Analog Computer Solution for Transverse Vibrations of a Uniform Beam with Damped, Flexible, Massive End Restraints

1995 ◽  
pp. 87-99
Author(s):  
J. P. Raney
Keyword(s):  
Analog Computer ◽  
Computer Solution ◽  
Uniform Beam ◽  
Transverse Vibrations

Optimum generating schedule for a hydro-thermal power system/an analog computer solution to the short-range problem

SIMULATION ◽  
1969 ◽  
Vol 12 (4) ◽  
pp. 191-199
Author(s):  
K.K.Y. Wije Perera
Keyword(s):  
Power System ◽  
Short Range ◽  
Thermal Power ◽  
Analog Computer ◽  
Computer Programme ◽  
Computer Solution ◽  
Plant Operation ◽  
Equa Tions ◽  
Thermal Power System ◽  
Practical Feasibility

An analog computer programme for solving the "co ordination equations" developed by Chandler, Dandeno, Glimn, and Kirchmayer 1 (CDGK) is formulated and tested. These coordination equations are wanting in that the plant maximum and minimum limits of operation have not been considered in CDGK's problem formula tion. 2 New coordination equations which consider plant operation limits are therefore derived. These new equa tions are reduced to a form suitable for analog compu tation. The practical feasibility of an iterative-type ana log solution to CDGK's equations as well as to these new equations is established.

Analog Computer Solution of the Orbital Flight Equations

SIMULATION ◽  
1963 ◽  
Vol 1 (1) ◽  
pp. R-41-R-48 ◽  
Author(s):  
L.E. Fogarty ◽  
R.M. Howe
Keyword(s):  
Analog Computer ◽  
Accurate Solution ◽  
Fast Time ◽  
Computer Solution ◽  
Orbital Flight ◽  
Close Satellite ◽  
Control Forces ◽  
Six Degree Of Freedom ◽  
And Control ◽  
Differential Analyzer

A modified flight-path axis system is introduced to simplify computer mechanization of the orbital flight equations. Complete six degree-of-freedom equa tions are presented, including aerodynamic, power- plant, and control forces. Electronic differential analyzer mechanization of these equations in both real and fast time is described, including a novel technique for division which preserves favorable multiplier scaling. Specific machine results are presented which demonstrate accurate solution of close-satellite tra jectories, including re-entry from satellite altitudes to sea level. With no change in circuit or scaling the same computer mechanization yields zero-drag orbits which close within several hundred feet of altitude.

Analog Computer Solution of a Complex Transient-Hydraulic Problem in the Power Industry

1961 ◽  
Vol 83 (3) ◽  
pp. 433-442 ◽  
Author(s):  
E. H. Taylor ◽  
A. Reisman ◽  
E. C. Deland ◽  
H. H. Baudistel
Keyword(s):  
Los Angeles ◽  
Nonlinear Differential Equations ◽  
Water System ◽  
Cooling Water ◽  
Analog Computer ◽  
Computer Solution ◽  
Steam Power ◽  
Circulating Water ◽  
Circulating Water System ◽  
The City

The Scattergood Steam Power Plant of the City of Los Angeles uses Pacific Ocean water as a heat sink. During the design of the circulating water system which conveys the ocean cooling water to the condensers, it was necessary to predict the hydraulic behavior under certain unsteady conditions in order to establish design criteria. This article describes the circulating water system, the problems to be solved, the methods of mathematical analysis, and the analog computer solution of the resulting set of 28 simultaneous nonlinear differential equations.

Axial, Relative Motion of a Circular Step Bearing

1959 ◽  
Vol 81 (2) ◽  
pp. 109-115 ◽  
Author(s):  
L. Licht
Keyword(s):  
Thrust Bearing ◽  
Equation Of Motion ◽  
Analog Computer ◽  
Small Displacement ◽  
Axial Motion ◽  
Computer Solution ◽  
Damping Coefficients ◽  
Displacement Equation ◽  
Stiffness And Damping ◽  
Local Stiffness

Equations relating the flow of the lubricant and the axial motion of an externally pressurized thrust bearing are developed. The bearing is shown to be stable when the fluid is incompressible. Expressions for local stiffness and damping coefficients, useful in the evaluation of the dynamic response of the bearing, are given. An analog computer solution of the equation of motion is compared with the results of the corresponding, small displacement equation.

The Plane-Parallel Magnetron: An Analytic and Analog Computer Solution

1974 ◽  
Vol 42 (11) ◽  
pp. 1035-1036
Author(s):  
Gary Kessler ◽  
Paul Lucas
Keyword(s):  
Analog Computer ◽  
Computer Solution ◽  
Plane Parallel
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