Table 12 Basic maintenance time measurement results and comparison of three groups
From: A maintenance time prediction method considering ergonomics through virtual reality simulation
Num | Item name | |||||||
|---|---|---|---|---|---|---|---|---|
Basic maintenance work | Basic MOD value | Basic consumption time/s | Proportion for actual time (%) | Corrective MOD value | Corrective consumption time/s | Proportion for actual time (%) | Actual consumption time/s | |
1 | Going up the 788operation platform | 595 | 76.755 | 90.542 | 639 | 82.431 | 97.237 | 84.773 |
2 | Opening seven cap locks | 235 | 30.315 | 80.599 | 282 | 36.378 | 96.719 | 37.612 |
3 | Opening the left side cabin door | 55 | 7.095 | 62.788 | 78 | 10.062 | 89.044 | 11.300 |
4 | Opening the right side cabin door | 55 | 7.095 | 70.5 | 78 | 10.062 | 89.044 | 11.300 |
5 | Screwing 8 hexagon bolts | 415 | 53.535 | 50.702 | 837 | 107.973 | 102.260 | 105.587 |
6 | Screwing APU | 18 | 2.322 | 61.920 | 25 | 3.225 | 86 | 3.750 |
7 | Moving cables | 49 | 6.321 | 59.380 | 74 | 9.546 | 89.676 | 10.465 |
8 | Putting APU to the operation platform | 149 | 19.221 | 61.028 | 233 | 30.057 | 95.483 | 31.479 |
Total | Â | 1571 | 202.659 | 68.404 | 2246 | 289.734 | 97.795 | 296.266 |