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# IEEE Transactions on Applications and Industry

Includes the top 50 most frequently accessed documents for this publication according to the usage statistics for the month of

• ### Frequency-Changer Systems Using the Cycloconverter Principle

Publication Year: 1963, Page(s):163 - 168
Cited by:  Papers (3)
| | PDF (1105 KB)

First Page of the Article
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• ### Analytic Techniques for the Study of Neural Nets

Publication Year: 1964, Page(s):285 - 292
Cited by:  Papers (2)
| | PDF (1919 KB)

First Page of the Article
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• ### Optimum Sampled-Data Systems with Quantized Control Signals

Publication Year: 1963, Page(s):229 - 233
Cited by:  Papers (19)
| | PDF (875 KB)

Optimum design of sampleddata systems with quantized control signals is considered. The control signals mi(k) are members of a set [-CL, ... -C2, -C1, 0, C1, C2, ... CL] where ci≫ 0, i= 1, 2,... L, and Ck≫Cj for k≫j. By selecting a proper set [ci], a design ... View full abstract»

Publication Year: 1963, Page(s):75 - 79
| | PDF (1086 KB)

Inherent advantages of static adjustable-frequency drives over conventional drives are presented. The two basic approaches to static systems, the inverter and the cycloconverter, are discussed in general terms. A nontechnical explanation of the operation of the two types is introduced. Characteristics and requirements of static drives are outlined. Some miscellaneous considerations that might be o... View full abstract»

• ### A New Dual-Input Describing Function and an Application to the Stability of Forced Nonlinear Systems

Publication Year: 1963, Page(s):65 - 70
Cited by:  Papers (15)
| | PDF (1088 KB)

A new general DIDF (dual input describing function) has been analytically derived for single-valued nonlinearities subjected to two arbitrary noncommensurate sine waves. The development corroborates a previous approximate development for two sine waves widely separated in frequency. The new DIDF is applied to the problem of the stability of nonlinear systems subjected to sinusoidal forcing. It is ... View full abstract»

• ### Minimum-Fuel Feedback Control Systems: Second-Order Case

Publication Year: 1963, Page(s):8 - 17
Cited by:  Papers (18)
| | PDF (1845 KB)

The control u(t), |u(t)| Â¿1, is determined for the control of a linear plant G(s) from an initial state to a terminal state such that the fuel F = Â¿otf |u(t)|dt is minimum. The maximum principle is used to prove that the optimal u(t) is necessarily piecewise constant and that u(t) = + 1, 0, or Â¿1. The optimal feedback control function is derived for the plants G(s) = 1/s... View full abstract»

• ### The Application of Z-Transform Theory to the Analysis of Switched-Type Nonlinear Systems

Publication Year: 1964, Page(s):353 - 360
Cited by:  Papers (2)
| | PDF (1242 KB)

The stability of certain discontinuous feedback systems is analyzed by using the z-transform theory. In the z plane, a system which is equivalent to the nonlinear system under steady-state conditions can be found, as well as the existence of any limit cycle, together with the frequency at which it occurs. An intuitive argument for the stability of a limit cycle is also presented, several examples ... View full abstract»

• ### Fuel-Optimal Control of a Double Integral Plant With Response Time Constraints

Publication Year: 1964, Page(s):240 - 246
Cited by:  Papers (5)
| | PDF (1128 KB)

Given the double integral plant Ã¿(t)=u(t), |u(t)|Â¿1, the control u(t) is determined which, in the time interval [0, T], forces the state of the plant to zero, minimizes the fuel consumed, as measured by Â¿0T|u(t)|dt, and results in a response time T which does not exceed a prespecified multiple of the minimum time. A design of the nonlinear controller necessary is included. View full abstract»

• ### How to Select Overcurrent Relay Characteristics

Publication Year: 1963, Page(s):94 - 104
Cited by:  Papers (7)
| | PDF (3522 KB)

One table herein lists induction overcurrent relays, available from the various manufacturers, along with equivalent time versus current characteristics. Another table gives relay types and current ranges suitable for phase and ground protection of 12 of the most commonly encountered industrial plant distribution and motor circuits. Recommendations result from detailed considerations of a hypothet... View full abstract»

• ### Design Parameters for Thermoelectric Generators

Publication Year: 1963, Page(s):296 - 303
| | PDF (1266 KB)

This paper presents a method for evaluating the performance capabilities of a thermoelectric generator. The fundamental equations given by Ioffe and others have been modified to include the effective figure-of-merit of an array of thermocouples in place of the figure-of-merit of the thermoelectric materials. Practical factors such as electrode and contact resistance have been considered. Performan... View full abstract»

• ### Air-Purged Electric Systems for a Large Compressor Building Having Group B Division 2 Classification

Publication Year: 1964, Page(s):209 - 215
Cited by:  Papers (4)
| | PDF (3373 KB)

To date, published material dealing with large air-purged systems1-5 has been somewhat scarce. This paper is an attempt to make more information available by presenting various arrangements for dealing with hazardous areas, explaining pressurized and purged systems, and describing a large air-purged system installation and the test results obtained during its startup. View full abstract»

• ### No-Load Speed Characteristics of the 2-Phase Servomotor

Publication Year: 1964, Page(s):393 - 397
| | PDF (852 KB)

The no-load speed as a function of coil insertion slot opening and rotor skew is analyzed by operating directly on the flux density function of the stator for the 1-coil-per-pole motor. In addition, the no-load speed dependence on nonsinusoidal current excitation is derived. An attempt is made to note the effect of a skewed rotor which has been smeared by a manufacturing process. The maximum elect... View full abstract»

• ### Servo Problems and Techniques in Large Antennas

Publication Year: 1964, Page(s):105 - 114
Cited by:  Papers (1)
| | PDF (2140 KB)

First Page of the Article
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• ### Solenoid Plunger Magnet with Nearly Constant Force

Publication Year: 1963, Page(s):331 - 334
| | PDF (750 KB)

This paper shows that a constant force magnet must have serrated poles. The analysis covers the new shaped gap, and a method of using test data for a magnet with flat poles. Computed values of the serrated gap are given in an illustrative example. View full abstract»

• ### An Application of Pulse Modulation to Power Supply Miniaturization

Publication Year: 1964, Page(s):420 - 423
Cited by:  Papers (1)
| | PDF (1545 KB)

A significant improvement in the miniaturization of an a-c to d-c power supply has been achieved by a circuit which combines pulse-amplitude and pulse-duration modulation to provide constant area pulses. The modulation is obtained in an inverter-regulator circuit which employs a saturating 2-core high-frequency transformer and gate turn-off semiconductor switches. The principal contributions to mi... View full abstract»

• ### Feedback Compensation Using Derivative Signals I - Routh's Criterion; Root Loci

Publication Year: 1963, Page(s):262 - 268
Cited by:  Papers (2)
| | PDF (1157 KB)

Most signals used for feedback compensation may be treated mathematically as derivatives of the output signal. The gain associated with each derivative signal alters one or more coefficients of the characteristic equation of the closed-loop system, and may also affect the steady-state accuracy. The Routh test may be used in many simple cases to determine limiting values of the gains. In more compl... View full abstract»

• ### The Contribution or Motors and Generators to a Short Circuit Results of Laboratory and Marine Tests

Publication Year: 1964, Page(s):337 - 343
| | PDF (3697 KB)

Short-circuit currents, which are particularly high on ships, result from the combined contribution of generators and motors. This phenomenon can be analyzed with equations expressing the transient conditions of 3-phase rotating machines. Some simplification of these equations allows an easy calculation of short-circuit currents; however, tests are necessary to determine accurate maximum peak and ... View full abstract»

• ### High-Capacity Reaction-Wheel Attitude Control

Publication Year: 1964, Page(s):99 - 104
Cited by:  Papers (2)
| | PDF (1980 KB)

A possible method of controlling the attitude of satellites and space vehicles makes use of a reaction-wheel control system based upon the conservation of angular momentum. Such reaction-wheel systems are currently under consideration for use in earth satellites. The development of high-capacity systems (i.e., systems which have the ability to develop large control torques and to store high values... View full abstract»

• ### Coupling in Cruciform-Missile Control Systems

Publication Year: 1964, Page(s):397 - 401
| | PDF (789 KB)

First Page of the Article
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• ### Sensitivity Determination of Electroexplosive Devices for Reliable Circuit Designs

Publication Year: 1964, Page(s):143 - 147
| | PDF (2025 KB)

The response of electroexplosive devices to electric stimuli must be thoroughly understood to design reliable firing circuits. Techniques available for defining the sensitivity of electroexplosives which offer a variable measure'' are to be preferred over go'' and no-go'' tests at a specification limit. Studies are underway squib parameters, and tests are suggested which will give sensitivit... View full abstract»

• ### Voltage and Current Ripple in Rectifier Systems

Publication Year: 1963, Page(s):339 - 344
Cited by:  Papers (1)
| | PDF (1003 KB)

In a rectifier system with inductive load circuit the current fluctuations correspond to the time integral of the voltage absorbed by the inductance, while in a circuit with an L-C filter the current ripple is defined by the harmonic composition of the output voltage. Both calculations are rather complex; however, once computed, the results are generally valid. Therefore, this work has been done b... View full abstract»

• ### Multiparameter Self-Adaptation Using Auxiliary Models

Publication Year: 1963, Page(s):197 - 202
Cited by:  Papers (1)
| | PDF (1319 KB)

For a system with N-variable parameters, an N-dimensional parameter space defines a matrix of all possible parameter combinations. By subdividing the parameter space, assigning an auxiliary model to each subspace, and using them to scan, all values in the parameter matrix may be tested rapidly. Logic operations select the proper auxiliary model and initiate adjustments of the system parameters. View full abstract»

• ### Tension Control Paper-Making and Converting Machinery

Publication Year: 1964, Page(s):234 - 240
Cited by:  Papers (7)
| | PDF (3137 KB)

First Page of the Article
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• ### Nonlinear Compensation of a Second-and Third-Order System with Dry Friction

Publication Year: 1964, Page(s):128 - 136
Cited by:  Papers (4)
| | PDF (1242 KB)

Systems having dry friction nonlinearity can be stabilized by introducing intentional nonlinear passive compesation. For small ramp inputs it is necessary to increase the damping by a derivative control which becomes saturated for high ramp rates. To decrease the steady-state error at high ramp rates and achieve stability, a dead zone before the integrator is used. A scheme for an input adaptive s... View full abstract»

• ### Calculation of Quadratic Moments of High-Order Linear Systems via Routh Canonical Transformation

Publication Year: 1964, Page(s):428 - 433
Cited by:  Papers (7)
| | PDF (754 KB)

In this paper, three different methods are developed for calculating various moments of the system variables of a linear system, represented by matrix equation x = Ax. A transformation Q is developed which transforms the system matrix A into a special matrix R. Liapunov function V is considered as V = xtQtQx and it facilitates evaluation of various moments Â¿0... View full abstract»

• ### An Experimental and Theoretical Study of the Lorentz-Type Inductor-Alternator Under Load

Publication Year: 1963, Page(s):174 - 178
Cited by:  Papers (1)
| | PDF (939 KB)

In this paper, a method is discussed for calculating the load saturation curves of the inductor machine. The theory has been verified both by comparison with actual tests under load, and by stationary flux measurements on a machine under simulated load conditions. Both checks showed good agreement between test and calculated values. For these tests a homopolar polyphase inductor-alternator was use... View full abstract»

• ### Pattern Recognition and Adaptive Control

Publication Year: 1964, Page(s):269 - 277
Cited by:  Papers (11)
| | PDF (3332 KB)

Adaptive or self-optimizing systems utilize feedback principles to achieve automatic performance optimization. These principles have been applied to both control systems and adaptive logic structures. The Adaline (adaptive linear threshold element) is essentially the same as an adaptive sampled-data system with quantized input and output signals. A digital controller made of adaptive neurons compr... View full abstract»

• ### Automatic Optimizing of a Poorly Defined Process-I

Publication Year: 1963, Page(s):32 - 41
Cited by:  Papers (1)
| | PDF (2399 KB)

This paper is concerned with a consideration of the characteristics of various processes for which automatic optimizing might be employed. An appraisal is given as to the effect of these characteristics on the type of strategies or control logic to be employed. Further, an over-all description of a digital computer program is included which was developed and used to obtain quantitative results in ... View full abstract»

• ### Optical Electrical Design Considerations for Concentrating Solar Cell Panels

Publication Year: 1963, Page(s):169 - 174
Cited by:  Papers (1)
| | PDF (1068 KB)

Information is presented for designing and predicting the optical-electrical performance of a concentrating solar cell panel. Various factors affecting performance are discussed and evaluated. Basic equations, expressing performance in terms of the design parameters and variables, are developed, and typical performance curves are given for an earthspace application. View full abstract»

• ### Transfer Function Tracking of a Linear Time-Varying System By Means of Auxiliary Simple Lag Networks

Publication Year: 1964, Page(s):70 - 72
Cited by:  Papers (6)
| | PDF (354 KB)

One of the most important problems facing a control engineer today is to find a simple and satisfactory method for determining the transfer function of an unknown time-varying control system. In this paper the transfer function is represented by a gain constant and ratio of two rational polynomials of s, where s is Laplace variable. The gain constant and the coefficients in the polynomials vary in... View full abstract»

• ### Synthesis of Optimum Multivariable Control Systems by the Method of Steepest Descent

Publication Year: 1963, Page(s):125 - 130
Cited by:  Papers (6)
| | PDF (1200 KB)

The optimum synthesis of multivariable control systems with generalized quadratic error criterion is solved by using time method of steepest descent in the Hilbert space. Apart from the conventional minimization techniques, this approach works directly on the functional of the error criterion itself so that the optimal solution can be determined through sucessive approximations. Since this solutio... View full abstract»

• ### Design of Shell-Type D-C Motors for Minimum Weight

Publication Year: 1963, Page(s):345 - 351
Cited by:  Papers (1)
| | PDF (1492 KB)

The paper deals with the design of shell-type d-c motors. The chosen performance parameter is the torquesquared-to-inertia ratio, or power rate, which appears to be proportional to the mass of the motor. A design procedure without any trial-and-error is proposed, and for a given power rate an improvement of weight between 10 and 15 is achievable. This result shows the theoretical feasibility of de... View full abstract»

• ### Quasi-Linearization Design of Nonlinear Feedback Control Systems

Publication Year: 1964, Page(s):189 - 195
Cited by:  Papers (2)
| | PDF (1243 KB)

This paper describes an application of the quasi-linearization principle and the use of off-line analog computers for the design of nonlinear feedback control systems. The design objective is to make the feedback system meet a set of transient as well as steady-state specifications under deterministic system inputs. According to the given specifications, the desired input to the nonlinear element ... View full abstract»

• ### Modern Efficient Silicon-Rectifier-Type Multiple-Unit Cars for Philadelphia Area Commuter Service

Publication Year: 1964, Page(s):343 - 352
| | PDF (5916 KB)

After 3 years of careful evaluation, a modern electric multiple-unit passenger car operating under an 11-kv 25-cycle catenary system has been placed in commuter service on two railroads in the Philadelphia area. Its high-strength stainless steel car body with plastic interior finish, modern lighting, and modulated air conditioning, combines maximum space utilization with maximum passenger comfort ... View full abstract»

• ### On the Stability of Nonlinear Feedback Systems

Publication Year: 1964, Page(s):443 - 449
Cited by:  Papers (23)
| | PDF (1491 KB)

First Page of the Article
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• ### Analytical Synthesis of a Class of Model-Reference Time-Varying Control Systems

Publication Year: 1963, Page(s):356 - 362
Cited by:  Papers (4)
| | PDF (1161 KB)

A theoretical investigation is presented for synthesizing nonlinear controllers for a class of model-reference control systems, each consisting of a timevarying-parameter plant and a fixed-parameter model, with the model one order lower than the plant. The plant and the model may have different forms, provided that their static gains are equal to unity. The controller, upon sensing the difference ... View full abstract»

## Aims & Scope

This Transaction ceased production in 1964. The current retitled publication is IEEE Transactions on Industry Applications.

Full Aims & Scope