Asymptotic stability for a laminated beam with structural damping and infinite memory

Asymptotic stability for a laminated beam with structural damping and infinite memory
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具有结构阻尼和无限记忆的叠层梁的渐近稳定性

DOI:
10.1177/1081286520917440
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发表时间:
2020-06
影响因子:
2.6
通讯作者:
Li Gang
Li Gang
中科院分区:
工程技术3区
文献类型:
--
作者:
Liu Wenjun;Kong Xiangyu;Li Gang

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本文考虑有效转角作用下具有结构阻尼和无限记忆的一维层合梁。在适当的松弛函数假设下,我们利用Hille-Yosida定理证明了系统是适定的,并由此建立了一般的衰减结果,其中指数衰减和多项式衰减只是波传播速度相等和不等速度情况下的特例。在波传播速度不同且弛豫函数呈指数衰减的特殊情况下,我们证明了缺乏指数稳定性。
In this paper, we consider a one-dimensional laminated beam with structural damping and an infinite memory acting on the effective rotation angle. Under appropriate assumptions imposed on the relaxation function, we show that the system is well-posed by using the Hille–Yosida theorem, and then we establish general decay results, from which exponential and polynomial decays are only special cases, in the case of equal speeds of wave propagation as well as that of nonequal speeds. In the particular case when the wave propagation speeds are different and the relaxation function decays exponentially, we show the lack of exponential stability.
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影响因子: 1.8
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具有时间延迟和边界反馈的叠层铁莫申科梁的适定性和指数衰减
DOI: 10.1002/mma.4655
发表时间: 2018
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发表时间: 1994
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