The role and responsibility of reliability engineers change with project milestones. During the design phase, reliability engineers define reliability targets, lead teams to review design weakness, brainstorm potential failure mode and root cause, define test plan, customize stress profile, allocate samples, and prepare for test program and test equipment. During the development phase, reliability engineers execute the test, analyze data by fitting life distribution and doing hypothesis tests, and drive failure analysis and corrective action. Once a product is released to market, reliability engineers work on field return and warranty analysis. This chapter covers some of these topics, including risk assessment methodologies (failure mode and effect analysis, fault tree analysis and stress-strength analysis), accelerated life testing and highly accelerated life testing, reliability statistics (sample size calculation, life distribution analysis by Linear least square regression and Maximum likelihood estimation, confidence interval calculation, hypothesis tests for mean and variance), failure analysis and corrective/preventive actions, system reliability metrics, reliability block diagram methods, and repairable system. Various case studies are used to illustrate the ideas, including cameras, cold plates, dash mount audio device, LED display, Lidar bracket, magnetic sensor, network and multimedia PCB boards, power supplies, Radar, and waterblock.
Role and Responsibility of Hardware Reliability Engineer
Advanced Driver Assistance Systems and Autonomous Vehicles ; Chapter : 13 ; 443-533
2022-10-28
91 pages
Article/Chapter (Book)
Electronic Resource
English
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