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首页> 外文期刊>Journal of Sound and Vibration >Modeling and design of field programmable gate array based real time robust controller for active control of vibrating smart system
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Modeling and design of field programmable gate array based real time robust controller for active control of vibrating smart system

机译：基于现场可编程门阵列的实时鲁棒控制器的振动智能系统建模与设计

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The current paper focuses on accurate mathematical modeling of a vibrating piezoelectric laminate cantilever beam theoretically as well as experimentally so as to obtain the best replication of the system dynamics on the software platform for simulation studies. The developed models were tested for accuracy in time as well as frequency domain by employing the sweep sine test. The focus of the study is on the flexural modes of vibrations of the cantilever beam. Here, modeling is focused on the first vibratory mode as it has been observed that the effects of felt vibrations would be maximum in terms of system stability and its operational efficiency when the excitation frequency matches with the first natural frequency of the system (f(n1)). This was validated by appropriate non parametric modeling of the smart system by subjecting it to the Impact Hammer test. Development of accurate system models play an important role in designing and testing various control algorithms for reliable active vibration control (AVC). In the final stage, a real time active vibration robust controller was designed using a proportional derivative sliding mode control (PDSMC) technique and deployed on a Field Programmable Gate Array (FPGA) platform. The efficiency of the developed real time controller was proved in time as well as frequency domains by subjecting the closed loop system to harmonic excitations at first natural frequency as well as sweep sine Lest focussing on the first vibratory mode with the conclusion that the developed controller will function satisfactorily at higher modes of vibrations. (C) 2015 Elsevier Ltd. All rights reserved.
机译：目前的论文集中在理论和实验上对振动压电层压板悬臂梁进行精确的数学建模，以便在用于仿真研究的软件平台上获得最佳的系统动力学复制。通过使用扫描正弦测试，测试了开发模型的时间和频域准确性。研究的重点是悬臂梁振动的弯曲模式。在这里，建模着重于第一振动模式，因为已经观察到，当励磁频率与系统的第一固有频率相匹配时，毛毡振动的影响在系统稳定性及其运行效率方面最大（f（n1 ））。通过对智能系统进行适当的非参数建模，使其经过“冲击锤”测试，从而验证了这一点。准确系统模型的开发在设计和测试各种控制算法以实现可靠的主动振动控制（AVC）中起着重要作用。在最后阶段，使用比例微分滑模控制（PDSMC）技术设计了实时主动振动鲁棒控制器，并将其部署在现场可编程门阵列（FPGA）平台上。通过使闭环系统经受第一自然频率的谐波激励以及正弦扫频，在时间和频域上都证明了开发的实时控制器的效率。在较高的振动模式下可令人满意地发挥作用。 （C）2015 Elsevier Ltd.保留所有权利。

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