R/1000

[aeronavale]

hello!

I was presented a graph of R/1000 over TIS. Can you tell me please how is this graph constructed and what it means?

I need to know the exact data and how you calculate it, in order to understand its meaning.

Thanks!

 

[MikeHalloran]

We need to know what the hell you are talking about in order to understand your question.


Mike Halloran
Pembroke Pines, FL, USA

 

[aeronavale]

I thought you know if you're in automotive, repairs per thousand and time in service, only people who know can answer me I bet

 

[GregLocock]

I'll take a punt that it is repairs per 1000 vehicles, TIS is time in service.

Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376

http://eng-tips.com/market.cfm?

 

[aeronavale]

Yes, I already said that, but any help?

 

[IRstuff]

What do you mean? It should basically resemble the classical bathtub curve for reliability, i.e., high at start of service and end of service, and relatively constant in the middle.
R/1000 is essentially a failure rate.

TTFN
I can do absolutely anything. I'm an expert!
faq731-376 forum1529

 

[3DDave]

This is a generalized reliability engineering question, not a uniquely automotive engineering question. The give-away is that Google doesn't return meaningful results, so it means this is not a phrase that is typically used. Adding the word "reliability" returns meaningful results.

Here's a list of sources, mostly available from Assist Quick Search.

MIL-HDBK-108 NOT 1 Canceled QUALITY CONTROL AND RELIABILITY - SAMPLING PROCEDURES AND TABLES FOR LIFE AND RELIABILITY TESTING (BASED ON EXPONENTIAL DISTRIBUTION) (NO S/S DOCUMENT)
MIL-HDBK-109 NOT 1 Active Quality Control and RELIABILITY - Statistical Procedures for Determining Validity of Suppliers Attributes Inspection of
MIL-HDBK-189C Active RELIABILITY Growth Management
MIL-HDBK-217F(2) Active RELIABILITY Prediction of Electronic Equipment
MIL-HDBK-251 Active RELIABILITY/DESIGN THERMAL APPLICATIONS
MIL-HDBK-266 Canceled APPLICATION OF RELIABILITY - CENTERED MAINTENANCE TO NAVAL AIRCRAFT, WEAPON SYSTEMS AND SUPPORT EQUIPMENT (S/S BY MIL-STD-2173)
MIL-HDBK-338B NOT 2 Active Electronic RELIABILITY Design Handbook
MIL-STD-683 Test Methods and Procedures for Microelectronics
MIL-STD-756 Reliability Modeling and Prediction
MIL-HDBK-781A Active RELIABILITY TEST METHODS, PLANS, AND ENVIRONMENTS FOR ENGINEERING DEVELOPMENT, QUALIFICATION, AND PRODUCTION
MIL-HDBK-1823A Active Nondestructive Evaluation System RELIABILITY Assessment
MIL-HDBK-2067 NOT 1 Active AIRCREW AUTOMATED ESCAPE SYSTEMS RELIABILITY AND MAINTAINABILITY (R/M) PROGRAM REQUIREMENTS FOR
MIL-HDBK-2173 NOT 1 Canceled RELIABILITY-CENTERED MAINTENANCE REQUIREMENTS FOR NAVAL AIRCRAFT, WEAPONS SYSTEMS AND SUPPORT EQUIPMENT (REFER TO NAVAL AVIATION RCM PROCESS, GUIDE MANUAL, NAVAIR 00-25-403)
ARMP-1 ED.4 Active NATO REQUIREMENTS FOR RELIABILITY AND MAINTAINABILITY
ARMP-5 Canceled GUIDANCE ON RELIABILITY AND MAINTAINABILITY TRAINING
ARMP-8 ED.1 Canceled RELIABILITY AND MAINTAINABILITY IN THE PROCUREMENT OF OFF-THE-SHELF EQUIPMENT
ITOP-2.2.509.1(1) Active Tracked-Vehicle RELIABILITY, Availability, and Maintainability
ITOP-5.1.014 Active Statistical Methods of RELIABILITY Determination
ITOP-5.2.623 Active GENERAL REQUIREMENTS FOR ESTABLISHING RELIABILITY OF AIRBORNE FLIGHT TERMINATION SYSTEM COMPONENTS
NAVAIR 00-65-502_NAVORD OD 41146 Reliability Engineering Handbook
NOTS TP 3716 EX POST FACTO RELIABILITY CONSIDERATIONS
QAP-259 ED.1 Active RELIABILITY/CREDIBILITY CRITERIA
RELIABILITY: A Practitioners Guide

 

[ivymike]

maybe this will help:

http://www.weibull.com/hotwire/issue14/relbasics14.htm

 

[IRstuff]

This might be a simpler start:

http://www.weibull.com/hotwire/issue21/hottopics21.htm

TTFN
I can do absolutely anything. I'm an expert!
faq731-376 forum1529