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Prestress Accumulation-Release Technique for Damping of Impact-Born Vibrations: Application to Self-Deployable Structures

机译:冲击产生的振动阻尼的预应力累积-释放技术:在自展开结构中的应用

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摘要

A numerical study is presented, which tailors so-called prestress accumulation-release (PAR) strategy to mitigate free vibrations of frame structures. First, the concept of proposed semiactive technique is outlined and possible applications are specified. In the second part of the work a parametric study is discussed, which illustrates the potential of the method for mitigation of free vibrations induced by impact or other initial load scenarios. Special attention is given to the energy balance including all relevant contributions to the total energy of the considered dissipative system. The proposed technique shows a very high potential in mitigation of free vibrations, exceeding 99% of the reference amplitude after 5 cycles of vibration.
机译:提出了一个数值研究,该研究量身定制了所谓的预应力累积释放(PAR)策略,以减轻框架结构的自由振动。首先,概述了提出的半主动技术的概念,并指出了可能的应用。在工作的第二部分中,对参数研究进行了讨论,该研究说明了减轻冲击或其他初始载荷情况引起的自由振动的方法的潜力。特别注意能量平衡,包括对考虑的耗散系统总能量的所有相关贡献​​。所提出的技术在缓解自由振动方面显示出非常高的潜力,经过5次振动周期后,超过了参考幅度的99%。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第19期|720236.1-720236.9|共9页
  • 作者单位

    Polish Acad Sci, Intelligent Technol Dept, Inst Fundamental Technol Res, PL-02106 Warsaw, Poland;

    Polish Acad Sci, Intelligent Technol Dept, Inst Fundamental Technol Res, PL-02106 Warsaw, Poland;

    Adaptron Sp Zoo, PL-05092 Lomianki, Poland;

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