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Design review based on failure mode

January 01, 1970

Design review based on failure mode (DRBFM) is a tool originally developed by the Toyota Motor Corporation. This tool was developed based on the philosophy that design problems occur when changes are made to existing engineering designs that have already been proven successful.

Methodology edit

DRBFM methodology was developed by Tatsuhiko Yoshimura, a Quality Expert and a professor at Japan's Kyushu University. Yoshimura knew that design problems occur when changes are made without the proper level of supporting documentation. Using the philosophy of preventative measures (Mizenboushi), he created his own philosophy of DRBFM. Dr. Tatsuhiko Yoshimura supported the development and usage of DRBFM at many companies. He believes companies that implement the usage of DRBFM will be a better company. He believes the implementation of DRBFM requires discipline and engagement of everyone to the one goal of adding value to the customer by meeting engineering functional requirements and customer expectations.

The philosophy of DRBFM centers on three concepts:

  • Good design
  • Good discussion
  • Good dissection

The DRBFM methodology is now a recognized documented process by SAE (Society of Automotive Engineers) and also by AIAG (Automotive Industry Action Group). SAE J2886[1] DRBFM Recommended Practice was published in 2013 and the AIAG DRBFM Reference Guide was published in September 2014. Bill Haughey is the chair of both the SAE and AIAG committees to ensure a consistent application of the DRBFM process within both documents.

Good design edit

The basis for reliability is not to change a design; therefore, Mr. Yoshimura believes that if a design changes, the change should occur in small increments. Disturbance to a design is caused by the discontinuity of implementing changes affecting the interfaces between parts and interactions between systems. The design should not be changed in two different places simultaneously, because making too many changes too fast has the potential to result in failures faster than our capacity to detect them. One key to successful change is to make changes visible.

Good discussion edit

In discussions we should concentrate on the proposed changes to a design. If a proven good design is applied to future products, then the risk of failure is low; however, if changes are made to the existing design, then the probability of failure is increased.

Mr. Yoshimura advises individuals to work to understand the changes as opposed to trivializing them. He also advises that validation testing can help to identify design weaknesses; but, he also states that good discussions held at preliminary design reviews can achieve the same result. The good discussion that Mr. Yoshimura refers to here is also known as DRBFM (Design Review Based on Failure Modes).

The analysis for DRBFM is modeled after a linkage between a good design review and FMEA. A comprehensive, well-done FMEA can be considered one of the inputs (plus many other preparations sheets defined in the methodology) to decide the scope of a DRBFM but an FMEA is not required since the focus is based on the changes and interfaces. DRBFM is implemented based on novelty of change at any level of the product (design, process, supplier, etc.). The intent of the DRBFM is to make these changes visible by discussing them at length, as well as every possible concern for failure that may potentially occur - anything that impacts quality, cost, or delivery.

Good dissection edit

The third part of the GD3 concept. One objective of a good design review is to examine the results of validation testing, making all product weaknesses visible. This examination involves applying another GD3 concept, design review based on test results (DRBTR). When applying DRBTR, we must, wherever possible, observe the product test before, during and after completion. DRBTR looks for the validation (test) engineer to lead the review of a DRBTR review to exam the tested part and look for buds of problems that are about to happen (test failures are evident). DRBTR encourages the designer and test engineer to discuss potential problems (observations) or weaknesses from a cross functional multi-perspective approach, and to share this information. DRBTR has the designer observing actual test pieces and discussing test results in open discussions, such as design reviews. Furthermore, when dissecting test results, one must consider manufacturing variation, test profile and expected quality and reliability targets of the product. This process is defined in detail in Bill Haughey's e-book.[2]

See also edit

Notes and references edit

  1. ^ J2886 : "Design Review Based on Failure Modes (DRBFM)". SAE. 2013-03-05. Retrieved 2020-09-08.
  2. ^ Haughey, Bill (2012-04-30). Design Review Based on Failure Modes (DRBFM) and Design Review Based on Test Results (DRBTR) Process Guidebook. SAE. p. 85. ISBN 978-0-7680-7642-4. Retrieved 2020-09-08. PD251136
  3. ^ "Design Review Based on Failure Modes (DRBFM) and Design Review Based on Test Results (DRBTR) Process Guidebook".

External links edit

  • SAE Ebook Design Review Based on Failure Modes (DRBFM) and Design Review Based on Test Results (DRBTR) Process Guidebook
  • SAE J2886 DRBFM Recommended Practice

January 01, 1970
design, review, based, failure, mode, topic, this, article, meet, wikipedia, general, notability, guideline, please, help, demonstrate, notability, topic, citing, reliable, secondary, sources, that, independent, topic, provide, significant, coverage, beyond, m. The topic of this article may not meet Wikipedia s general notability guideline Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention If notability cannot be shown the article is likely to be merged redirected or deleted Find sources Design review based on failure mode news newspapers books scholar JSTOR May 2013 Learn how and when to remove this message Design review based on failure mode DRBFM is a tool originally developed by the Toyota Motor Corporation This tool was developed based on the philosophy that design problems occur when changes are made to existing engineering designs that have already been proven successful Contents 1 Methodology 1 1 Good design 1 2 Good discussion 1 3 Good dissection 2 See also 3 Notes and references 4 External linksMethodology editDRBFM methodology was developed by Tatsuhiko Yoshimura a Quality Expert and a professor at Japan s Kyushu University Yoshimura knew that design problems occur when changes are made without the proper level of supporting documentation Using the philosophy of preventative measures Mizenboushi he created his own philosophy of DRBFM Dr Tatsuhiko Yoshimura supported the development and usage of DRBFM at many companies He believes companies that implement the usage of DRBFM will be a better company He believes the implementation of DRBFM requires discipline and engagement of everyone to the one goal of adding value to the customer by meeting engineering functional requirements and customer expectations The philosophy of DRBFM centers on three concepts Good design Good discussion Good dissection The DRBFM methodology is now a recognized documented process by SAE Society of Automotive Engineers and also by AIAG Automotive Industry Action Group SAE J2886 1 DRBFM Recommended Practice was published in 2013 and the AIAG DRBFM Reference Guide was published in September 2014 Bill Haughey is the chair of both the SAE and AIAG committees to ensure a consistent application of the DRBFM process within both documents Good design edit The basis for reliability is not to change a design therefore Mr Yoshimura believes that if a design changes the change should occur in small increments Disturbance to a design is caused by the discontinuity of implementing changes affecting the interfaces between parts and interactions between systems The design should not be changed in two different places simultaneously because making too many changes too fast has the potential to result in failures faster than our capacity to detect them One key to successful change is to make changes visible Good discussion edit In discussions we should concentrate on the proposed changes to a design If a proven good design is applied to future products then the risk of failure is low however if changes are made to the existing design then the probability of failure is increased Mr Yoshimura advises individuals to work to understand the changes as opposed to trivializing them He also advises that validation testing can help to identify design weaknesses but he also states that good discussions held at preliminary design reviews can achieve the same result The good discussion that Mr Yoshimura refers to here is also known as DRBFM Design Review Based on Failure Modes The analysis for DRBFM is modeled after a linkage between a good design review and FMEA A comprehensive well done FMEA can be considered one of the inputs plus many other preparations sheets defined in the methodology to decide the scope of a DRBFM but an FMEA is not required since the focus is based on the changes and interfaces DRBFM is implemented based on novelty of change at any level of the product design process supplier etc The intent of the DRBFM is to make these changes visible by discussing them at length as well as every possible concern for failure that may potentially occur anything that impacts quality cost or delivery Good dissection edit The third part of the GD3 concept One objective of a good design review is to examine the results of validation testing making all product weaknesses visible This examination involves applying another GD3 concept design review based on test results DRBTR When applying DRBTR we must wherever possible observe the product test before during and after completion DRBTR looks for the validation test engineer to lead the review of a DRBTR review to exam the tested part and look for buds of problems that are about to happen test failures are evident DRBTR encourages the designer and test engineer to discuss potential problems observations or weaknesses from a cross functional multi perspective approach and to share this information DRBTR has the designer observing actual test pieces and discussing test results in open discussions such as design reviews Furthermore when dissecting test results one must consider manufacturing variation test profile and expected quality and reliability targets of the product This process is defined in detail in Bill Haughey s e book 2 See also editDesign Review Based on Test Results DRBTR 3 Failure mode and effects analysis FMEA DFMEA Design reviewNotes and references edit J2886 Design Review Based on Failure Modes DRBFM SAE 2013 03 05 Retrieved 2020 09 08 Haughey Bill 2012 04 30 Design Review Based on Failure Modes DRBFM and Design Review Based on Test Results DRBTR Process Guidebook SAE p 85 ISBN 978 0 7680 7642 4 Retrieved 2020 09 08 PD251136 Design Review Based on Failure Modes DRBFM and Design Review Based on Test Results DRBTR Process Guidebook External links editSAE Ebook Design Review Based on Failure Modes DRBFM and Design Review Based on Test Results DRBTR Process Guidebook SAE J2886 DRBFM Recommended Practice Retrieved from https en wikipedia org w index php title Design review based on failure mode amp oldid 1096307458, wikipedia, wiki, book, books, library,

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