技術者教育のための工学数理の力学教材の改定(26):外部励振による半円柱の非線形振動の数値解析

概要

論文の詳細を見る
In view of various types of pendulums provided at foreign universities and colleges, some representative educationmaterials are reexamined to show fundamental mechanical phenomena and to step up to higher level of PBL (ProblemBased Learning) resources. As one of such typical pendulums, considered is a physical pendulum in which a semi-circularcylinder rocks on a horizontal plane and a plate is attached to change mechanical effects. Given the mass density of physicalpendulum, its mass, the center of gravity and the moment of inertia are modeled to make Lagrange function to describethe pendulum motion. Comparing with the results in experiments and simulation, we find that the theoretical results by themethod of multiple scales may express reasonably the nonlinear motion of the physical pendulums tested experimentally.
2012-01-31