�
�Here is a couple of references from a presentation I did a month or two ago.

NSWC-94/L07 - Handbook of Reliability Prediction Procedures for Mechanical
Equipment 
This handbook, developed by the Naval Surface Warfare Center � Carderock
Division provides failure rate models for fundamental classes of mechanical
components. Examples of the specific mechanical devices addressed by the
document include belts, springs, bearings, seals, brakes, slider-crank
mechanisms, and clutches. Failure rate models include factors that are known
to impact the reliability of the components. 
�< /span>
NPRD-95 

The Non-electronic Parts Reliability Data (NPRD-95) databook is published by
the Reliability Analysis Center and provides historical field failure rate
data on a wide variety of mechanical assemblies. 
 
Dave Clement



From: "Barker, Neil" <neil.bar...@e2v.com&g t;
To: Mark Hone <mh...@wellmandefence.co.uk>; emc-p...@ieee.org
Sent: Wednesday, October 29, 2008 10:56:00 AM
Subject: RE: Reliability: MTBFs and Probability of Failure

Mark

I think you are looking for the NSWC mechanical model for prediction. Most
of the proprietary software packages support this.

Best regards 

Neil R. Barker CEng MIET HonFSEE MIEEE 
Manager 
Quality Engineering 
e2v technologies (uk) ltd 
106 Waterhouse Lane 
Chelmsford 
Essex CM1 2QU 
UK 

Tel: (+44) 1245 453616 
Fax: (+44) 1245 453571 
Mob: (+44) 7801 723735 

P Please consider the environment before printing this email. 




From: Mark Hone [mailto:mh...@wellmandefence.co.uk] 
Sent: 29 October 2008 11:15
To: emc- p...@ieee.org <mailto:emc-p...@ieee.org> 
Subject: Reliability: MTBFs and Probability of Failure

Dear All,

I am most embarrassed to say that I can't find in my saved emails or in a
search of the EMC-PSTC archives or in Google search, a reference I think I
once saw to a Mil Handbook that helps with calculations of MTBFs for
mechanical items.  I'm sure someone has mentioned it in the same breath as
Mil Hdbk 217F.

Can someone help me with a reference, please?!

And any book recommendations on the subject (preferably titled "The Idiot's
Guide to...")?

For your interest, we're doing some safety assessments (to IEC 61508) of a
new piece of equipment with a view to achieving an appropriate SIL rating.

With hopeful regards,

Mark

--
Mark Hone, HESS Manager
  Wellman Defence Limited  
  Williams Road                      
  Portsmouth, Hampshire      
  PO3 5FP, ENGLAND            
  Tel: +44 (0)23 9266 4911
  Tel: +44 (0)23 9262 9239 (Direct)
  Fax: +44 (0)23 9269 7864
  Mobile: +44 (0)7919 047775

Sent by E2V TECHNOLOGIES PLC or a member of the E2V group of companies. A
company registered in England and Wales. 
Company number; 04439718. 
Registered address; 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU, UK.

______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please visit http://www.messagelabs.com/email 
______________________________________________________________________

-

This message is from the IEEE Product Safety Engineering Society
emc-pstc discussion list.    Website:  http://www.ieee-pses.org/

To post a message to the list, send your e-mail to emc-p...@ieee.org

Instructions:  http://listserv.ieee.org/request/user-guide.html

List rules: http://www.ieee-pses.org/listrules.html

For help, send mail to the list administrators:

    Scott Douglas          emcp...@ptcnh.net
    Mike Cantwell          mcantw...@ieee.org

For policy questions, send mail to:

    Jim Bacher:            j.bac...@ieee.org
    David Heald:          dhe...@gmail.com

All emc-pstc postings are archived and searchable on the web at:

    http://www.ieeecommunities.org/emc-pstc


-



This message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. Website: http://www.ieee-pses.org/ 

To post a message to the list, send your e-mail to emc-p...@ieee.org 

Instructions: http://listserv.ieee.org/request/user-guide.html 

List rules: http://www.ieee-pses.org/listrules.html 

For help, send mail to the list administrators:

Scott Douglas emcp...@ptcnh.net
Mike Cantwell mcantw...@ieee.org 

For policy questions, send mail to:

Jim Bacher: j.bac...@ieee.org
David Heald: dhe...@gmail.com 

All emc-pstc postings are archived and searchable on the web at:

http://www.ieeecommunities.org/emc-pstc 


Reply via email to