Tuned Mass Damper Design for Optimally Minimizing Fatigue Damage

Tuned Mass Damper Design for Optimally Minimizing Fatigue Damage
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调谐质量阻尼器设计可最大限度地减少疲劳损坏

DOI:
10.1061/(asce)0733-9399(2002)128:6(703
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发表时间:
2002-06
影响因子:
3.3
通讯作者:
李华军
李华军
中科院分区:
工程技术3区
文献类型:
--
作者:
李华军

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相似文献

传统上,调谐质量阻尼器(TMD)的用途是提高主结构在特殊荷载环境下的生存能力,而设计荷载条件通常用谐波函数来描述,有时也用平稳随机过程来描述,而平稳随机过程可以用功率谱密度(PSD)函数来完全表征。相反,本文认为环境荷载是一个具有概率PSD函数特征的长期非平稳随机过程。设计长期随机载荷条件下的TMD的一个工程动机是延长主结构的疲劳寿命。本研究的主要贡献是为设计能最大限度地减少结构疲劳损伤的TMD提供理论框架。
Traditionally the usage of a tuned mass damper (TMD) is to improve the survivability of the primary structure under an extraordinary loading environment while the design loading condition is often described by a harmonic function, or sometimes by a stationary random process that can be fully characterized by a power spectral density (PSD) function. In contrast, this paper considers the environmental loading to be a long-term nonstationary stochastic process characterized by a probabilistic PSD function. One engineering motivation to design a TMD under a long-term random loading condition is for prolonging the fatigue life of the primary structure. The primary contribution of this study is to provide the theoretical framework for designing a TMD that can optimally minimize structural fatigue damage.
DOI: 10.1016/s0141-1187(05)80066-5
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影响因子: 4.3
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