为建立菱形翼布局无人机的动力学模型,提出一种基于拉格朗日方程的动力学建模方法,首先选取四元数用于参数化该无人机的姿态,建立......

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Recently many research works have been conducted and published regarding fractional order differential equations. There ......

Due to the ability to model various complex phenomena where classical calculus failed, fractional calculus is getting en......

This paper outlines the vibrational motion of a nonlinear system with a spring of linear stiffness. Homotopy perturbatio......

Olkin [1] proposed a ratio estimator considering p auxiliary variables under simple random sampling. As is expected, Sim......