Active control of shock
Active control of shock
复制标题
主动控制冲击
DOI：
10.1115/detc2005-85623
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
T. Shimogo
中科院分区：
文献类型：
--
作者：
H. Nishimura;Dezhang Wang;Yoichi Amano;T. Shimogo
在本文中，我们处理两个物体之间的碰撞问题中的主动冲击控制。为了明确如何使受震物体的变形最大化，同时使受震物体的变形最小化以及能量如何单向传递，讨论了接触刚度、变形时间、变形率和能量平衡之间的关系。应用最终状态控制以获得前馈输入，以使受冲击物体在预定时间内变形所需的量。从而验证了能量平衡和能量效率。此外，我们还研究了实现“动态二极管”所需的条件，该二极管可以将能量从给予冲击的物体单方面传输到接受冲击的物体。实验证明，在指定的接触刚度和变形时间条件下，通过终态控制可以获得适当的前馈输入。版权所有 © 2005 by ASME
In this paper we deal with active control of shock in a collision problem between two objects. In order to make it clear how the deformation of the shock-receiving object can be maximized while minimizing the deformation of the shock-giving object and how energy can be transmitted unilaterally, the relationships among contact stiffness, deformation time, deformation ratio and energy balance are discussed. The final-state control is applied to obtain a feedforward input to deform the shock-receiving object by a desired amount in a predetermined time. Thus, the energy balance and the energy efficiency are verified. Furthermore we examine the conditions necessary to realize a ‘dynamical diode’ that can transmit energy unilaterally from the shock-giving object to the shock-receiving object. It is demonstrated experimentally that the appropriate feedforward input can be obtained by final-state control under specified conditions of contact stiffness and deformation time.Copyright © 2005 by ASME