-----Original Message-----
From: CBM-SWEDEN [mailto:cbm-sweden-owner@yahoogroups.com]
Sent: den 18 april 2005 17:16
To: CBM Svenska Tillståndstyrt Underhåll Klubben (CBM)
Subject: [cbm-sweden] U.S. Navy Analysis of Submarine Maintenance Data and the Development of Age and Reliability Profiles

http://www.plant-maintenance.com/articles/SubmarineMaintenanceDataRCM.pdf

 

U.S. Navy Analysis of Submarine Maintenance Data and the Development of Age and Reliability Profiles

Timothy M. Allen  Department of the Navy  SUBMEPP  P.O. Box 7002  Portsmouth, NH

 

ABSTRACT

In 1961a U.S. Government sponsored task force reported its findings on the effect of scheduled maintenance and aircraft reliability. They stated “In the past, a great deal of emphasis has been placed on the control of overhaul periods to provide a satisfactory level of reliability. After careful study, the Committee is convinced that reliability and overhaul time control are not necessarily directly associated topics.” Further studies that also supported this precept led to a new discipline known as “Reliability Centered Maintenance”. This RCM discussion focuses on one of the principles of RCM - Hardware may wear out or have random failure - Random is more common – and the U.S. Navy’s findings in regard to this principle. In 1998 Naval Sea Systems Command activity SUBMEPP (Submarine Maintenance Engineering, Planning and Procurement) developed the capability to generate Age and Reliability curves utilizing maintenance feedback data. This provided the organization a new means to objectively measure the effects of planned maintenance to engineer optimal maintenance plans. After three years of generating Age and Reliability curves, SUBMEPP is ready to report that the 1961 finding still holds true. In the majority of cases, there is no relationship between overhaul time and reliability.

 

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Trevlig läsning.

 

 

Göran Wikingson

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