Maintenance

Maintenance and Fault Simulation

Overview

Maintenance is predictive in nature. A good maintenance program is when maintenance are scheduled in advance and does not wait until something breaks.

Inspection vs. Needed Parts

In mars-sim, the inspection portion of maintenance is currently set to get started, say, a quarter of time, into its maintenance window. Inspection means simply taking a close look at the system and parts and will not generate needed parts to be swapped out.

On the other hand, if a maintenance even does create needed parts, it is a preventative measure to avoid Malfunctions.

Concept

The concept of maintenance involves a few parameters such as Wear and Tear, health condition, time since last inspection/maintenance, number of inspections, etc. Currently, the scope of both maintenance and malfunction modeling are found on the following types of entities:

Entity
Building
EVA suit
Vehicle

Wear

First of all, the wear from use over time plays into how likely an entity degrades. The simulation would track the amount of active use time for EVA suits, vehicles, and buildings and determines the amount of maintenance needed.

Needed Parts

Usually, an engineer or technician will perform maintenance task on an entity that’s due for a maintenance task.

If Needed Parts are involved, they will be pulled from the entity and may be retrofit and put back to work.