Optimal auxiliary functions method for a pendulum wrapping on two cylinders

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Abstract

In the present work, the nonlinear oscillations of a pendulum wrapping on two cylinders is studied by means of a new analytical technique, namely the Optimal Auxiliary Functions Method (OAFM). The equation of motion is derived from the Lagrange's equation. Analytical solutions and natural frequency of the system are calculated. Our results obtained through this new procedure are compared with numerical ones and a very good agreement was found, which proves the accuracy of the method. The presented numerical examples show that the proposed approach is simple, easy to implement and very accurate.

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Marinca, V., & Herisanu, N. (2020). Optimal auxiliary functions method for a pendulum wrapping on two cylinders. Mathematics, 8(8). https://doi.org/10.3390/MATH8081364

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