Pålitelighetsdrevet

Pålitelighetsdrevet is a Norwegian term describing a design and development approach in which reliability is the primary criterion guiding decisions throughout the product life cycle. It is used across engineering disciplines and systems engineering to ensure that products and services perform as intended under expected operating conditions and over time.

The approach emphasizes early establishment of reliability requirements and uses reliability-centered methods such as failure modes and effects analysis (FMEA) and fault tree analysis (FTA). It integrates design-for-reliability, redundancy, fault tolerance, and modular architectures to enhance resilience. RAMS considerations (reliability, availability, maintainability, and safety) guide architecture, testing, and qualification, with reliability analysis embedded in planning and reviews.

Across the life cycle, data collection and analysis are essential. Field failure data, manufacturing data, and reliability metrics like MTBF and MTTR inform reliability growth, prognostics, and predictive maintenance. Testing strategies include accelerated life and stress testing, aim to demonstrate reliability requirements, and verify that maintenance concepts meet expected availability targets.

Applications of pålitelighetsdrevet practice span aerospace, automotive, industrial automation, software systems, and critical infrastructure. Benefits include reduced downtime, improved safety, lower total cost of ownership, and higher stakeholder confidence. Challenges involve higher upfront costs, the need for robust data infrastructure, potential organizational resistance, and ensuring alignment with relevant standards and regulations.

Relatert terminology and frameworks include reliability-centered design, RAMS engineering, and safety-critical engineering. Standards commonly referenced alongside pålitelighetsdrevet work include ISO 15288 for systems engineering, ISO 26262 for road vehicles, and IEC 61508 for functional safety.