How to use data from connected devices for derivation of mission profiles
Abstract
Enrico and Fred discuss the value of using real-world usage data to define mission profiles, advocating for a shift from deterministic to stochastic approaches. They touch on the impact of environmental conditions, the risk of selection bias in data analysis, and weigh the cost-benefit of using connected devices to improve design and reliability decisions.
Key Points
Topics include:
Importance of Evaluating Real Usage for Mission Profiles
- Emphasized the need to base mission profiles on real-world usage rather than assumptions or specifications.
- Highlighted how inaccurate assumptions can lead to over- or under-designed components.
Shift from Deterministic to Stochastic Approaches
- Discussed the limitations of deterministic methods that rely on fixed worst-case values.
- Advocated for using statistical distributions to represent real-world variability in loads and conditions.
- Stochastic modeling helps in better understanding risk and optimizing designs.
Environmental Conditions Matter
- Explored how temperature, humidity, and other environmental factors significantly influence component reliability.
- Real usage data helps reveal operating conditions that differ from lab environments.
Selection Bias in Data Collection
- Talked about the risk of drawing conclusions from biased datasets—e.g., focusing only on failed products or a non-representative user group.
- Stressed the importance of capturing a broad and representative sample for analysis.
Cost-Benefit of Connected Devices
- Evaluated the investment in IoT-enabled devices for capturing usage and environmental data.
- Weighed the upfront cost of connectivity and data management against long-term savings through better product design, reduced warranty costs, and predictive maintenance.
Enjoy an episode of Speaking of Reliability. Where you can join friends as they discuss reliability topics. Join us as we discuss topics ranging from design for reliability techniques to field data analysis approaches.
- Social:
- Link:
- Embed:
Show Notes
Leave a Reply