LIFETIME PREDICTION METHOD AND LIFETIME PREDICTION DEVICE OF ROLLER BEARING

PROBLEM TO BE SOLVED: To provide a lifetime prediction method and a lifetime prediction device of a roller bearing capable of performing lifetime prediction in consideration of an edge load, and performing accurate lifetime prediction agreeing substantially with a bearing lifetime acquired by an exp...

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Bibliographische Detailangaben
1. Verfasser:	HASE HARUO
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEASURING MECHANICAL ENGINEERING PHYSICS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a lifetime prediction method and a lifetime prediction device of a roller bearing capable of performing lifetime prediction in consideration of an edge load, and performing accurate lifetime prediction agreeing substantially with a bearing lifetime acquired by an experiment. SOLUTION: A mesh inside is assumed to have a uniform or linear surface pressure distribution, and a contact surface pressure distribution on the contact surface is calculated, and a shearing stress at each mesh point set under the surface of a contact domain is determined from the contact surface pressure distribution, and further a stress amplitude and its depth are determined. COPYRIGHT: (C)2009,JPO&INPIT