Vibration isolation with smart fluid dampers: a benchmarking study
Vibration isolation with smart fluid dampers: a benchmarking study
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使用智能流体阻尼器进行隔振：基准研究
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
N. Sims
中科院分区：
文献类型：
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作者：
D. Batterbee;N. Sims
电流变（ER）和磁流变（MR）阻尼器的非线性行为使得难以设计有效的控制策略，因此在文献中已经提出了各种控制系统。这些以前的研究并不总是比较的性能，等效的被动系统，替代控制设计，或理想化的主动系统。因此，通常不可能比较不同智能阻尼器控制策略的性能。这篇文章提供了一些见解的两个MR阻尼器控制策略的相对性能：开/关控制和反馈线性化。这两种策略的性能基准对理想的被动，半主动和全主动阻尼。这项研究依赖于以前开发的模型的MR阻尼器，在这项工作中，实验验证闭环条件下的宽带机械激励。两个隔振案例研究：一个单自由度的质量隔离器，和一个两个自由度的系统，代表车辆悬架系统。在这两种情况下，使用各种宽带机械激励，并在频域中分析结果。它示出，虽然开/关控制是更简单的实施，其性能比反馈线性化策略差，并且可以是非常敏感的激励条件。
The non-linear behaviour of electrorheological (ER) and magnetorheological (MR) dampers makes it difficult to design effective control strategies, and as a consequence a wide range of control systems have been proposed in the literature. These previous studies have not always compared the performance to equivalent passive systems, alternative control designs, or idealised active systems. As a result it is often impossible to compare the performance of different smart damper control strategies. This article provides some insight into the relative performance of two MR damper control strategies: on/off control and feedback linearisation. The performance of both strategies is benchmarked against ideal passive, semi-active and fully active damping. The study relies upon a previously developed model of an MR damper, which in this work is validated experimentally under closed-loop conditions with a broadband mechanical excitation. Two vibration isolation case studies are investigated: a single-degree-of-freedom mass-isolator, and a two-degree-of-freedom system that represents a vehicle suspension system. In both cases, a variety of broadband mechanical excitations are used and the results analysed in the frequency domain. It is shown that although on/off control is more straightforward to implement, its performance is worse than the feedback linearisation strategy, and can be extremely sensitive to the excitation conditions.