All Member Open Forum

 View Only
Expand all | Collapse all

Reliability data structure for ships

  • 1.  Reliability data structure for ships

    Posted 08-04-2020 05:02 PM
    Hello everyone! 

    I am starting from zero a reliability journey on the company, we work with a fleet with 51 ships. (Most of it PSVs, plataform supply vessels)

    I have planned all the steps to perform it, and in the stage we are, we need to create a data bank of all equipment/systems from our ships so then start thinking on reliability. (Yes, we don't have an equipment inventory implemented).

    So this very first step is to collect data and organize it! I am utilizing much of ISO 14224 to structure data. 

    But of course, opinions from the colleagues in this forum would be very very helpful.

    Does anyone have any material with logical equipment data structure for ships? Reliability implementation documents? 

    I appreciate any help or comments,

    Thanks for your time reading.

    Regards,


    ------------------------------
    Igor Canabarro
    Brazil
    ------------------------------


  • 2.  RE: Reliability data structure for ships

    Posted 08-05-2020 09:38 AM
    Hello Igor,

    ISO 14224 is a good reference, but I'd recommend you look at the Expanded Ships Work Breakdown Structure from the U.S.Navy, it is for vessels.
    Available for purchase at https://global.ihs.com/doc_detail.cfm?item_s_key=00111822&item_key_date=920821&rid=GS
    In regards to setting up your data structure I'd also look at the structure contained in GEIA standard 0007-C Logistic Product Data.  The standard is designed to go from identifying asset structure from design throughout the product lifecycle, while mostly used by government projects it can be applied to industry.
    The standard has around 600 data elements in over 50 data tables that cover asset description, technical information, FMECA/RCM data elements, maintenance task procedures, parts and resources and much more. https://www.sae.org/standards/content/geiastd0007c/  
    Here is one last link to an article that show SWBS and ESWBS. http://reliabilityanalytics.com/reliability_engineering_library/MIL-STD-3034_Reliability_Centered_Maintenance_Process_21_Jan_2011/MIL-STD-3034_Reliability_Centered_Maintenance_Process_21_Jan_2011_pp_15.pdf

    The GEIA standard is a little overwhelming but it does provide the framework for performing total life-cycle costing analysis of your assets.  If I was going to start from ground zero I would use it as a foundation and capture the data elements that provide value to the organization and the key elements that allow various reports to be produced.  I'd also note the more data elements you capture, no matter what hierarchy or system you use, the more it costs to maintain that data.

    There are vendors out there with asset based fleet management systems modeled on the standard.
    Good Luck in your endeavor and I hope this helps.
    Email me if you would like to discuss further.

    ------------------------------
    Hank Kocevar,CMRP
    Consultant
    Guardian Technical Services
    hkocevar@guardiantech.org
    ------------------------------



  • 3.  RE: Reliability data structure for ships

    Posted 08-06-2020 07:19 AM
    Many thanks for the good information @Henry Kocevar, these are resources I really didn't know about.​​ 

    I will sure look into it! 

    Regards!

    ------------------------------
    Igor Canabarro
    São João da Barra
    ------------------------------



  • 4.  RE: Reliability data structure for ships

    Posted 08-09-2020 01:41 PM
    Before you give IHS $30 for the government’s work, search the Defense Technical Information Center, DTIC.mil. There is lots of publicly available stuff. Also, the NAVSEA.mil site.

    Look at the last few pages of this:

    https://apps.dtic.mil/dtic/tr/fulltext/u2/a455524.pdf


    ---------------------------------
    Karl Burnett

    Solvay, Inc
    Anderson SC
    ---------------------------------





  • 5.  RE: Reliability data structure for ships

    Posted 08-10-2020 09:02 AM

    Karl,

    The last few pages are great  for the SWBS Hierarchy.  I have looked at DTIC.mil and the NAVSEA website for the SWBS document in the past but was unable to find a publicly available version, thanks for the list in your referenced document!

    Hank



    ------------------------------
    Hank Kocevar,CMRP
    Consultant
    Guardian Technical Services
    hkocevar@guardiantech.org
    ------------------------------



  • 6.  RE: Reliability data structure for ships

    Posted 08-10-2020 11:15 AM
    I’m glad it helped! It seemed more useful for a first step.

    Of course no one wants to transcribe 15,000 data rows; one of the corporate packages that is really to load or import would be more useful at a later step.

    ABS may have something relevant as well. The US Navy has done some work with ABS to standardize these kinds of things for commercial construction standards.

    ---------------------------------
    Karl Burnett

    Solvay, Inc
    Anderson SC
    ---------------------------------





  • 7.  RE: Reliability data structure for ships

    Posted 08-07-2020 08:27 AM
    Igor-

    My company, Quantic Engineering and Logistics Corporation has been conducting reliability studies and ships and ship equipment for over 30 years.  Creating a RM&A/RCM program for an individual ship is a daunting task.  We are currently conducting two studies, one for the USCG Offshore Patrol Cutter (OPC) and the other for the USCG Polar Security Cutter (PSC).  We use our in-house software called ShipMan developed over the years.  Our OPC database has some 15K line items of equipment in it with 4370 maintenance records for RCM.  ShipMan uses a modified parts count method for computing reliability.  The RCM section is fashioned after Mil-Std-3034A.  Available at https://www.weibull.com/knowledge/milhdbk.htm.

    I will caution you on using 3034A for RCM.  It is really designed for manual performance of RCM and its goal is to fill out Navy Maintenance Requirement Cards.  In a lot of ways, it misses the real commercial object of RCM

    Good luck with your endeavor.  I can be reached at mkolesar@quanticeng.com if you need further guidance.

    Mike Kolesar

    ------------------------------
    Michael Kolesar
    President
    Quantic Engineering and Logistics Corp
    Panama City Beach FL
    ------------------------------



  • 8.  RE: Reliability data structure for ships

    Posted 08-08-2020 08:25 AM
    Michael

    Amazed about the ship maintenance data you may have be available. Can your software be found in the market? Or is it only for in-house use?

    Regards,

    ------------------------------
    Igor Canabarro
    São João da Barra
    ------------------------------



  • 9.  RE: Reliability data structure for ships

    Posted 08-12-2020 11:44 AM
    Igor-

    I didn't mean to leave you hanging but I haven't been able to log on for teh past couple of days.

    1.  Mil-Standards are available at:  https://quicksearch.dla.mil/qsSearch.aspx.  You just need to put in the Document Number such as 3034.
    2.  I caution against using the Navy ESWBS system except at the the five digit level or less.  A system with a XXXXX-XXX-XXX gives a much more workable solution.  For instance you can break down any system or subsystem into 999 parts.  With the ESWBS system you are limited to 33 levels (nine numerals and 24 letters.  It's difficult to explain in a short conversation.
    3. There are a number of RCM software programs out there, but I know of no CMMS that has RCM tied into it except for our ShipMan.  If you send me your e-mail I will have a further conversation about that.
    4.  Also, if you send me your e-mail I will send you a copy of the Navy ESWBS system.

    Mike

    ------------------------------
    Michael Kolesar
    President
    Quantic Engineering and Logistics Corp
    Panama City Beach FL
    ------------------------------



  • 10.  RE: Reliability data structure for ships

    Posted 08-29-2020 02:20 PM
    Here is a very nice article about WBSs, with a nice list of references, too:


    https://www.academia.edu/23487106/SHIP_WORK_BREAKDOWN_STRUCTURES_THROUGH_DIFFERENT_SHIP_LIFECYCLE_STAGES?email_work_card=view-paper

    ---------------------------------
    Karl Burnett

    Solvay, Inc
    Anderson SC
    ---------------------------------





  • 11.  RE: Reliability data structure for ships

    Posted 08-29-2020 04:13 PM
    Thank you!

    --

    Igor Canabarro | Coordenador de Manutenção G R
    Bram Offshore Transportes Marítimos Ltda.
    Edison Chouest Offshore

    Tel.  +55-22-3514-1358 | Cel. +55-22-99745-3229

    Recep. +55(21) 2018-1800 | Ext. 54058

    Base B-Port São João da Barra, RJ