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of another system, especially a computer program designed for that purpose
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Jumping Shoe
Strength Analysis
Modeling and analysis
A 3D modeling of the jump shoe was created using the efficient modeling tool and care was taken to mesh the model as the capturing of stresses in the sole of the shoe and the deflection in the shoe was very important .Second order tetrahedral meshing scheme was used with an element length of 3 and a total mesh element of 75590. A distributed load of 1750N over the sole of the shoe was taken as the initial boundary condition and rigid body (having spring element) has been kept free in the direction of force applied.
Figure showing the stress contour in the jump shoe
Figure showing the deflection in the jump shoe
Conclusion
Analysis was done for both the parts of the shoe. The two parts are joined together using tie constraint. An iterative method was used to determine the stress applied on the shoe and the maximum deflection in the shoe. After several calculations and analysis using the coarse mesh and the fine mesh, it was found that the maximum stress on the sole of shoe is 108.3MPa and the maximum deflection in the shoe is 0.078m which is less.
Objective
Jumping shoes were originally developed for joggers to reduce the impact stress on joints. The disadvantage of the jumping shoes is that it is rather massive and has a limited force rebound due to material usage. This shortcoming was the main reason to start a development project for an improved spring shoe. The main objective of this project was to find the force acting on the shoe when it is used and to develop a new type of running shoe based on force rebound principle.
Figure showing the meshing on the shoe
Figure showing the mesh on the
shoe with stress plot