A New Maintainability Evaluation Method Based on Virtual-real Fusion Scene Construction
Table 3
Evaluation value and standard of operating space index.
The evaluation criteria of operating space index
The value of operating space index
There are no difficulties in maintenance operation and there are no obstacles in the maintenance process
0.8–1.0
The maintenance operation is less difficult and there are a few obstacles in the maintenance process, which has a small impact on the operation space
0.7
The maintenance operation is generally difficult and there are some obstacles in the maintenance process, which limits the activity range of maintenance tools/hands to a certain extent
0.5
The maintenance operation is very difficult and there are many obstacles in the maintenance process, which greatly limits the activity range of maintenance tools/hands
0.3
The maintenance operation cannot be carried out and the maintenance process is blocked by obstacles
