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Engine Life Optimizer (ELO)

Example 1

System

Inputs

Outputs

Engine

______________

xxx184

Simulation of Engine Build

SEB was first applied to determine the
unit cost for the decisions that were
made without using ELO to optimize
the engine lifetime.

Reliability Data

Utilization

Cost Data - Engine

Engine Type Composition

Engine Profile

Unit cost analysis

chart

Minimum Build Optimizer

MBO was then used to identify the
life-limited parts replacement that would
result in lowering the unit cost. This is
done in two steps:

(1) Identify optimum minimum build that
      results in the least unit cost.

(2) Apply SEB after replacement decisions
      are made based on the least unit cost
      minimum build in Step (1).

Reliability Data

Utilization

Cost Data - Engine

Engine Type Composition

Replacement Data

Engine Profile for MBO

Least-cost minimum build

Unit cost analysis

chart

chart

Benefit:

Applying ELO resulted in reducing the unit cost by $22.65 per flying hour ($37.59 per cycle).