SRC Forum - Message Replies

Forum: Reliability & Maintainability Questions and Answers

Topic: Reliability & Maintainability Questions and Answers

Topic Posted by: Reliability & Maintainability Forum ( )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998

Back to message list Show all replies Topics List About this forum
Original Message:

Posted by: Dave Wright ( )
Date posted: Thu Aug 24 19:16:14 US/Eastern 2000
Subject: Predictive Failure Analysis on Small Sample Sizes
I am looking for a COTS tool that is capable of predictive failure analysis on small sample sizes. Can anyone make a sugestion on where to go or who to talk to.


Subject: Failure Prediction Tools
Reply Posted by: Jack Farrell ( )
Organization: Reliability Analysis Center
Date Posted: Wed Aug 30 8:07:28 US/Eastern 2000
I assume your question is addressing wear-out failures. Due to the small sample sizes you mention, a Weibull analysis (for which there are many COTS tools) can be misleading. There is a research project at Penn State University called MURI-IPD which is developing predictive techniques for Condition Based Maintenance (CBM) of complex mechanical systems. The goal is to resolve issues allowing the diagnosis of the current state of a mechanical system and to predict the remaining useful life. Their website is As part of their research they may have developed tools similar to the one you are seeking.

Reply to this message