Ski jumpers’ goal is to jump as far as possible which is directly affected by the speed they reach at the take-off. This diploma thesis determines the optimised curve of the in-run slope to obtain the highest final speed at the end of the ramp. The curve described as the practical example in the FIS Standard for the Construction of the Jumping Hills was selected as the basis. The key factors affecting the ski jumper during take-off are the force of gravity, friction force, and air resistance force. Due to the complexity of the influence of friction and air resistance, the problem of the optimisation could not have been solved analytically. Software tool Mathematica was used for the numerical optimisation. The calculated curve takes the form of a step. The results of the optimised curve were compared with the results of the default FIS curve, trochoid, cycloid, and the constructed step curve.
|