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Maximize System Reliability with Failure Modes and Effects Analysis

Learn how Failure Modes and Effects Analysis (FMEA) helps identify potential failures in a system, rate hazards, and mitigate risks through process and design FMEA. Understand the significance of FMEA in improving product quality and reliability.

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Maximize System Reliability with Failure Modes and Effects Analysis

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  1. Failure Modes and Effects Analysis Chapter 22

  2. Failure Modes and Effects Analysis • Failure Modes and Effects (FMEA) • Critically examine the system • Divide the system into its various components • Examine each individual component • Record the ways the component may fail • Rate potential degree of hazard • Examine all potential failures for each individual component and decide what effect the failures may have • Weakness: Human Error Component Missing • See additional notes

  3. Failure Modes and Effects Analysis • Failure Modes and Effects Analysis • Design FMEA’s • used to verify that a product has been properly designed to meet all of the customer’s requirements and that it can be manufactured at a target rate, cost, and yield. • Process FMEA’s • used to assess the adequacy of a process in producing a product.

  4. Failure Modes and Effects Analysis • What are Design FMEA’s used for? • To capture the relationship between: • customer requirements and • how a product can fail to meet these requirements and • the effects of the failures and • the problems with the design that cause the failures. • As a method to ensure that the design will be changed and tested so that the failures do not occur.

  5. Failure Modes and Effects Analysis • What are Process FMEA’s used for? • To identify the process and product controls that must be implemented to ensure that the product can be produced within specification.

  6. Failure Modes and Effects Analysis • What are Process FMEA’s used for? • To capture the relationship between • each process step and • the unacceptable process outputs that can be created at each step and • the effects of the unacceptable process outputs and • the causes of the unacceptable outputs and • how the unacceptable outputs will be either prevented or detected in the event that they occur.

  7. Failure Modes and Effects Analysis • Steps to Create an FMEA • Create a form similar to that shown in the chapter • Study the system, process, or part • What are the potential failure modes? • What are the potential failure causes? • What are the potential failure consequences? • What are the existing controls? • Identify Risk Priority Code • Severity • Probability of Occurrence • Analyze the document

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