Next Generation HALT and HASS

Next Generation HALT and HASS
Author: Kirk A. Gray
Publisher: John Wiley & Sons
Total Pages: 298
Release: 2016-05-23
Genre: Technology & Engineering
ISBN: 1118700236

NEXT GENERATION HALT AND HASS ROBUST DESIGN OF ELECTRONICS AND SYSTEMS A NEW APPROACH TO DISCOVERING AND CORRECTING SYSTEMS RELIABILITY RISKS Next Generation HALT and HASS presents a major paradigm shift from reliability prediction-based methods to discovery of electronic systems reliability risks. This is achieved by integrating highly accelerated life test (HALT) and highly accelerated stress screen (HASS) into a physics of failure based robust product and process development methodology. The new methodologies challenge misleading and sometimes costly misapplication of probabilistic failure prediction methods (FPM) and provide a new deterministic map for reliability development. The authors clearly explain the new approach with a logical progression of problem statement and solutions. The book helps engineers employ HALT and HASS by demonstrating why the misleading assumptions used for FPM are invalid. Next, the application of HALT and HASS empirical discovery methods to quickly find unreliable elements in electronics systems gives readers practical insight into the techniques. The physics of HALT and HASS methodologies are highlighted, illustrating how they uncover and isolate software failures due to hardware–software interactions in digital systems. The use of empirical operational stress limits for the development of future tools and reliability discriminators is described. Key features: Provides a clear basis for moving from statistical reliability prediction models to practical methods of insuring and improving reliability. Challenges existing failure prediction methodologies by highlighting their limitations using real field data. Explains a practical approach to why and how HALT and HASS are applied to electronics and electromechanical systems. Presents opportunities to develop reliability test discriminators for prognostics using empirical stress limits. Guides engineers and managers on the benefits of the deterministic and more efficient methods of HALT and HASS. Integrates the empirical limit discovery methods of HALT and HASS into a physics of failure based robust product and process development process.

Design Review Based on Failure Modes (DRBFM)

Design Review Based on Failure Modes (DRBFM)
Author: Automotive Quality and Process Improvement Committee
Publisher:
Total Pages: 0
Release: 2023
Genre:
ISBN:

SAE J2886 Design Review Based on Failure Modes (DRBFM) Recommended Practice is intended for Automotive and Non-Automotive applications. It describes the basic principles and processes of DRBFM including planning, preparation, change point FMEA, design reviews, decisions based on actions completed, and feedback loops to other processes, such as design, validation and process guidelines (Appendix B - DRBFM Process Map).The intent of each fundamental step of the DRBFM methodology is presented. It is intended for use by organizations whose product development processes currently (or intend to) use Failure Mode & Effects Analysis (FMEA) or DRBFM as a tool for assessing the potential risk and reliability of system elements (product or process) or as part of their product improvement processes.DRBFM is not intended to replace FMEA however, companies interested in adopting DRBFM will benefit from the focus on specific change points and supporting engineering decisions based on detailed discussions. DRBFM is a change in company culture that requires management commitment to changing the mind set of employees to drill deep and continually ask the question "What Else". The DRBFM user is responsible for following this recommended practice as well as corporate policies. Alternative documentation formats are provided to meet the intent of the recommended practice. Design Review Based on Failure Modes (DRBFM) has been adopted by both automotive and non-automotive companies. There is a growing demand for DRBFM information since these companies expect their global supply base to utilize the process as well. As with FMEA, companies tend to use slight variations of the process which can cause complexity for suppliers that support multiple companies. Development of a recommended practice (SAE J2886) has been supported by users of DRBFM from both manufactures and suppliers. SAE J2886 Design Review Based on Failure Modes (DRBFM) Recommended Practice will provide a common approach to the implementation of the methodology. SAE J2886 has been reaffirmed to comply with the SAE Five-Year Review policy.

Effective FMEAs

Effective FMEAs
Author: Carl S. Carlson
Publisher: John Wiley & Sons
Total Pages: 462
Release: 2012-04-11
Genre: Technology & Engineering
ISBN: 1118312589

Outlines the correct procedures for doing FMEAs and how to successfully apply them in design, development, manufacturing, and service applications There are a myriad of quality and reliability tools available to corporations worldwide, but the one that shows up consistently in company after company is Failure Mode and Effects Analysis (FMEA). Effective FMEAs takes the best practices from hundreds of companies and thousands of FMEA applications and presents streamlined procedures for veteran FMEA practitioners, novices, and everyone in between. Written from an applications viewpoint—with many examples, detailed case studies, study problems, and tips included—the book covers the most common types of FMEAs, including System FMEAs, Design FMEAs, Process FMEAs, Maintenance FMEAs, Software FMEAs, and others. It also presents chapters on Fault Tree Analysis, Design Review Based on Failure Mode (DRBFM), Reliability-Centered Maintenance (RCM), Hazard Analysis, and FMECA (which adds criticality analysis to FMEA). With extensive study problems and a companion Solutions Manual, this book is an ideal resource for academic curricula, as well as for applications in industry. In addition, Effective FMEAs covers: The basics of FMEAs and risk assessment How to apply key factors for effective FMEAs and prevent the most common errors What is needed to provide excellent FMEA facilitation Implementing a "best practice" FMEA process Everyone wants to support the accomplishment of safe and trouble-free products and processes while generating happy and loyal customers. This book will show readers how to use FMEA to anticipate and prevent problems, reduce costs, shorten product development times, and achieve safe and highly reliable products and processes.

Design Review Based on Failure Mode

Design Review Based on Failure Mode
Author: Mohammed Hamed Ahmed Soliman
Publisher: personal-lean.org
Total Pages: 76
Release: 2024-04-07
Genre: Business & Economics
ISBN:

Toyota doesn't just make high-quality products; they also have a process for making sure everything they do is high-quality. Next time you want to say Toyota isn't that great, think about how their way of doing things could help you make better quality products. Reliability is about having a product or service that can be trusted is really important for making customers happy. This means that the product will work the way the customer wants it to, and it will keep working well for a long time. Quality experts are basically saying that it is very important to focus on improving quality in all aspects of a business. They believe that businesses should prioritize quality in order to be successful. The more complicated the product is, the harder this task gets. Before World War II, the military, aerospace, and aircraft industries used the failure mode and effect analysis (FMEA) approach. Toyota then invented its production system after the war. FMEA has been around since the middle of the 20th century, especially in the aerospace and military industries. FMEA was made in the 1940s and used by the U.S The military works to find and fix problems in production before they happen. The method worked well, so NASA used it for different projects like Apollo and Voyager in the 1960s. Nowadays Six Sigma's project team use FMEA in the Analyze stage of DMAIC because extraordinary quality is not only designed into the product, it is designed into the development process itself. The DRBFM methodology was created by Tatsuhiko Yoshimura, who is an expert in quality and a professor at Kyushu University in Japan. Yoshimura understood that making changes without the right documents can cause design problems. He used the idea of preventing problems before they happen to come up with his own way of thinking called DRBFM.

Failure Mode and Effect Analysis

Failure Mode and Effect Analysis
Author: D. H. Stamatis
Publisher: Quality Press
Total Pages: 633
Release: 2003-01-01
Genre: Science
ISBN: 0873895983

Author D. H. Stamatis has updated his comprehensive reference book on failure mode and effect analysis (FMEA). This is one of the most comprehensive guides to FMEA and is excellent for professionals with any level of understanding. This book explains the process of conducting system, design, process, service, and machine FMEAs, and provides the rationale for doing so. Readers will understand what FMEA is, the different types of FMEA, how to construct an FMEA, and the linkages between FMEA and other tools. Stamatis offer a summary of tools/methodologies used in FMEA along with a glossary to explain key terms and principles. the updated edition includes information about the new ISO 9000:2000 standard, the Six Sigma approach to FMEA, a special section on automotive requirements related to ISO/TS 16949, the orobustnesso concept, and TE 9000 and the requirements for reliability and maintainability. the accompanying CD-ROM offers FMEA forms and samples, design review checklist, criteria for evaluation, basic reliability formulae and conversion failure factors, guidelines for RPN calculations and designing a reasonable safe product, and diagrams, and examples of FMEAs with linkages to robustness.

Potential Failure Mode and Effects Analysis in Design (Design FMEA) and Potential Failure Mode and Effects Analysis in Manufacturing and Assembly Processes (Process FMEA) Reference Manual

Potential Failure Mode and Effects Analysis in Design (Design FMEA) and Potential Failure Mode and Effects Analysis in Manufacturing and Assembly Processes (Process FMEA) Reference Manual
Author: Automotive Quality and Process Improvement Committee
Publisher:
Total Pages: 0
Release: 2000
Genre:
ISBN:

This SAE Recommended Practice was jointly developed by Chrysler, Ford and General Motors under the sponsorship of the United States Council for Automotive Research (USCAR). This document introduces the topic of potential Failure Mode and Effects Analysis (FMEA) and gives general guidance in the application of the technique. An FMEA can be described as a systemized group of activities intended to: (a) recognize and evaluate the potential failure of a product/process and its effects, (b) identify actions which could eliminate or reduce the chance of the potential failure occurring, and (c) document the process. It is complementary to the design process of defining positively what a design must do to satisfy the customer.

Potential Failure Mode and Effects Analysis in Design (Design FMEA), Potential Failure Mode and Effects Analysis in Manufacturing and Assembly Processes (Process FMEA)

Potential Failure Mode and Effects Analysis in Design (Design FMEA), Potential Failure Mode and Effects Analysis in Manufacturing and Assembly Processes (Process FMEA)
Author: Automotive Quality and Process Improvement Committee
Publisher:
Total Pages: 0
Release: 2009
Genre:
ISBN:

This FMEA Standard describes Potential Failure Mode and Effects Analysis in Design (DFMEA) and Potential Failure Mode and Effects Analysis in Manufacturing and Assembly Processes (PFMEA). It assists users in the identification and mitigation of risk by providing appropriate terms, requirements, ranking charts, and worksheets. As a Standard, this document contains requirements "must" and recommendations "should" to guide the user through the FMEA process. The FMEA process and documentation must comply with this Standard as well as any corporate policy concerning this Standard. Documented rationale and agreement with the customer is necessary for deviations in order to justify new work or changed methods during customer or third-party audit reviews. Widespread use of design and process FMEA is a benefit to consumers and manufacturers. The application of FMEA has been in place in the automotive industry since the late 1960's with emphasis on standard ranking criteria and forms since the early 1990's. The FMEA methodology has proven itself useful in the prevention and mitigation of potential failure modes. However, a growing need developed for improved failure mode ranking criteria and a change in thinking about the use of the Risk Priority Number (RPN). This standard includes updated ranking charts and de-emphasizes the use of an RPN threshold as the primary factor in determining preventive or corrective action efforts. It also includes a Boundary Diagram and Process Flow Diagram example as use of these tools has increased. The section for Potential Failure Mode and Effects Analysis for Machinery (Machinery FMEA) is a form of Design FMEA and has been removed. Machinery FMEA is a type of Design FMEA for equipment. There are numerous books, reference manuals and training references on the subject of FMEA. This standard serves as a common starting point for the development of an effective DFMEA and PFMEA.