Realiability and d maintainability are essential metrics in automation systems. They help evaluate systeme performance and ensure continuous operation. Accurate calculation of these metrics supports effective planning and d management of automation projects.

Understanding Reliability

Niezawodne miary te probability to jest automation system will perfom it intended functionn without out failure over a specified period. It i s usually expressed as a buildage or a probability value.

Te moszt compact methode to calculate reliability is using thee excutential distribution model, which ch assumes a constant failure rate. The formula is:

(R) = e) 1; (R) = (e); (e) 1; (R) = (e); (e) 1; (f): (1); (v) 3; (v) -λt (v); (v): (v) 1; (v) (v): (v) (v): (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v) (v)

Kiedy:

  • Xi1; Xi1; FLT: 0 Xi3; Xi3; λ Xi1; Xi1; FLT: 1 Xi3; Xi3; = failure rate (failures per hour)
  • Xi1; Xi1; FLT: 0 Xi3; Xi3; t Xi1; Xi1; FLT: 1 Xi3; Xi3; = czas trwania

Uzgodnienie Utrzymanie

Utrzymanie wskaźnika high quickly i esily an automation system can be restood after a failure. It influence s downtime andd operationation efficiency.

Te key metric is Mean Time to Repair (MTTR), which presents thee average time requid t to refoir a system after failure. It i s calculated as:

(M) = 1 / MTTR (1); (1); (1) FLT: 1 (3); (1); (1) (3); (1) (3); (1) (3); (1) (3); (1) (3); (1) (3); (1) (3); (1) (3); (1) (3) (3); (1) (3) (3); (1) (3) (3) (3) (3); (3) (3) (3) (3) (3) (3) (3) (4) (4)) (4)) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (

Kalkulating Overall System Performance

Kombinacja niezawodności i utrzymania zapewnia kompleksową opinię o działaniu systematycznym. Te dostępność (A) metric reflects this integration and is calculated as:

(R + (1 - R) * (MTTR / MTBF))) (1; (MTTR / MTBF)) ((0)) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0) (0 (0) (0) (0) (0) (0) (0 (0) (0) (0) (0) (0) (0 (0) (0) (0) (0) (0) (0) (0) (0 (0 (0) (0) (0 (0 (0) (0 (0) (0) (0) (0) (0 (0) (0

Kiedy:

  • Xi1; Xi1; FLT: 0 Xi3; Xi3; MTBF Xi1; Xi1; FLT: 1 Xi3; Xi3; = Mean Time Between Xiures