The Tallest Column -- A Dynamical System Approach using a Similarity Solution

Details The Tallest Column -- A Dynamical System Approach using a Similarity Solution The Tallest Column -- A Dynamical System Approach using a Similarity Solution

2007-11-05

arxiv.org/abs/0711.0730v2

Studies in Applied Math (115) 319--337, 2005

Physics

Mathematical Physics

18 pages, 5 figures; typo in title fixed

Scientific paper

A classic problem, the design of the tallest column, is solved again using a different method. By the use of a similarity solution the equations are transformed and the difficult singularity at the endpoint is peeled away. The resulting autonomous system has a critical point and the solution must be on its stable manifold. The solution is found by starting near the critical point in the direction of the stable manifold, and solving backwards numerically. This removes the need for an iterative integration method that was previously used. The method is shown to work for clamped or hinged boundary condition and can also be used for other problems involving singularities at the endpoints.

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