Year: 2018 Language: English Author: London Offshore Consultants Genre: Technical report Publisher: London Offshore Consultants Format: PDF Quality: eBook Pages count: 71 Description: London Offshore Consultants (Egypt) S.A.E. was requested by Capt. Maged Safwat of Petroleum Marine Services to witness and record the FMEA DP Trials results of the DP Class 2 Crane barge PMS 17. Tamer Gamil of LOC (Egypt) attended the vessel at 1240 hrs at Suez waiting area. The trials were conducted around a position of 29˚ 47.157’ N 032˚ 29.333’ E from the 16th to 17th March 2018 in accordance with the FMEA trials document. All trials were coordinated by the Captain and witnessed by Tamer Gamil of LOC (Egypt). On the basis of the trials results, the vessel is considered fit to carry out operations equivalent to IMO DP Equipment Class 2 and DP(AA) as assigned by LR within its defined operating limits when the DP system is configured as tested during trials and noted in section 2.9 of this report. Although the trials program has been developed for the vessel owner/operator, it is essential that the program itself be owned by the vessel and form part of its safety management systems and be subject to the vessel owner’s / operator’s procedures for control and amendment of such documents.
Contents
Summary .............................................................. 3 1. Trials preparation & scope ........................................ 7 1.1. Introduction .................................................... 7 1.2. Scope of work ................................................... 7 1.3. Conduct of work ................................................. 8 1.4. Purpose of fmea DP proving trials ............................... 9 1.5. Purpose of the DP annual trials ................................. 9 1.6. Scope of DP assessment .......................................... 9 1.7. Rules of testing ................................................ 9 2. Vessel particulars ................................................ 11 2.1. General ......................................................... 11 2.2. Power generation ................................................ 12 2.3. Thrusters ....................................................... 12 2.4. Vessel management system ........................................ 12 2.5. Vessel monitoring system ........................................ 12 2.6. DP equipment .................................................... 12 2.7. FMEA ............................................................ 13 2.8. System upgrades & modifications ................................. 13 2.9. Machinery configuration during trials ........................... 13 2.10. Worst case failure design intent ............................... 14 2.11. Critical activity mode configuration ........................... 14 2.12. Task appropriate mode .......................................... 14 2.13. Vessel DP capability ........................................... 14 3. Conclusion & comments from trials ................................. 15 3.1. Conclusions ..................................................... 15 3.2. Power generation ................................................ 15 3.3. Power distribution .............................................. 15 3.4. Power management system ......................................... 15 3.5. Control systems ................................................. 15 3.6. Environmental & heading sensors ................................. 15 3.7. Position references ............................................. 15 3.8. DP control ...................................................... 16 3.9. Personnel ....................................................... 16 4. Findings .......................................................... 17 4.1. Explanation ..................................................... 17 4.2. Outstanding concerns from the previous proving trials report .... 17 4.3. Findings – Category A ........................................... 18 4.4. Findings – Category B ........................................... 18 4.5. Findings – Category C ........................................... 19 Appendix A maintenance status report ................................. 20 1. Propulsion & thrusters ............................................ 21 2. Diesel generators ................................................. 21 3. Switchboard maintenance ........................................... 21 4. DP sensors ........................................................ 22 5. DP computer & IJS ................................................. 22 6. UPS ............................................................... 22 7. DP documentation .................................................. 23 8. Hardware modifications ............................................ 23 9. Capability plots .................................................. 24 10. DP incidents ..................................................... 24 11. Pre-trial check .................................................. 24 Appendix B five-yearly DP trials test reports ........................ 25 Test no.1 Software status ............................................ 26 Test no.2 Communications ............................................. 27 Test no.3 DP mode system ............................................. 28 Test no.4 DP PRS offsets & position control .......................... 29 Test no.5 DGPS1 failures ............................................. 34 Test no.6 DGPS2 failures ............................................. 35 Test no.7 Fanbeam failures ........................................... 36 Test no.8 Taut wire failures ......................................... 37 Test no.9 Hydro-acoustic HIPAP failures .............................. 38 Test no.10 Radius 1000 failures ...................................... 39 Test no.11 Artemis MK 5 failures ..................................... 40 Test no.12 Heading control and heading out of limit alarms ........... 41 Test no.13 Gyro sensor failures ...................................... 42 Test no.14 MRU's signal failure tests ................................ 43 Test no.15 Wind sensor failures ...................................... 44 Test no.16 DP network tests .......................................... 45 Test no.17 DP controller and os’s failures ........................... 46 Test no.18 Independent joystick system ............................... 47 Test no.19 DP consequence analysis ................................... 48 Test no.20 Mathematical model test.................................... 49 Test no.21 Thruster emergency stop ................................... 50 Test no.22 DP UPS 1 .................................................. 51 Test no.23 DP UPS 2 .................................................. 52 Test no.24 Bow thruster T1 (PS) signal failure ....................... 53 Test no.25 Bow thruster T2 (STBD) signal failure ..................... 55 Test no.26 Stern thruster T3 (PS) signal failure ..................... 57 Test no.27 Stern thruster T4 (STBD) signal failure ................... 59 Test no.28 DP cards signal failure ................................... 61 Test no.29 Main 380/220v/110v distributions failure .................. 63 Test no.30 Main switch board black blackout .......................... 64 Test no.31 Diesel generators emergency stop .......................... 65 Test no.32 Thruster engine ECM ....................................... 66 Test no.33 24 VDC distribution ....................................... 67 Test no.34 Thruster hydraulic ........................................ 68 Test no.35 Alarm panels .............................................. 69 Test no.36 Thruster performance test ................................. 70
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PMS 17 Five-Yearly FMEA DP Trials Review
Language: English
Author: London Offshore Consultants
Genre: Technical report
Publisher: London Offshore Consultants
Format: PDF
Quality: eBook
Pages count: 71
Description: London Offshore Consultants (Egypt) S.A.E. was requested by Capt. Maged Safwat of Petroleum Marine Services to witness and record the FMEA DP Trials results of the DP Class 2 Crane barge PMS 17.
Tamer Gamil of LOC (Egypt) attended the vessel at 1240 hrs at Suez waiting area. The trials were conducted around a position of 29˚ 47.157’ N 032˚ 29.333’ E from the 16th to 17th March 2018 in accordance with the FMEA trials document.
All trials were coordinated by the Captain and witnessed by Tamer Gamil of LOC (Egypt).
On the basis of the trials results, the vessel is considered fit to carry out operations equivalent to IMO DP Equipment Class 2 and DP(AA) as assigned by LR within its defined operating limits when the DP system is configured as tested during trials and noted in section 2.9 of this report.
Although the trials program has been developed for the vessel owner/operator, it is essential that the program itself be owned by the vessel and form part of its safety management systems and be subject to the vessel owner’s / operator’s procedures for control and amendment of such documents.
Contents
1. Trials preparation & scope ........................................ 7
1.1. Introduction .................................................... 7
1.2. Scope of work ................................................... 7
1.3. Conduct of work ................................................. 8
1.4. Purpose of fmea DP proving trials ............................... 9
1.5. Purpose of the DP annual trials ................................. 9
1.6. Scope of DP assessment .......................................... 9
1.7. Rules of testing ................................................ 9
2. Vessel particulars ................................................ 11
2.1. General ......................................................... 11
2.2. Power generation ................................................ 12
2.3. Thrusters ....................................................... 12
2.4. Vessel management system ........................................ 12
2.5. Vessel monitoring system ........................................ 12
2.6. DP equipment .................................................... 12
2.7. FMEA ............................................................ 13
2.8. System upgrades & modifications ................................. 13
2.9. Machinery configuration during trials ........................... 13
2.10. Worst case failure design intent ............................... 14
2.11. Critical activity mode configuration ........................... 14
2.12. Task appropriate mode .......................................... 14
2.13. Vessel DP capability ........................................... 14
3. Conclusion & comments from trials ................................. 15
3.1. Conclusions ..................................................... 15
3.2. Power generation ................................................ 15
3.3. Power distribution .............................................. 15
3.4. Power management system ......................................... 15
3.5. Control systems ................................................. 15
3.6. Environmental & heading sensors ................................. 15
3.7. Position references ............................................. 15
3.8. DP control ...................................................... 16
3.9. Personnel ....................................................... 16
4. Findings .......................................................... 17
4.1. Explanation ..................................................... 17
4.2. Outstanding concerns from the previous proving trials report .... 17
4.3. Findings – Category A ........................................... 18
4.4. Findings – Category B ........................................... 18
4.5. Findings – Category C ........................................... 19
Appendix A maintenance status report ................................. 20
1. Propulsion & thrusters ............................................ 21
2. Diesel generators ................................................. 21
3. Switchboard maintenance ........................................... 21
4. DP sensors ........................................................ 22
5. DP computer & IJS ................................................. 22
6. UPS ............................................................... 22
7. DP documentation .................................................. 23
8. Hardware modifications ............................................ 23
9. Capability plots .................................................. 24
10. DP incidents ..................................................... 24
11. Pre-trial check .................................................. 24
Appendix B five-yearly DP trials test reports ........................ 25
Test no.1 Software status ............................................ 26
Test no.2 Communications ............................................. 27
Test no.3 DP mode system ............................................. 28
Test no.4 DP PRS offsets & position control .......................... 29
Test no.5 DGPS1 failures ............................................. 34
Test no.6 DGPS2 failures ............................................. 35
Test no.7 Fanbeam failures ........................................... 36
Test no.8 Taut wire failures ......................................... 37
Test no.9 Hydro-acoustic HIPAP failures .............................. 38
Test no.10 Radius 1000 failures ...................................... 39
Test no.11 Artemis MK 5 failures ..................................... 40
Test no.12 Heading control and heading out of limit alarms ........... 41
Test no.13 Gyro sensor failures ...................................... 42
Test no.14 MRU's signal failure tests ................................ 43
Test no.15 Wind sensor failures ...................................... 44
Test no.16 DP network tests .......................................... 45
Test no.17 DP controller and os’s failures ........................... 46
Test no.18 Independent joystick system ............................... 47
Test no.19 DP consequence analysis ................................... 48
Test no.20 Mathematical model test.................................... 49
Test no.21 Thruster emergency stop ................................... 50
Test no.22 DP UPS 1 .................................................. 51
Test no.23 DP UPS 2 .................................................. 52
Test no.24 Bow thruster T1 (PS) signal failure ....................... 53
Test no.25 Bow thruster T2 (STBD) signal failure ..................... 55
Test no.26 Stern thruster T3 (PS) signal failure ..................... 57
Test no.27 Stern thruster T4 (STBD) signal failure ................... 59
Test no.28 DP cards signal failure ................................... 61
Test no.29 Main 380/220v/110v distributions failure .................. 63
Test no.30 Main switch board black blackout .......................... 64
Test no.31 Diesel generators emergency stop .......................... 65
Test no.32 Thruster engine ECM ....................................... 66
Test no.33 24 VDC distribution ....................................... 67
Test no.34 Thruster hydraulic ........................................ 68
Test no.35 Alarm panels .............................................. 69
Test no.36 Thruster performance test ................................. 70
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