Download or read book HYDRODYNAMICS AND STABILITY AND CONTROL OF A TANDEM PROPELLER SUBMARINE written by and published by . This book was released on 1962 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrodynamic and stability and control characteristics are investigated for a novel submarine configuration employing tandem, large hub-to-diameter ratio propellers whose blades are pitched collectively and cyclicly. Stability coefficients for the hull and the propeller are derived. Expressions for the control forces and moments generated by the propellers are developed and the perturbation equations of motion are used to analyze the controlled dynamic of the submarine. An analysis of the motions in the vertical plane indicates that the submarine can be stabilized at high speeds by automatic control of collective and cyclic pitch and that reasonable maneuverability can be obtained.

Download or read book The Hydrodynamics and Stability Control Tandem Propeller Submarine Phase Ii written by E. Schroeder and published by . This book was released on 1963 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrodynamic and stability and control character istics are investigated for a novel submarine configuration employing tandem, large hub-to-tip diameter ratio propellers, the blades of which can be pitched both collectively and cyclicly. Earlier analyses, using combined blade element and momentum theory to describe the forces and moments produced by the propellers, are refined and extended to include the effect of cyclic pitch on propeller-induced inflow. A preliminary analysis of shrouded propeller hydrodynamics is included. Stability and control is investigated for Tandem Propeller Submarine (TPS) operation over the forward speed range from 0 to 40 ft/sec with both propellers thrusting. Low-speed oper ation is also investigated with one propeller thrusting and one counter-thrusting. Automatic control techniques for improving the stability and control characteristics of the TPS are pre sented. (Author).

Download or read book First interim Report on the Hydrodynamics and Stability and Control of a Tandem Propeller Submarine written by Cornell Aeronautical Laboratory and published by . This book was released on 1962 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book HYDRODYNAMICS AND STABILITY AND CONTROL OF A TANDEM PROPELLER SUBMARINE EQUIPMENT DESIGN FOR A TANDEM PROPELLER SUBMARINE FREE RUNNING MODEL written by and published by . This book was released on 1964 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report contains information on the design, installation, and interconnections of equipment used in the freerunning model test program. Emphasis is placed on describing those portions of the system designed and assembled by CAL for these specific tests and for which information is not elsewhere available. Where possible, reference is made to prior publications for descriptions of equipment which was supplied with the model (e. g., the propeller and blade actuator servomechanisms) or which was used in unmodified form for remote control demonstrations (e. g., the Conalog). Certain changes in the supplied equipment, as used in earlier captive tests of the model, were made for compatibility with units introduced into the system for free-running tests and these changes are noted where applicable.

Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrodynamics of Ship Propellers written by John P. Breslin and published by Cambridge University Press. This book was released on 1994 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical introduction to ship propeller hydrodynamics, for researchers in ocean technology, naval architecture, mechanical engineering.

Download or read book On the Stability and Manual Controllability of the Tandem Propeller Submarine written by R. C. McLane and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manual controllability of a six-degree-of-free dom vehicle was invted. Study, analysis, and experimental testing were used to demonstrate controllability and to determine requirements for control inputs, information display, and con trol coupling (and decoupling) when the vehicle is a tandem-propeller submarine. A control station mockup, including a six-degree-of-freeddom input control and a contact analog display (with quickened perspective tracking symbol), was com bined with an analog computer simulation of a tendem-propeller submarine to provide real-time tests of controllability performance using naive male subjects. (Author).

Download or read book Hydrodynamics of the 190 ton Stable Semisubmerged Platform SSP written by T. G. Lang and published by . This book was released on 1974 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The form, hydrodynamic design, and predicted performance of the 190-ton Stable Semisubmerged Platform (SSP) are described and analyzed. Design criteria are presented for the twin submerged hulls, four surface-piercing struts, bow section of the above-water cross structure, aft stabilizing fin and flaps, forward-mounted canard control surfaces, rudders, and the controllable and reversible propellers. Hydrodynamic loads and motion in waves are analyzed. The overall design is evaluated in light of design experience, model test results, and preliminary operating experience with the 190-ton SSP. The 190-ton SSP is shown to have significantly reduced motion in waves, increased rough-water speed and more deck space and internal volume than conventional monohulls. (Author).

Download or read book Keywords Index to U S Government Technical Reports written by and published by . This book was released on 1962 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1964 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Keywords Index to U S Government Technical Reports permuted Title Index written by United States. Department of Commerce. Office of Technical Services and published by . This book was released on 1962 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report David W Taylor Model Basin written by David W. Taylor Model Basin and published by . This book was released on 1964 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transportation Research written by Cornell Aeronautical Laboratory and published by . This book was released on 1965 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental Studies of Tandem Propeller Performance at Static Conditions written by Roy S. Rice and published by . This book was released on 1968 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Practical Ship Hydrodynamics written by Volker Bertram and published by Elsevier. This book was released on 2012 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical Ship Hydrodynamics provides a comprehensive overview of hydrodynamic experimental and numerical methods for ship resistance and propulsion, maneuvering, seakeeping and vibration. Beginning with an overview of problems and approaches, including the basics of modeling and full scale testing, expert author Volker Bertram introduces the marine applications of computational fluid dynamics and boundary element methods. Expanded and updated, this new edition includes: Otherwise disparate information on the factors affecting ship hydrodynamics, combined to provide one practical, go-to resource. Full coverage of new developments in computational methods and model testing techniques relating to marine design and development. New chapters on hydrodynamic aspects of ship vibrations and hydrodynamic options for fuel efficiency, and increased coverage of simple design estimates of hydrodynamic quantities such as resistance and wake fraction. With a strong focus on essential background for real-life modeling, this book is an ideal reference for practicing naval architects and graduate students.

Download or read book Proceedings of OECON written by and published by . This book was released on 1968 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: