کاربرد FMEA و مزایای آن

FMEA Usage

Historically, engineers have done a good job of evaluating the functions and the form of products and processes in the design phase. They have not always done so well at designing in reliability and quality. Often the engineer uses safety factors as a way of making sure that the design will work and protected the user against product or process failure. As described in a recent article:

"A large safety factor does not necessarily translate into a reliable product. Instead, it often leads to an overdesigned product with reliability problems."

Failure Analysis Beats Murphey's Law
Mechanical Engineering , September 1993

FMEA's provide the engineer with a tool that can assist in providing reliable, safe, and customer pleasing products and processes. Since FMEA help the engineer identify potential product or process failures, they can use it to:

• Develop product or process requirements that minimize the likelihood of those failures.
• Evaluate the requirements obtained from the customer or other participants in the design process to ensure that those requirements do not introduce potential failures.
• Identify design characteristics that contribute to failures and design them out of the system or at least minimize the resulting effects.
• Develop methods and procedures to develop and test the product/process to ensure that the failures have been successfully eliminated.
• Track and manage potential risks in the design. Tracking the risks contributes to the development of corporate memory and the success of future products as well.
• Ensure that any failures that could occur will not injure or seriously impact the customer of the product/process.

Benefits of FMEA

FMEA is designed to assist the engineer improve the quality and reliability of design. Properly used the FMEA provides the engineer several benefits. Among others, these benefits include:

• Improve product/process reliability and quality
• Increase customer satisfaction
• Early identification and elimination of potential product/process failure modes
• Prioritize product/process deficiencies
• Capture engineering/organization knowledge
• Emphasizes problem prevention
• Documents risk and actions taken to reduce risk
• Provide focus for improved testing and development
• Minimizes late changes and associated cost
• Catalyst for teamwork and idea exchange between function

برچسبها: FMEA, مهران مهدی زاده, FMEA Benefits, FMEA Usages