Journal of Fluids Engineering: Recent submissions
Now showing items 5441-5460 of 9024
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Fluidic Electrofluid Converter
(The American Society of Mechanical Engineers (ASME), 1967)The effects of geometry, Reynolds number, and wall temperature on the separation of a fluid jet from a curved surface are investigated. The results are used to develop an electropneumatic ... -
Discrete-Time Models and Stability of Distributed Parameter Systems
(The American Society of Mechanical Engineers (ASME), 1967)The partial differential equations describing distributed parameter systems may often be reduced to transcendental transfer functions with the aid of appropriate boundary conditions. In the analysis ... -
Hydraulic System Simulation Using Time-Delay Elements
(The American Society of Mechanical Engineers (ASME), 1967)A method of simulating a class of hyperbolic distributed systems without using space discretization is presented. Complex distributed systems are realized by means of subsystems of basic distributed ... -
Signal Stabilization of a Memory Type Nonlinearity
(The American Society of Mechanical Engineers (ASME), 1967)The dual input describing function (DIDF) is derived here by statistical methods for the difficult case of a memory type nonlinearity. Special mathematical techniques are used to simplify the ... -
On Performance Bounds for Control Systems
(The American Society of Mechanical Engineers (ASME), 1967)A technique based on Lyapunov’s second method is described for deriving bounds for the performance of nonlinear control systems. As an illustration, a performance bound is derived for systems ... -
Stability Analysis of Reactor Systems Via Lyapunov’s Second Method
(The American Society of Mechanical Engineers (ASME), 1967)This paper develops a technique for finding Lyapunov functions for the class of nonlinear partial differential equations arising from a reactor system which takes into account the coupling of ... -
Distributed Parameter Optimum Control of a Nuclear Rocket With Thermal Stress Constraints
(The American Society of Mechanical Engineers (ASME), 1967)The problem considered here is that of controlling the flow rate through a nuclear rocket such that temperature gradients in the fuel elements, and the corresponding thermal stresses produced, ... -
Identification of Dynamic Systems by Digital Computer Modeling in State Space
(The American Society of Mechanical Engineers (ASME), 1967)A dynamic system identification technique is described in which a digital computer model is constructed and adjusted until the model state transient follows the system state transient to a ... -
Dynamic Study of Temperature Transducers by Use of an Optical Method
(The American Society of Mechanical Engineers (ASME), 1967)The dynamic study of thermal processes is often restricted by the limitations of the temperature transducers. The thermocouple is one of the most employed transducers because of its small size, ... -
Estimating the Roots of the Characteristic Determinant for Multicoupled Systems
(The American Society of Mechanical Engineers (ASME), 1960)A procedure is developed, based on Couchy’s residue theorem, for bounding the undamped natural frequency, damping ratio, and real part of the roots of the characteristic determinant associated ... -
Stability of Coupled-Core Nuclear Reactors: Selected Exact Results
(The American Society of Mechanical Engineers (ASME), 1967)Exact analytical stability criteria are derived for the coupled-core kinetics equations. Four approximate models for describing the time distribution of the coupling neutrons are considered and a ... -
Quasi-Optimum Control of a Flexible Booster
(The American Society of Mechanical Engineers (ASME), 1967)The problem of minimizing both the in-flight bending moments as well as the terminal drift of a flexible vehicle is considered. The performance criterion V(T) = 12y2(T)+k2 tT M2(ξ)dξ, where ... -
A New Matrix Formula for the Inverse Laplace Transformation
(The American Society of Mechanical Engineers (ASME), 1967)A new matrix formula for the inverse Laplace transformation is established. After substituting the eigenvalues and coefficients and performing some simple matrix operations, one can obtain the ... -
A Technical Note on a Semigraphical Synthesis Procedure
(The American Society of Mechanical Engineers (ASME), 1967)The problem of synthesizing a controller to yield a specified overall system phase margin requires specification of both the time constant (or constants) and the gain of the controller, but ... -
Optimal Control With Chebyshev Minimax Performance Index
(The American Society of Mechanical Engineers (ASME), 1967)The optimal control of dynamical systems with conventional Mayer, Lagrange, and Bolza type performance indexes has been studied in some detail [1], [2], [3]. In the present paper, the optimal ... -
Linearization of Time-Independent Nonlinearities by Use of an Extra Signal and Extra Nonlinearity
(The American Society of Mechanical Engineers (ASME), 1967)The technique of signal stabilization is that of introducing an extra signal at the input to a nonlinearity to improve or otherwise alter its performance. In this paper this technique is ... -
Erratum: “Incompressible Jet Mixing in Converging-Diverging Axisymmetric Ducts” (Journal of Basic Engineering, 1967, 89, pp. 210–220)
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Discussion: “Transfer Functions and Input Impedances of Pressurized Piping Systems” (Johnson, B. L., and Wandling, D. E., 1967, ASME J. Basic Eng., 89, pp. 440–443)
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Discussion: “Feedback Control of Linear Distributed Systems” (Wiberg, Donald M., 1967, ASME J. Basic Eng., 89, pp. 379–383)
(The American Society of Mechanical Engineers (ASME), 1967) -
Discussion: “Optimum Control of Linear Systems With Transportation Lag” (Khatri, H. C., 1967, ASME J. Basic Eng., 89, pp. 385–390)
(The American Society of Mechanical Engineers (ASME), 1967)