Optimization of Damping for Squeal Avoidance in Disc Brakes

Optimization of Damping for Squeal Avoidance in Disc Brakes
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优化阻尼以避免盘式制动器中的尖叫声

DOI:
10.1002/pamm.201710156
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发表时间:
2017
期刊:
PAMM
影响因子:
--
通讯作者:
Hagedorn
Hagedorn
中科院分区:
--
文献类型:
--
作者:
Hagedorn

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本文讨论了循环系统线性稳定性的优化问题,特别是在阻尼特性方面。该技术被证明是通过将其应用到工业有限元模型的盘式制动器,以减少尖叫噪声的倾向。在将阻尼矩阵分解成几个可能具有某种特殊结构或物理相关性的分量矩阵之后,改变这些分量矩阵的比率以稳定或使平衡状态更稳定地受到合理的约束。为了研究的目的,一个系统被定义为更稳定,如果它的最大的真实的部分的特征值是尽可能负的。对于一定的速度范围,它被证明是有益的,以减少材料阻尼垫和卡钳,这可能是违反直觉的工程师的角度来看。(© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA,魏因海姆)
This paper deals with the optimization of the linear stability behavior of circulatory systems with respect to particularly advantageous damping properties. The technique is demonstrated by applying it to an industrial finite element model of a disc brake in order to reduce the propensity of squeal noise. After decomposing the damping matrix into several component matrices, which may have some special structure or physical relevance, 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, a system is defined to be more stable if its eigenvalue with largest real part is as negative as possible. For a certain velocity range, it is shown to be beneficial to reduce the material damping in the pads and in the caliper, which might be counterintuitive from an engineer's perspective. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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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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