@article{ZHU2025, 
author = {Yihui ZHU and Jixuan HOU and Qian CHEN and Qiuhang LI},
title = {SIMPLE PHYSICAL IMAGE OF AZIMUTH RADIAL PENDULUM},
year = {2025},
journal = {Physics and Engineering},
volume = {35},
number = {3},
pages = {214-217},
keywords = {azimuthal-radial pendulum, bifilar pendulum, Lissajous figure},
url = {https://www.sciopen.com/article/10.26599/PHYS.2025.9320336},
doi = {10.26599/PHYS.2025.9320336},
abstract = {This paper provides a simple physical picture for the azimuthal-radial pendulum which was presented by the 31st International Young Physicists' Tournament (IYPT2018). Through equivalent analysis, the azimuthal radial pendulum can be regarded as a double-filament pendulum with different lengths in two mutually perpendicular directions. Due to the different vibration frequencies in the two perpendicular directions, the trajectory of the pendulum bob exhibits a Lissajous figure. This paper also demonstrates through experiments the consistency of the trajectories between the azimuthal radial pendulum and the double-filament pendulum.}
}