Ольга Салтыкова, O. Saltykova, Александр Кречин, A. Krechin
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引用次数: 0
Abstract
The purpose of this work is to study and scientific visualization the effect of additive white noise on the nonlinear dynamics of beam structure contact interaction, where beams obey the kinematic hypotheses of the first and second approximation. When constructing a mathematical model, geometric nonlinearity according to the T. von Karman model and constructive nonlinearity are taken into account. The beam structure is under the influence of an external alternating load, as well as in the field of additive white noise. The chaotic dynamics and synchronization of the contact interaction of two beams is investigated. The resulting system of partial differential equations is reduced to a Cauchy problem by the finite difference method and then solved by the fourth order Runge-Kutta method.
本工作的目的是研究和科学可视化加性白噪声对梁结构接触相互作用非线性动力学的影响,其中梁服从第一和第二近似的运动学假设。在建立数学模型时,考虑了T. von Karman模型的几何非线性和构造非线性。梁结构受到外部交变载荷和加性白噪声的影响。研究了两束接触相互作用的混沌动力学和同步问题。用有限差分法将得到的偏微分方程组简化为柯西问题,然后用四阶龙格-库塔法求解。