MTBF Demonstration

Presenter: Dr Chris Jackson

7-8 February 2024

The course will be delivered virtually.

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Course Aim

This Mean Time Between Failure (MTBF) Demonstration Course teaches students when an MTBF demonstration test is relevant, what it achieves, how to plan it and how MTBF is NOT reliability. The methodology aligns with the principles in MIL-STD-781 Reliability Test Methods, Plans and Environments for Engineering Development, Qualification and Production. All forms of reliability (related) demonstration testing involves ‘statistical confidence’ that comes as resource and planning costs. Students will be taught about these costs, understand how random processes drive ‘confidence’ (and risk) in demonstration test conclusions and how to optimize test planning to maximize ‘decision actionable information.’ This course also provides students with their own MTBF Demonstration Test Planning Tool (Microsoft Excel) that simplifies test planning.

Students who need to plan, oversee and implement MTBF demonstration testing will benefit from this course.


Course Outline

Introduction | What is the MTBF? | Random variable basics | Confidence and MTBF specifications | MTBF demonstration test planning | Common issues with MTBF test plans | Probability-Ratio Sequential Testing (PRST) | Class exercise

Course Material

The following resources will be provided to attendees of this course:

  1. An editable PDF course workbook

  2. MTBF Demonstration Testing Template (Microsoft Excel) – licensed for student use only