Abstract
This newly developed program gives predictions of a climber's fall in two dimensional space. It numerically calculates all forces acting on the climber, the belayer, the rope and various fix points. Also it shows the movement of both the climber and the belayer, taking air drag, friction, deformation of the climber, real rope and belay device characteristics into account. By using a 3-parameter viscoelastic rope model the different behaviour of the rope for dynamic and static loading is correctly simulated. The rope parameters are calibrated using actual rope values which are commonly available from product data sheets of rope manufacturers. A new concept is introduced to describe the rope forces due to the friction at the 1st protection. The climber is modelled with 2-masses to describe the body deformation. An energy analysis shows in detail the significance of all present mechanisms to absorb the fall energy compared to all others.
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