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Transactions of the American Institute of Electrical Engineers, Part II: Applications and Industry

Issue 5 • Date Nov. 1961

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Displaying Results 1 - 12 of 12
  • The effect of variable plasma conductivity on MHD energy converter performance

    Publication Year: 1961, Page(s):225 - 231
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2046 KB)

    THE CONCEPT OF a magnetohydrodynamic (MHD) energy converter presents a means of converting some of the kinetic and thermal energy of a plasma directly into useful electrical work. The principle upon which its operation is based is that of passing a moving plasma through a transverse magnetic field, thereby inducing an electromotive force (emf) in the plasma. By completing the circuit through an ex... View full abstract»

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  • The economic justification of railway electrification in the united states

    Publication Year: 1961, Page(s):232 - 238
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2265 KB)

    NUMEROUS RAILROADS in the United States are in economc distress. This paper presents a modern technological package, including railway electrification, which will permanently lower a large segment of their operating and maintenance costs. Their current competitive economic situation is outlined and their position is reviewed. The poor earnings of the railroads in the northeast sector ¿ ICC (Inter... View full abstract»

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  • On the optimum synthesis of random sampling multipole filters with stationary inputs

    Publication Year: 1961, Page(s):239 - 247
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2067 KB)

    IN MANY practical engineering problems the sampling intervals for the system are not fixed. They are actually random variables. For example, in radar with nominal scanning period T, occasionally some samples of the return signals are absent because of noise or other interference. It is referred to as the ¿missed sample¿ problem in radar. View full abstract»

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  • Sampled-data control systems with transport lag by mitrovi¿¿'s algebraic method

    Publication Year: 1961, Page(s):247 - 252
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1619 KB)

    TRANSPORT LAG in sampled-data control systems influences their stability. If this influence is studied as the function of transport lag and other system parameters, the design procedure becomes cumbersome. This paper, which applies Mitrovi¿¿'s algebraic method,1¿¿3 presents a new way to analyze and synthesize various sampled-data control systems such as the cyclic variable-rate, multirate, and tho... View full abstract»

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  • Mathematical models for time-domain design of electrohydraulic servomechanisms

    Publication Year: 1961, Page(s):252 - 260
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4421 KB)

    IN THE ANALYTICAL DESIGN of high-speed electrohydraulic servomechanisms, an accurate mathematical model of the valve-actuator mechanism is generally helpful in determining the controller and system configuration required to achieve the desired over-all performance. During past years, various forms of electrohydraulic valves and actuator mechanisms have been realized. Detailed descriptions of these... View full abstract»

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  • Signal stabilization of a control system with random inputs

    Publication Year: 1961, Page(s):260 - 268
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2101 KB)

    NOISE AND ITS EFFECT on system performance now can be predetermined by a designer if he uses the theory advanced herein. An external signal is introduced to stabilize a nonlinear feedback system in a state of self-sustained oscillation, but the introduction should be made at a sufficiently high frequency and at a convenient point in the loop. This phenomenon, first introduced by R. Olden-burger, o... View full abstract»

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  • A graphical method for finding the frequency response of nonlinear closed-loop systems

    Publication Year: 1961, Page(s):268 - 277
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2957 KB)

    SEVERAL methods1¿7 have been developed for finding the steady-state sinusoidal response of closed-loop systems containing nonlinear elements. Most of these methods require either unnecessarily severe assumptions or long iterative procedures. This paper presents a graphical procedure for finding the frequency response of a large class of systems for which the describing function provides an adequa... View full abstract»

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  • On stabilization of feedback systems affected by hysteresis nonlinearities

    Publication Year: 1961, Page(s):277 - 285
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3855 KB)

    PRESENCE OF HYSTERESIS or hereditary types of nonlinearities leads to small-signal destabilization in servomechanisms and other feedback control systems and produces small-amplitude sustained oscillations or chattering, particularly when precision requirements make necessary the use of a high loop gain. Some safeguards against this undesirable characteristic are therefore presented here. View full abstract»

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  • Thermoelectricity application considerations

    Publication Year: 1961, Page(s):285 - 289
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2588 KB)

    NOWADAYS, A DESIGNER is faced with myriad electric power requirements ¿ from milliwatts to megawatts ¿ defined by new weapon and space systems concepts. At his disposal, fortunately, are numerous and varied potential sources of electricity. There is renewed interest and activity in fuel cells and thermionic and thermoelectric converters, for example. These, together with improved batteries and r... View full abstract»

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  • Some recent advances in the analysis and synthesis of nonlinear systems

    Publication Year: 1961, Page(s):289 - 300
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3468 KB)

    DURING the past two decades a great deal of material has appeared in the literature concerning the analysis and synthesis of nonlinear systems. In reference 1, a great many of these techniques are reviewed and it is quite evident that these methods are highly specialized pertaining to particular problems. Some are linearization techniques and others are approximations, sometimes quite restricted. ... View full abstract»

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  • Feedback compensation: A design technique

    Publication Year: 1961, Page(s):300 - 305
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1836 KB)

    THE DESIGN OF feedback compensation for feedback control systems is a subject which is treated in the technical literature as an undertaking incidental to the design of specific systems. View full abstract»

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  • Can electric actuators meet missile requirements?

    Publication Year: 1961, Page(s):306 - 312
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2135 KB)

    ONE OF THE vital components of a missile is the device used to position the thrust directors or control surfaces. In addition to satisfying rather stringent dynamic performance requirements, this device must be highly reliable. Missile designers favor hydraulically operated actuators because of their high dynamic performance capabilities, relatively low weight, and small size.1 However, the hydrau... View full abstract»

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Aims & Scope

This Transaction ceased production in 1963. The current retitled publication is IEEE Transactions on Industry Applications.

Full Aims & Scope