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The Space Elevator from Science Fiction to Engineering - page 37 / 50

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Conclusions from stress analysis

Larger wheel diameters reduce contact stresses for fatigue

Larger wheels increase the climber’s mass

Adding wheel pairs lowers force on each pair, makes wheels smaller

Climber weighs less up to a point

The maximum number of wheel sets is three and minimum wheel diameter is ~8.4 inches to rotate fewer than 150E6 revs

Fatigue allowable must be high to make small wheels

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