The Design of Fluid Power Systems Using Analogue Computers

Abstract

Two important areas in design are formulation and solution of the mathematical model; this paper deals mainly with the latter problem and is primarily concerned with the application of analogue computers to the design of fluid power systems, although much of the work is applicable to general engineering design problems.

Before reviewing some typical applications it is first necessary to consider the benefits to be obtained from the use of computers.

Get full access to this article

View all access options for this article.

References

Jackson

A. S.

‘Analog Computation’, 1960, McGraw-Hill, 308.

Korn

G. A.

Korn

T. M.

‘Electronic Analogue and Hybrid Computers’ (McGraw-Hill) 1964.

Ezekiel

F. D.

Paynter

H. M.

‘Computer Representations of Engineering Systems Involving Fluid Transients’, Trans. Am. Soc. Mech. Engrs, 1957, 1840.

Jackson

A. S.

op cit., 255.

Meissinger

H. F.

‘An Electronic Circuit for the Generation of the Functions of Several Variables’, Reeves Tech, Reprint 101, Reeves Inst. Corp., N.Y.

Paul

R. J. A.

‘Hybrid Computing Techniques’, Computers in Mech. Engineering, Inst. Mech. Engrs, 1962, Paper 3.

Brennan

R. D.

Fahidy

T. Z.

‘Digital Simulation’, Instruments and Control Systems, 1966, 133.

Alexander

H. R.

‘The Analogue Computer as a Tool in the Solution of Problems in Dynamics’, Computers in Mech. Engineering, op cit, Paper 6.

Harpur

N. F.

‘Some Design Considerations of Hydraulic Servos of Jack Type’, Proc. of the Conf. on Hydraulic Servomechanisms, I. Mech.E, 1953, 41.

10.

Lambert

T. N.

Davies

R. M.

‘Investigation of the Response of a Hydraulic Servomechanism with Inertial Load’, J. Mech. Eng. Sci., 5, 3, 1963, 281.

11.

McCloy

‘Effects of Fluid Inertia and Compressibility on the Performance of Valves and Flow Meters Operating Under Unsteady Conditions’, J. Mech. Eng. Sci., 8, 9, 1966, 52.

12.

Royle

J. K.

‘Inherent Non-linear Effects in Hydraulic Control Systems with Inertia Loading’, Proc. I. Mech. E, 173, 9, 1959, 257.

13.

Glaze

S. G.

‘Analogue Technique and the Non-linear Jack Servo-mechanism’, Proc. Symp. Rec. Mech. Engrg. Dev. in Automatic Control, Inst. Mech. Engrs. 1960, 178.

14.

Davies

R. M.

Lambert

T. H.

‘Transient Response of a Hydraulic Servomechanism Flexibly Connected to an Inertial Load’, J. Mech. Eng. Sci., 6, 1, 1964, 32.

15.

Martin

H. R.

Lichtarowicz

‘Theoretical Investigation into the Prevention of Cavitation in Hydraulic Actuators’, Proc. I. Mech. E, 1966–67, 181, I, No. 18.

16.

Parnaby

‘Electronic Analogue Computer study of Nonlinear Effects in a Class of Hydraulic Servomechanisms’, J. Mech. Eng. Sci., 10, 4, 1968, 346.

17.

Shearer

J. L.

‘Study of Pneumatic Processes in the Continuous Control of Motion with Compressed Air' —I & II, Trans. A. S. Mech. E., 1956, 233–249.

18.

Shearer

J. L.

‘Non-linear Analog Study of a High Pressure Pneumatic Servomechanism’, Trans. A. S. Mech. E, 1957, 465–472.

19.

Cutland

M. J.

‘Response of a Pneumatic Servomechanism’, M.Sc. (Eng.) Thesis, University of London, 1967.

20.

Mann

J. R.

‘An Analogue Computer Survey of a Bang-Bang Pneumatic Servomechanism’, M.Sc. Thesis, M.I.T., 1961.

21.

Proise

‘Non-linear Hot Gas Servo Actuator Analog Computer Study’, Grumman Aircraft Eng. Corp. Report No. D.A. 10–422, 2.

22.

Burrows

C. R.

Webb

C. R.

‘Simulation of an On-off Pneumatic Servomechanism’, Proc. I. Mech. E., 1967–68, 182, I, No. 29.

23.

Burrows

C. R.

‘Non-linear Pneumatic Servomechanisms’, Thesis submitted for Ph.D., University of London, 1968.