Robust Damping in Self‐Excited Mechanical Systems

Robust Damping in Self‐Excited Mechanical Systems
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自激机械系统中的稳健阻尼

DOI:
10.1002/pamm.201610336
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发表时间:
2016
期刊:
PAMM
影响因子:
--
通讯作者:
Hagedorn
Hagedorn
中科院分区:
--
文献类型:
--
作者:
Clerkin;Hagedorn

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一种技术,以优化一般的机械系统的稳定性概述。该方法依赖于将阻尼矩阵分解为几个分量矩阵,这些分量矩阵可能具有某种特殊的结构或物理相关性。然后可以用公式表示优化问题,其中这些的比率变化以稳定或使平衡状态更稳定,该平衡状态受到合理的约束。为了研究的目的,我们定义一个系统是更稳定的,如果它的最大真实的部分的特征值是尽可能负的。该技术通过将其应用于已知的最小摆动盘式制动器模型的无量纲化变体来证明。在这种情况下,它被证明是有益的,以转移一些阻尼从光盘到销的系统优化的稳定性。(© 2016 Wiley‐VCH Verlag GmbH & Co. KGaA,魏因海姆)
A technique to optimize the stability of a general mechanical system is outlined. The method relies on decomposing the damping matrix into several component matrices, which may have some special structure or physical relevance. An optimization problem can then be formulated where the ratio of these are varied to either stabilize or make more stable the equilibrium state subject to sensible constraints. For the purpose of this study, we define a system to be more stable if its eigenvalue with largest real part is as negative as possible. The technique is demonstrated by applying it to an introduced non‐dimensionalized variant of a known minimal wobbling disc brake model. In this case, it is shown to be beneficial to shift some damping from the disc to the pins for a system optimized for stability. (© 2016 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)
MDGKN 系统的一些最新结果
DOI: 10.1002/zamm.201300270
发表时间: 2015
期刊: ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik
影响因子: --
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