Mean Time Between Failures stands for and why it's used in robot reliability planning?

• A. Maximum Time Before Failure; used to schedule downtime
• B. Mean Time Between Failures; used to estimate uptime and guide maintenance scheduling
• C. Mean Time Before Fix; used for repair scheduling
• D. Maintenance Time Baseline Factor; used for budgeting

Answer: (B)

Mean Time Between Failures is a reliability metric that describes the average time a robot operates before a failure occurs. It’s calculated from actual operation data, typically as total operating time divided by the number of observed failures. In robot reliability planning, MTBF helps estimate how long the system will run before needing attention, so you can schedule preventive maintenance, plan downtime, and size spare parts and maintenance resources accordingly. It guides decisions to keep production available and to improve design or components if MTBF is too short. It’s about the expected uptime between failures, not a maximum time or a fix time.