Category Archives: Maintenance of Textile Machinery

Bathtub curve to analyze the failure patterns of Equipment

bath tub curve


A bath tub curve is used to observe,  analyze and express the failure pattern of an equipment over its functional life. The different sections of a bath tub curve is as following-



This portion is the “early failure or infant mortality” area.  Failure rates are high and are  caused by design and manufacturing problems.  The remedy is redesign, and improved quality control. After these problems have been overcome the problem remains although at a reduced failure rate level.  In this case the failures are caused by faulty maintenance practices, errors during re-assembly of the component and installation into the system. Read the rest of this entry

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