It has been widely observed that the mass (or weight) and cost of geared transmission systems is a relatively simple function of the maximum continuous torques to be transmitted. This fact may be used to derive simple design tools, which allow rapid comparison of the size and mass of a wide range of designs. Particularly influential is the effect of the configuration: the ratio, number, and disposition of the stages of gearing. In the present paper, a “configuration factor” is developed for the design of multistage, multiple layshaft gearboxes, based on a simplified mass comparison of gearsets designed for the same duty. The results are used to explore the effects of ratio-split, thin-rim designs, and layshaft numbers.
Issue Section:
Technical Briefs
1.
Hofmann
, D.
, 1990, Design and Stress Analysis of Spur and Helical Gears
, Gear Technology Manual, Module 4
, British Gear Association
, Burton on Trent
, pp. 4.41
and 4.67.2.
Willis
, R. J.
, Jr., 1963, “Lightest Weight Gears
,” Prod. Eng. (N.Y.)
0032-9754, 21 January, pp. 64
–75
.3.
Erichello
, R. L.
, 1989, “A Rational Procedure for Designing Minimum Weight Gears
,” Proceedings of Power Transmission and Gearing Conference
, Chicago, IL, American Society of Mechanical Engineers (ASME)
, New York
, Vol. 1
, pp. 111
–114
.4.
Cocking
, H.
, 1986, “The Design of an Advanced Engineering Gearbox
,” Vertica
0360-5450, 10
(2
), pp. 213
–215
.5.
Hertz
, H.
, 1896, “On the Contact of Elastic Solids
,” J. Reine Angew. Math.
0075-4102, 95
(1892
), pp. 213
–215
. (Also in Miscellaneous Papers by H. Hertz, D. E. Jones and G. A. Schott, eds., Macmillan, London.)6.
Lewis
, W.
, 1892, “Investigation of the Strength of Gear Teeth
,” Proceedings of Engineers Club of Philadelphia
, Oct., pp. 16
–23
.7.
White
, G.
, 1998, “Design Study of a Split-Torque Helicopter Transmission
,” Proc. Instn Mech. Engrs (London), Part G J. Aerospace Engineering
, 212G
, pp. 117
–123
.8.
Lin
, P. H.
, Lin
, H. H.
, Oswald
, F. B.
, and Townsend
, D. P.
, 1998, “Using Dynamic Analysis for Compact Gear Design
,” Design Engineering Technical Conference
, American Society of Mechanical Engineers
, Atlanta, GA
, Sept. 13–16.9.
Carroll
, R. K.
, and Johnson
, G. E.
, 1984, “Optimal Design of Compact Spur Gear Sets
,” ASME J. Mech., Transm., Autom. Des.
0738-0666, 106
, pp. 95
–101
.10.
Ross
, A. A.
, 1927, “Tooth Pressures for High Speed Gears
,” Machinery
, 34
(2
), pp. 110
–112
.11.
Coy
, J. J.
, Townsend
, D. P.
, and Zaretsky
, E. V.
, 1985, “Gearing
,” NASA Reference Publication 1152, AVSCOM Technical Report No. 84-C-15.12.
Anon
, 1985, Flight International, Nov. 16, p. 33
.Copyright © 2009
by American Society of Mechanical Engineers
You do not currently have access to this content.
