THE APPLICABILITY OF SUDDEN-DEATH TEST TECHNIQUES TO THE FATIGUE LIFE OF BALL BEARINGS.

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Abstract:

The sudden-death median rank analysis was applied to ball-bearing fatigue-life data previously reported to determine its usefulness and applicability to bearing-life tests. The results of this analysis were compared to the original serial test data to determine its validity. The ideal case would have the sudden-death life estimates and the serial-life estimates to be equal at some predetermined level of percent failed. Results show that most life estimates made by the sudden-death method deviate by 20 on the average compared to the serial method, and require only about 22 of the time per test needed to obtain the serial-data sample. Author

Author(s):
Williams, Firnest G. ; Schwartz, Joseph I.
Author Organization(s):
DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER ANNAPOLIS MD
Descriptive Note:
Final rept.,
Pagination:
0057

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NSRDC-2690
Task Number(s):
1319
Monitor Series:
2690
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*BALL BEARINGS, FATIGUE(MECHANICS), LIFE EXPECTANCY(SERVICE LIFE), STANDARDIZATION, FAILURE(MECHANICS), RELIABILITY, STATISTICAL ANALYSIS, TABLES(DATA), SPECIFICATIONS, TEST METHODS
Field(s)/Group(s):
Machinery and Tools
Keyword(s):
GRAPHS(CHARTS)
Report Date:
1968 Jun 01