EAWS in Practice

Exercise: question and solution

Section 4

Solution 

Number of dynamic actions = 3 + 4 + 2 + 3 = 12 RA


Duration of static actions = 5 + 15 =20 s


Cycle time ≠ 60 s --> conversion necessary


  •   %SA per minute = 20 s/70 s × 100 % = 28.57 % 28.6 % 
  • 20 seconds of static action DSA = 20/70 × 60 = 17.1 s/min 


  •  %DA per minute =100 - 28.6 = 71.4% 
  • 12 dynamics actions FDA = 12/(70-20) × 60 = 14.4 actions/min   


Dynamic actions:


Force level 1 

  • Scoring at level 1 from table at 14.4 actions = 0 Points 
  • Grip scoring c at level 1 GD1 = 0 Points
  • Level 1 percentage FLD1 = 3/12 × 50/70 = 17.9 % 


Force level 2

  • Scoring at level 2 from table at 14.4 actions = 0.9 Points 
  • Grip scoring b at level 2 GD2 = 1 Point 
  • Level 2 percentage FLD2 = 4/12 × 50/70 = 23.8%


Force level 3 

  • Scoring at level 3 from table at 14,4 actions = 1.9 Points 
  • Grip scoring at level 3 - GD3: (2×4+3×0)/5 = 1.6 Points 
  • Level 3 percentage FLD3 = 5/12 × 50/70 = 29.8 % 


Static actions: 

20 s = 17.1 s/min; %SA = 20 s/70 s × 100% = 28.6 % 


Force level 2: 

  • FDS2: 1 point 
  • grip point b GS2 = 1 GS’2= 1 × 28.6 % = 0.3 Points 
  • %FLS2 : 15/20 = 75% 


Force level 3: 

  • FDS3: 2.7 points 
  • grip points a GS3 = 0 GS’3 = 0 × 28,6% = 0 Points 
  • %FLS3 : 5/20 = 25% 

SC2 = 75% × (1 + 0.286) = 1.0 Point 

SC3 = 25% × (2.7 + 0)= 0.7 Points 

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