共查询到17条相似文献,搜索用时 78 毫秒
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研制了一种简易的课堂使用的演示仪,通过数值模拟研究了复摆的运动特性,理论和演示实验的结果相互吻合.该演示仪可以演示平行轴定理和复摆的运动特性. 相似文献
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从复摆的运动方程入手,利用计算机进行求解,通过选取不同的参数,分析了其运动中的各种典型情况及混沌现象,并用两种方式对其运动进行了图像描绘。 相似文献
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We present the motion equation of the standard-beam balance oscillation system,whose beam and suspensions,compared with the compound pendulum,are connected flexibly and vertically.The nonlinearity and the periodic solution of the equation are discussed by the phase-plane analysis.We find that this kind of oscillation can be equivalent to a standard-beam compound pendulum without suspensions;however,the equivalent mass centre of the standard beam is extended.The derived periodic solution shows that the oscillation period is tightly related to the initial pivot energy and several systemic parameters:beam length,masses of the beam,and suspensions,and the beam mass centre.A numerical example is calculated. 相似文献
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文章对可变摆长的单摆运动进行了详细的理论分析和推导,并根据不同的摆长将运动分成八种情况。 相似文献
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Sumant Sharma Vrishank Raghav Narayanan Komerath Marilyn Smith 《Physics letters. A》2013,377(34-36):2079-2082
Wind tunnel experiments have shown an unexplained amplification of the free motion of a tethered bluff body in a small wind tunnel relative to that in a large wind tunnel. The influence of wall proximity on fluid–structure interaction is explored using a compound pendulum motion in the plane orthogonal to a steady freestream with a doublet model for aerodynamic forces. Wall proximity amplifies a purely symmetric single degree of freedom oscillation with the addition of an out-of-phase force. The success of this simple level of simulation enables progress to develop metrics for unsteady wall interference in dynamic testing of tethered bluff bodies. 相似文献