Journal of Fluids Engineering: Recent submissions
Now showing items 7221-7240 of 9024
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Discussion: “A Combined Analytical and Experimental Approach to the Development of Fluid-Jet Amplifiers” (Brown, F. T., 1964, ASME J. Basic Eng., 86, pp. 175–182)
(The American Society of Mechanical Engineers (ASME), 1964) -
Minimum Fuel Control of a Second-Order Linear Process With a Constraint on Time-to-Run
(The American Society of Mechanical Engineers (ASME), 1964)The optimal control as a function of the instantaneous state, i.e., the optimal “feedback” or “closed-loop” control, is derived for the controlled second-order linear process with constant ... -
On Adaptive Optimal Control of Nonlinear Processes
(The American Society of Mechanical Engineers (ASME), 1964)The paper concerns an approach to adaptive optimal control of nonlinear dynamic systems which has been introduced by Kulikowski. In this approach, the required identification is carried out at ... -
A Solution to the Sampled, Minimum-Time Problem
(The American Society of Mechanical Engineers (ASME), 1964)A solution of the linear, sampled, minimum-time problem is developed which permits the determination of the control policy in real time by an on-line digital control computer. The solution is ... -
Analysis of Piecewise Linear Systems by the Method of Integral Equations
(The American Society of Mechanical Engineers (ASME), 1964)Analysis of piecewise linear systems may require the solution of high-order linear differential equations whose parameters are constants within a given region but change into different constants ... -
The Response of Nonlinear Closed-Loop Systems to Random Inputs
(The American Society of Mechanical Engineers (ASME), 1964)A dual-input describing function (DIDF) is derived for sine waves and Guassian noise. The derivation follows the correlation method used in [1]. In this paper only single-valued nonlinearities ... -
Precise Power Control Utilizing a New Actuator Concept Embodying All-Mechanical Power Flow
(The American Society of Mechanical Engineers (ASME), 1964)Performance of a servomechanism that provides accurate, continuous control of mechanical power is fundamentally governed by the actuator used to meter power to the load. These actuators, when ... -
Stability of Subharmonic Oscillations in Nonlinear Systems
(The American Society of Mechanical Engineers (ASME), 1964)This paper presents a method for finding necessary conditions such that a subharmonic oscillation may exist in certain types of nonlinear feedback systems. The method is applicable to feedback ... -
Optimal Bang-Bang Control With Quadratic Performance Index
(The American Society of Mechanical Engineers (ASME), 1964)The following optimal regulator problem is considered: Find the scalar control function u = u(t) which minimizes the performance index J[u]= 120T〈x(t), Qx(t)〉dt, subject to the conditions ẋ = ... -
A New Method of Locating the Maximum Point of an Arbitrary Multipeak Curve in the Presence of Noise
(The American Society of Mechanical Engineers (ASME), 1964)A versatile and practical method of searching a parameter space is presented. Theoretical and experimental results illustrate the usefulness of the method for such problems as the experimental ... -
A Counterbalance System for Dynamic Testing of Equipment Designed to Operate in a Zero-G Field
(The American Society of Mechanical Engineers (ASME), 1964)The development and design considerations of a counterbalance system utilizing a servomechanism are given. The purpose of the counterbalance system is to allow dynamic testing of equipment to ... -
Relative Stability Via the Direct Method of Lyapunov
(The American Society of Mechanical Engineers (ASME), 1964)A mathematically rigorous concept of relative stability based on the v-functions of the direct method of Lyapunov is introduced. Two systems of the type representable by ẋ = f (x ) are ... -
Stability Study of PWM Feedback Systems
(The American Society of Mechanical Engineers (ASME), 1964)A fundamental equation which yields the limit-cycle feature of PWM feedback system is derived in this paper. The application of this equation to obtain the response of the autonomous as well ... -
Optimum Control of Distributed-Parameter Systems
(The American Society of Mechanical Engineers (ASME), 1964)This paper presents a general discussion of the optimum control of distributed-parameter dynamical systems. The main areas of discussion are: (a) The mathematical description of distributed parameter ... -
Linear Digital Control
(The American Society of Mechanical Engineers (ASME), 1964) -
When Is a Linear Control System Optimal?
(The American Society of Mechanical Engineers (ASME), 1964)The purpose of this paper is to formulate, study, and (in certain cases) resolve the Inverse Problem of Optimal Control Theory, which is the following: Given a control law, find all performance ... -
A Simple Stability Criterion
(The American Society of Mechanical Engineers (ASME), 1964)A quick method is described by which it may be determined for which ranges of gain, K, all the roots of the characteristic equation have negative real parts. These ranges of stability are ... -
Analytical Representation of the Root-Locus
(The American Society of Mechanical Engineers (ASME), 1964)A technique for analytical representation of the root-locus is developed in this paper for both negative and positive feedback. With the help of the derived general equation for the root-locus, ... -
Amplitude Frequency Response Analysis and Synthesis of Unfactored Transfer Functions
(The American Society of Mechanical Engineers (ASME), 1964)A graphical method provides, without templates and without factoring, a means for rapidly estimating log-amplitude versus log-frequency response curves from transfer functions in their unfactored ... -
Fluid-Temperature Transients in a Dual-Heat-Exchanger System
(The American Society of Mechanical Engineers (ASME), 1964)A study of fluid-temperature transients in an experimental dual-heat-exchanger system based on a combination of analog simulation and analytical techniques.