmentioning

confidence: 99%

A Flexible Capacitive Pressure Sensor Based on Ionic Liquid

Yang

Wang

Qing

2018

Sensors

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A flexible microfluidic super-capacitive pressure sensor is developed to measure the surface pressure of a complex structure. The innovative sensor contains a filter paper filled with ionic liquid, and coated with two indium tin oxide polyethylene terephthalate (ITO-PET) films on the top and bottom, respectively. When external pressure is applied on the top ITO-PET film of the sensor mounted on the surface of an aircraft, the capacitance between the two ITO-PET films will change because of the deformation of the top ITO-PET film. The external pressure will be determined based on the change of the capacitance. Compared to the traditional pressure sensor, the developed sensor provides a high sensitivity of up to 178.5 nF/KPa and rapid dynamic responses for pressure measurement. Meanwhile, experiments are also conducted to study the influence of the thickness of the sensing film, sensing area, temperature, and humidity.

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A Model-free Flat Spin Recovery Scheme for Miniature Fixed-wing Unmanned Aerial Vehicle

Zhu

Líu

Ren

et al. 2019

2019 IEEE International Conference on Unmanned Systems (ICUS)

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In-Flight Measurement of Wing Surface Pressures on a Small-Scale UAV During Stall/Spin Maneuvers

Cited by 9 publications

References 7 publications

Bioinspired wind field estimation—part 1: Angle of attack measurements through surface pressure distribution

Bioinspired wind field estimation—part 1: Angle of attack measurements through surface pressure distribution

A Flexible Capacitive Pressure Sensor Based on Ionic Liquid

A Model-free Flat Spin Recovery Scheme for Miniature Fixed-wing Unmanned Aerial Vehicle

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