2026-10-13T22:11:28Z https://www.scidb.cn/oai

10.57760/sciencedb.42915 2026-07-21T16:12:39Z

2026-07-21 A Comprehensive Parameter Scan Dataset of Stable Islands in a Double Pendulum System doi:10.57760/sciencedb.42915 en This dataset systematically investigates the phase-space structure of a classical double pendulum system through large-scale numerical simulations across three rounds of scanning. Round 1 fixes the initial angle at 90° with 100 mass ratios (G1-G100) on a 32×32 grid. Round 2 covers 18 initial angles from 0° to 180°, each with 100 mass ratios on a 32×32 grid. Round 3 performs high-resolution 128×128 scanning (G86.5-G87.5) targeting the stability island region near 60°. Each simulation records pendulum angle trajectories and statistical summaries at 20 temporal sampling points (10s-1800s), totaling approximately 1900 complete simulations. Data is provided in JSON format with an accompanying CSV summary table. This dataset supports theoretical and numerical research on stability islands in chaotic nonlinear dynamical systems. double pendulum; stable islands; parameter scan; nonlinear dynamics; numerical simulation; chaos hong zhen PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank