scholarly journals Noise‐control design problems of air cushion vehicles (ACV) and surface effect ships (SES)

1976 ◽  
Vol 60 (S1) ◽  
pp. S38-S38
Author(s):  
M. E. Dvornak
Keyword(s):  
Noise Control ◽  
Surface Effect ◽  
Control Design ◽  
Design Problems ◽  
Air Cushion ◽  
Air Cushion Vehicles

scholarly journals Chaotic Assessment of the Heave and Pitch Dynamics Motions of Air Cushion Vehicles

2021 ◽  
Vol 26 (2) ◽  
pp. 219-234
Author(s):  
A.S. Sowayan
Keyword(s):  
Degrees Of Freedom ◽  
Control Design ◽  
Design Parameters ◽  
Bernoulli’S Equation ◽  
Proposed Model ◽  
Frequency Domains ◽  
Air Cushion ◽  
Base Radius ◽  
Air Cushion Vehicles ◽  
Three Degrees Of Freedom

Abstract In this study, a three degrees of freedom nonlinear air cushion vehicle (ACV) model is introduced to examine the dynamic behavior of the heave and pitch responses in addition to the cushion pressure of the ACV in both time and frequency domains. The model is based on the compressible flow Bernoulli’s equation and the thermodynamics nonlinear isentropic relations along with the Newton second law of translation and rotation. In this study, the dynamical investigation was based on a numerical simulation using the stiff ODE solvers of the Matlab software. The chaotic investigations of the proposed model are provided using the Fast Fourier Transform (FFT), the Poincaré maps, and the regression analysis. Three control design parameters are investigated for the chaotic studies. These parameters are: ACV mass (M), the mass flow rate entering the cushion volume (ṁin ), and the ACV base radius (r). Chaos behavior was observed for heave, and pitch responses as well as the cushion pressure.

Discussion Notes for a Review of Progress in Design of Large SES

1975 ◽  
Vol 12 (03) ◽  
pp. 254-259
Author(s):  
W. F. Perkins
Keyword(s):  
High Speed ◽  
Surface Effect ◽  
Commercial Application ◽  
Considerable Effort ◽  
Technical Design ◽  
Design Problems ◽  
Technical Problems ◽  
The Past ◽  
Design Solutions ◽  
Near Term

These notes are prepared to highlight some of the points in a review of progress in the development of oceangoing surface effect ships over the past ten years. In 1965, considerable interest was generated with respect to the application of large—more than 4000-tons—SES in ocean commerce. Since that time, considerable effort has been devoted to addressing the technical design problems associated with such ships. Emphasis has shifted in the near term to a military ship of about 2000-tons gross weight. Nonetheless, many of the design solutions to technical problems at the 2000-ton size are applicable to any large, high-speed SES. Thus, progress and success in the Navy programs can lead eventually to commercial application of SES.

The Hovertruck — 1

1963 ◽  
Vol 67 (636) ◽  
pp. 755-756 ◽  
Author(s):  
A. E. Bingham
Keyword(s):  
Basic Work ◽  
Air Cushion ◽  
Air Cushion Vehicle ◽  
Air Cushion Vehicles

The phrase “Air-Cushioned Vehicle” describes the complete range of vehicles which obtain some or all of their support from a free pressurised cushion of air contained between the vehicle and the ground.Vickers’ interest in air cushion vehicles stems directly from the basic work carried out on the Hovercraft—one type of air cushion vehicle—by Mr. C. S. Cockerell and the initiative and encouragement displayed by the N.R.D.C. through its subsidiary Hovercraft Development Ltd.

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