Results 61 to 70 of about 127,528 (211)

Flutter Speed Limits of Cantilever Rectangular and Tapered Plates

Al-Khawarizmi Engineering Journal, 2007
The aerodynamic and elastic forces may cause an oscillation of the structure such as the high frequency of the airfoil surfaces and the dynamic instability occurring in an aircraft in flight and failure may occur at a speed called flutter speed.
Kusay H. Jabir
doaj   +2 more sources

Effects of winglet on transonic flutter characteristics of a cantilevered twin-engine-transport wing model [PDF]

A transonic model and a low-speed model were flutter tested in the Langley Transonic Dynamics Tunnel at Mach numbers up to 0.90. Transonic flutter boundaries were measured for 10 different model configurations, which included variations in wing fuel ...
Bhatia, K. G., Nagaraja, K. S., Ruhlin, C. L.   +2 more
core   +1 more source

Long-term results of catheter radiofrequency ablation of cavotricuspid isthmus in patients with typical atrial flutter and diabetes mellitus type 2

RUDN Journal of Medicine, 2016
Aim - to evaluate the effectiveness of radiofrequency ablation cavotricuspid of the isthmus in patients with diabetes mellitus (DM) type 2, and typical atrial flutter, as well as to identify the factors of recurrence of atrial flutter after the procedure.
Yu A Kachanova, N A Novikova, A L Syrkin
doaj  

Status and future plans of the Drones for Aerodynamic and Structural Testing (DAST) program [PDF]

Results from flight tests of the ARW-1 research wing are presented. Preliminary loads data and experiences with the active control system for flutter suppression are included along with comparative results of test and prediction for the flutter boundary ...
Murrow, H. N.
core   +1 more source

Set Membership Strategy for Closed Loop Aircraft Flutter Controller Design

IEEE Access
We consider the problem of set membership identification and control for closed loop aircraft flutter platform within the practical case of bounded noise.
Liu Yunhong, Wang JIanhong
doaj   +1 more source

Multifunction tests of a frequency domain based flutter suppression system [PDF]

The process is described of analysis, design, digital implementation, and subsonic testing of an active control flutter suppression system for a full span, free-to-roll wind tunnel model of an advanced fighter concept.
Adams, William M., Jr., Christhilf, David M.   +1 more
core   +1 more source

A Bidirectional Tuned Mass Damper for Flutter Suppression in Ultra-Large Offshore Wind Turbine Flexible Blades

Journal of Marine Science and Engineering
As onshore space resources become exhausted, the migration of wind turbines to offshore areas is an inevitable trend. The blades of offshore wind turbines are typically over 100 m long, and this increased nonlinearity in the blades escalates the risk of ...
Weiliang Liao, Mingming Zhang, Jianjun Yang, Youhua Fan, Tianlun Du, Yanfei Deng   +5 more
doaj   +1 more source

Experimental Classical Flutter Reesults of a Composite Advanced Turboprop Model [PDF]

Experimental results are presented that show the effects of blade pitch angle and number of blades on classical flutter of a composite advanced turboprop (propfan) model.
Kaza, K. R. V., Mehmed, O.
core   +1 more source

Pseudoventricular Flutter [PDF]

Baylor University Medical Center Proceedings, 2007
D Luke, Glancy, Brent J, Rochon, Fred Henry, Rodriguez, April A, Sandifer   +3 more
openaire   +2 more sources

Flutter of panels on discrete flexible supports [PDF]

The supersonic flutter of wide panels on discrete flexible supports is investigated for three different panel-support configurations. The first study examines the effect of support stiffness on the flutter behavior of a specific five-support ...
Stein, M.
core   +1 more source