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Technical Paper

CYCLIC TESTING TO SIMULATE DIESEL ENGINE SERVICE CONDITIONS
1956-01-01
560215
Cyclic testing introduces large thermal variations, structural loadings, and certain acceleration loadings which do not exist in constant speed, full load testing of Diesel Engines. Certain kinds of parts failure can be accelerated by frequent and drastic changes of test loads and speeds in a durability test cycle specified after an analysis of a field installation where trouble is occurring. Laboratory type instrumentation is becoming increasingly important in analyzing what an engine in the field is called upon to do. Some practical test cycles and results are discussed.
Technical Paper

NAVAL LABORATORY TESTS OF DIESEL ENGINES SIMULATING FLEET OPERATING CONDITIONS
1956-01-01
560214
This paper describes some of the tests of naval diesel engines in the Internal Combustion Engine Laboratory at the U. S. Naval Engineering Experiment Station, Annapolis, Maryland. Results are presented from engine endurance tests under cyclic operation of load and speed, cold starting of high speed engines, bench and engine tests of full flow lubricating oil filters and snorkel operation of 2-cycle submarine type diesel engines. Suitability and endurance tests simulating Fleet service conditions have been satisfactory for performance evaluations, determination of wear rates, maintenance and overhaul schedules and establishing operating techniques and methods.
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