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Ahmed Khalifa
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Journal Articles

Consensus-Based Cooperative Formation Control for Multiquadcopter System With Unidirectional Network Connections

Toru Namerikawa, Yasuhiro Kuriki, Ahmed Khalifa
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Technical Briefs
J. Dyn. Sys., Meas., Control. April 2018, 140(4): 044502.
Paper No: DS-16-1224
https://doi.org/10.1115/1.4038375
Published Online: December 14, 2017
View Article titled, Consensus-Based Cooperative Formation Control for Multiquadcopter System With Unidirectional Network Connections
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Topics: Control algorithms, Simulation, Unmanned aerial vehicles, Algorithms, Stability, Aircraft, Modeling, Eigenvalues, Routh–Hurwitz stability criterion
Journal Articles

An Experimental Study of Flow-Induced Vibration and the Associated Flow Perturbations in a Parallel Triangular Tube Array

Ahmed Khalifa, David Weaver, Samir Ziada
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Technical Forum
J. Pressure Vessel Technol. June 2013, 135(3): 030904.
Paper No: PVT-12-1070
https://doi.org/10.1115/1.4023427
Published Online: May 21, 2013
View Article titled, An Experimental Study of Flow-Induced Vibration and the Associated Flow Perturbations in a Parallel Triangular Tube Array
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Topics: Flow (Dynamics), Vibration, Turbulence
Proceedings Papers

An Experimental Study of the Phase Lag Causing Fluidelastic Instability in Tube Bundles

Ahmed Khalifa, David Weaver, Samir Ziada
Proc. ASME. PVP2011, Volume 4: Fluid-Structure Interaction, 211-218, July 17–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: PVP2011-57263
https://doi.org/10.1115/PVP2011-57263
View Paper titled, An Experimental Study of the Phase Lag Causing Fluidelastic Instability in Tube Bundles
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Topics: Aluminum tube, Convection, Damping, Delays, Drag (Fluid dynamics), Flow (Dynamics), Flow separation, Fluids, Heat exchangers, Pressure transducers
Proceedings Papers

Experimental Study of Fluidelastic Instability in a Parallel Triangular Tube Array

Ahmed Khalifa, David Weaver, Samir Ziada
Proc. ASME. FEDSM2010, ASME 2010 7th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, and Flow-Induced Vibration and Noise: Volume 3, Parts A and B, 375-382, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-30029
https://doi.org/10.1115/FEDSM-ICNMM2010-30029
View Paper titled, Experimental Study of Fluidelastic Instability in a Parallel Triangular Tube Array
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Topics: Cross-flow, Damping, Failure mechanisms, Fluids, Heat exchangers, Hydraulic couplings, Stability, Stiffness
Proceedings Papers

Fluidelastic Instability of a Single Flexible Tube in a Rigid Tube Array

Ahmed Khalifa, David Weaver, Samir Ziada
Proc. ASME. FEDSM2010, ASME 2010 7th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, and Flow-Induced Vibration and Noise: Volume 3, Parts A and B, 383-394, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-30030
https://doi.org/10.1115/FEDSM-ICNMM2010-30030
View Paper titled, Fluidelastic Instability of a Single Flexible Tube in a Rigid Tube Array
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Topics: Excitation, Failure, Fluid structure interaction, Geometry, Heat exchangers, Nuclear power stations, Shells, Stability, Vibration