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Viewing 164191 to 164220 of 174183
1958-01-01
Technical Paper
580172
HARRY A. PEARL
1958-01-01
Technical Paper
580179
WILLIAM A. WISEMAN
1958-01-01
Technical Paper
580177
LEONARD GREEN, BRUCE GORDON
1958-01-01
Technical Paper
580176
B. B. MUVDI, C. J. GIEMZA
The importance of the primary stage of creep in high-performance aircraft design stems from the fact that allowable deformations have to be limited to relatively small values consistent with the static, thermo-aeroelastic and stability and control requirements of high-speed flight. The results of primary creep tests on three representative aircraft materials (2024-T86 aluminum alloy, 17-7 PH stainless steel and 6A1-4V titanium alloy) are presented. An outline of the test procedure and the instrumentation employed is given. A method based on Kanter's exponential equation is proposed for predicting primary creep curves. While purely empirical, this technique has indicated good agreement with experimental results. A comparison is made between 17-7 PH (RH950) stainless steel and 6A1-4V titanium alloy heat treated to 155 ksi, in which the material density is considered. The results indicate that, insofar as creep is concerned, the titanium alloy is superior to the stainless steel alloy.
1958-01-01
Technical Paper
580182
A. B. HIRTREITER
1958-01-01
Technical Paper
580183
RALPH H. KRESS
1958-01-01
Technical Paper
580180
J. F. L. ALDRICH, S. TRIPOLI
1958-01-01
Technical Paper
580187
MORTON M. COKER
1958-01-01
Technical Paper
580185
E O MARTINSON
1958-01-01
Technical Paper
580184
R. F. JENSON
1958-01-01
Technical Paper
580124
ROBERT A. DENT
1958-01-01
Technical Paper
580125
DENIS L. LENANE
1958-01-01
Technical Paper
580127
PROF. L. D. CONTA, PROF. P. DURBETAKI
With the advent of automotive engines having very high horsepower capacities, the problem of part-load economy has become serious. One method of improving the efficiency of the spark-ignition engine at light load is the use of mixture-ratio control to effect load variations. Charge stratification makes this method of load-control possible. In this paper the principles involved in stratification are discussed, and a new method for producing stratification is described. The results of engine tests using this method are presented to show the method is workable, and that the predicted advantages actually are obtained. “…there is little doubt that, sooner or later, the system of working with a stratified charge will become commercial, … it is possible and the high efficiency theoretically obtainable from it can be approached.” (1)* Harry R. Ricardo, 1922
1958-01-01
Technical Paper
580126
GEORGE W. NIEPOTH
1958-01-01
Technical Paper
580129
H. NORDHOFF
1958-01-01
Technical Paper
580130
JAMES E. GOODMAN
1958-01-01
Technical Paper
580131
EDWARD N. COLE
1958-01-01
Technical Paper
580134
E. O. HAUSMANN
1958-01-01
Technical Paper
580135
SAUNDERS B. KRAMER
1958-01-01
Technical Paper
580137
E. N. HATCH
1958-01-01
Technical Paper
580138
Carl F. Schmidt

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