Results 1 to 10 of about 15,079 (215)

Road to Acquisition: Preparing a MEMS Microphone Array for Measurement of Fuselage Surface Pressure Fluctuations [PDF]

open access: yesMicromachines, 2021
Preparing and pre-testing experimental setups for flight tests is a lengthy but necessary task. One part of this preparation is comparing newly available measurement technology with proven setups.
Thomas Ahlefeldt   +4 more
doaj   +2 more sources

Low-Interference Wind Tunnel Measurement Technique for Pitch Damping Coefficients at Transonic and Low Supersonic Mach Numbers

open access: yesAerospace, 2022
An experimental method for the determination of the pitch damping moment coefficient sum Cmq+Cmα˙ in a wind tunnel at transonic and low supersonic Mach numbers is developed.
Christian Franzmann   +2 more
doaj   +3 more sources

Multidimensional Vibration Suppression Method with Piezoelectric Control for Wind Tunnel Models [PDF]

open access: yesSensors, 2019
In wind tunnel tests, the low-frequency and large-amplitude vibration of the cantilever sting result in poor test data in pitch plane and yaw plane, more seriously, even threatens the safety of wind tunnel tests.
Mengde Zhou   +6 more
doaj   +2 more sources

Structural and Aeroelastic Studies of Wing Model with Metal Additive Manufacturing for Transonic Wind Tunnel Test by NACA 0008 Example

open access: yesAerospace, 2021
Additive manufacturing (AM) technology has a potential to improve manufacturing costs and may help to achieve high-performance aerospace structures. One of the application candidates would be a wind tunnel wing model.
Natsuki Tsushima   +3 more
doaj   +1 more source

Receptivity and Stability Theory Analysis of a Transonic Swept Wing Experiment

open access: yesAerospace, 2023
Surface suction provides an efficient way to delay boundary layer transitions. In order to verify the suction effects and determine the mechanism of suction control in transonic swept wing boundary layers, wind tunnel transition measurements in a hybrid ...
Yuanqiang Liu   +4 more
doaj   +1 more source

Flutter test of rudder with real servo actuator in continuous transonic wind tunnel

open access: yesXibei Gongye Daxue Xuebao, 2022
Flutter wind tunnel test is an important approach of investigation of transonic flutter characteristics of flight vehicle. Comparing with the blow-down wind tunnel, the long-running and low dynamic pressure capabilities of continuous transonic wind ...
HAN Jiangxu   +5 more
doaj   +1 more source

Integrated Numerical Simulation Research of High-speed Section in Transonic Wind Tunnel

open access: yesHangkong gongcheng jinzhan, 2020
For civil aviation aircraft with high subsonic economic cruising and fighter with high maneuverability at transonic speed, their demand for high-performance transonic wind tunnels is becoming more and more urgent, and integrated numerical simulation ...
YANG Xiaochuan   +5 more
doaj   +1 more source

Numerical Investigation on a Porous Wall Model for the Transonic Wall Interference

open access: yesHangkong gongcheng jinzhan, 2021
Flows passing a wide-body aircraft at cruising, drag divergence or diving status are transonic. When the aircraft model is tested in a transonic wind tunnel, strong shock waves may be induced due to the tunnel wall and the model, and incur complex ...
MOU Bin   +4 more
doaj   +1 more source

Research on High Brightness Light Source Equipment for Wind Tunnel Test [PDF]

open access: yesMATEC Web of Conferences, 2019
The experimental technology of high brightness light source was studied in sub-transonic supersonic wind tunnel. The elevation light source should be installed on the smooth wall of the tunnel, and the elevation camera should be installed in the safe ...
Fei XUE   +3 more
doaj   +1 more source

Relativity Research of Total Pressure and Regulating Valve in Continuous Wind Tunnel and Its Application

open access: yesXibei Gongye Daxue Xuebao, 2020
As the main adjusting means of the total pressure for the continuous transonic wind tunnel, the characteristics of regulating valve directly affect the flow field performance of the wind tunnel, therefore, it is important to analyze and establish the ...

doaj   +1 more source

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