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Matsangas et al (2009) - Human Performance Standards for Ship Motion : A review and a preliminary gap analysis

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  1. 1. Human Performance Standards for Ship MotionA review and a preliminary gap analysis<br />P. Matsangas<br />M.E. McCauley<br />F. Papoulias<br />
  2. 2. Acknowledgments<br />The presented work is part of the<br />Ship – Human Integration <br />Performance System (SHIPS) Project<br />supported by the<br />Office of Naval Research<br />
  3. 3. The question<br />How well do existing standards used in ship design, address human performance issues?<br />
  4. 4. The scope<br />Assessment of current state on<br />Motion Sickness<br />Sopite Syndrome<br />Sleep disturbances because of motion <br />Motion induced fatigue<br />Effects of human activity<br />Comfort<br />Health<br />
  5. 5. The approach<br />
  6. 6. Taxonomy<br />
  7. 7. Human response to vibration<br />Major motion attributes<br /><ul><li>Duration
  8. 8. Short duration accelerations: impact or shocks (acting 1secor less)
  9. 9. Sustained or continuous accelerations (acting 1 secor more)
  10. 10. Frequency envelope
  11. 11. Low-frequency motion < 1 Hz (conventional criterion)
  12. 12. Vibration: 1 Hz <frequencies < 80 Hz (ISO, 1996).
  13. 13. Time dependency
  14. 14. transient or stationary, harmonic, periodic or stochastic</li></ul>According to DEF STAN 00-250, and BS 6841:1987<br />
  15. 15. WBV effects<br />According to BS 6841:1987<br />
  16. 16. Frequency range<br />Motion sickness: 0.1 - 0.5 Hz<br />Health effects: 0.5 - 80 Hz<br />Vibration perception: 0.5 - 80 Hz<br />Comfort: 0.5 - 80 Hz<br />Effects on human activity: 1.0 - 80 Hz<br />Vision: 20 – 70 Hz or more.<br />
  17. 17. Assessment methods<br /><ul><li> ISO 2631-1:1997
  18. 18. “A”
  19. 19. Frequency-weighted RMS acceleration
  20. 20. “B”
  21. 21. Vibration dose value method (VDV)
  22. 22. Running RMS method</li></ul>Maximum transient vibration <br />value (MTVV)<br />ISO 2631-1:1997<br /><ul><li> VDI 2057 Part 1: 2002
  23. 23. Running RMS method</li></ul>BS 6841:1987<br />
  24. 24. Motion Sickness I<br />HFR model<br />
  25. 25. Motion Sickness II<br />Assessment Methods<br />Criteria<br />Measure acceleration at Z-axis<br /><ul><li>10%
  26. 26. ABS 103 (passengers)
  27. 27. ASTM F1166-07 (personnel)
  28. 28. ISO 2631-3:1985 (cancelled)
  29. 29. 20% @ 4 hrs
  30. 30. STANAG 4154:ed.3
  31. 31. “Minimize motion sickness”
  32. 32. MIL-STD-1472F</li></ul>(1)<br />(2)<br />MSI<br />Ref: ISO 2631-1:1997, BS 6841:1987<br />
  33. 33. What MSI?<br />
  34. 34. Comfort<br />Criteria<br />Table 1: Indicative comfort reaction according to ISO 2631-1:1997 and BS 6841:1987 (RMS acceleration in m/s^2)<br />VDV ~ 15 m/s1.75 will usually cause severe discomfort.<br />Crew<br />≤ 0.4 m/s2 RMS acceleration,<br /> preventing crew severe discomfort <br />≤ 0.315 m/s2 RMS acceleration<br />improving crew comfort<br />Passengers<br />≤ 0.315 m/s2 RMS acceleration,<br />For passengers comfort <br />≤ 0.20 m/s2 RMS acceleration<br />Optimal passenger comfort<br />Table 2: Criteria proposed by ISO 6954:2000 (RMS accelerations in m/s^2)<br />
  35. 35. Health<br /><ul><li>Type 1 (ASTM F1166-07)
  36. 36. < 4G
  37. 37. 0.5 MPa (low pr)
  38. 38. 0.8 Mpa (high pr)
  39. 39. > 4G
  40. 40. 3.9 MPa (low pr)
  41. 41. 4.7 Mpa (high pr)</li></ul>Figure 1: Health guidance caution zone according to ISO 2631-1:1997<br />Figure 2: Health guidance zones for limited exposures according to ASTM F1166-07<br />
  42. 42. Effects of human activity I<br />Table 1: Human performance criteria according to NATO STANAG 4154:Ed.3<br />Table 2: Preliminary values for MIIs risk levels in ship deck operations<br />
  43. 43. Effects of human activity IIManual Material Handling (MMH)<br />Table 3: Maximum weight limits derived from ASTM F1166-07 and MIL-STD1472F<br />Table 4: Maximum weight limits derived from ASTM F1166-07 and MIL-STD1472F<br />
  44. 44. Effects of human activity IIManual Material Handling (MMH)<br />MMH related criteria according to STANAG 4154:ed 3 (RMS amplitude values)<br />
  45. 45. Sopite Syndrome<br />
  46. 46. Sleep Disturbances<br />X<br />
  47. 47. Motion Induced Fatigue (MIF)<br />
  48. 48. Overview<br />[1]Crew task interference in general<br />[2]Lifting, carrying, pushing<br />[3]Hand (or finger) manipulation and control, and vision<br />[4]Cumulative lumbar spine response<br />[5]Habitability related to vibration<br />[6]Visual tasks and major body resonances<br />[7]Related to naval tasks, and missions<br />[8]Related to naval tasks, and missions<br />
  49. 49. Response criteria<br />
  50. 50. Conclusions<br />No standards or guidance on<br />Sleep<br />Sopite syndrome<br />Motion induced fatigue<br />No standards for military passengers<br />“Motion sickness”  not just vomiting<br />MMH standards do not include motion <br />Limiting criteria<br />Motion response (1st order): Many<br />Derived response (human performance): Some<br />Derived response (task related): A few<br />Significant gap in task specific limiting criteria<br />ISO 2631-1:1997 vs BS 6841:1987. Differences in<br />Methods<br />Distinguishing between methods<br />Weighting coefficients<br />

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