Development and performance evaluation of a robust suboptimal
            <i>H</i>
            <sub>∞</sub>
            ‐based proportional–integral controller–observer system with target tracking for better control of seismic responses

Panda, Jagajyoti; Chakraborty, Sanjukta; Chaudhuri, Shaon Ray

doi:10.1002/stc.3084

Cited by 7 publications

(3 citation statements)

References 34 publications

(60 reference statements)

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“…The efficacy of the proposed strategy was numerically validated for a TMD that is installed in Taipei 101 tower to alleviate the wind induced vibrations. Recently, Panda et al [4]; Zand et al [5] has demonstrated the application of integrated base-isolation and active control system (hybrid adaptive system) for both near and far-fault earthquakes, wherein a new full and reduced order proportional-integral 𝐻 ∞ controller is used to acuate the control device. Furthermore, the problem of designing a multi-sensor acceleration -strainbased output controller for hybrid adaptive systems has been discussed in Adarsh et al [6].…”

Section: Introductionmentioning

confidence: 99%

Decentralized H2-Based Semi-Active Control To Suppress Transient Vibration Of Structures

Panda,

Adarsh,

Chakraborty

2024

J. Phys.: Conf. Ser.

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This study presents a novel decentralized active control algorithm for vibration mitigation of structures subjected to random seismic excitations. In recent years, the applicability of decentralization technique has gained momentum in the field of control theory to overcome the complexity and computational burden of centralized system. Advancement in instrumentation scheme, i.e., sensors, actuators and computing units in the feedback loop is the reason behind the growing interest of decentralized control concept. In this case, the controller framework is designed through suboptimal H2-based proportional control algorithm. The objective of this optimal strategy is to reduce structural energy and control force simultaneously. Further, the concept of decentralized switched state-feedback control law is incorporated, and the detailed formulations are presented in digital domain for easy implementation. A set of communication channels are considered to exchange the state information between the neighbouring subcontrollers. The performance of the designed control strategy is numerically illustrated for an 8-storey building model with multiple magneto-rheological dampers. Comparative assessment with passive case and standard centralized scheme confirms better adaptiveness of the proposed control scheme.

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Section: Introductionmentioning

confidence: 99%

Decentralized H2-Based Semi-Active Control To Suppress Transient Vibration Of Structures

Panda,

Adarsh,

Chakraborty

2024

J. Phys.: Conf. Ser.

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“…Therefore, it is of utmost importance to restrict excessively large bearing displacements in the baseisolated structures. In that context, various researchers have suggested multiple passive and semi-active control strategies to reduce the large bearing displacements of base-isolated structures with the help of supplemental dampers [26][27][28]30,31].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Vibration Control of Hospital Buildings against Earthquake Excitations Using Unbonded Fiber-Reinforced Elastomeric Isolator and Tuned Mass Damper

Banerjee

Matsagar

2023

Buildings

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Lifeline structures such as hospital buildings need to be specifically designed such that they experience reduced vibrations when subjected to earthquake excitations because it will be difficult to vacate hospital buildings under the event of any earthquake. Therefore, to ensure operational condition under earthquake excitations in an existing hospital building, the present study utilizes flexible unbonded fiber-reinforced elastomeric isolators (UFREIs) for its seismic isolation. The UFREI-based isolation system is designed to restrict the structural acceleration within the tolerable limits for the building inhabitants even during earthquake hazards. However, the use of such flexible isolators results in excessively large bearing displacements, which either may not be practical and/or pose several serviceability issues. Therefore, tuned mass damper (TMD) is attached to the base floor of the UFREI-isolated hospital building to reduce the large isolator displacements. Properties of the hybrid vibration control system are designed according to the site-specific scenario in New Delhi, India. Further, nonlinear time-history analyses of the UFREI-isolated hospital building with the TMD are carried out, and responses are compared with its uncontrolled response. Results show that the peak bearing displacement response of the UFREI-isolated hospital building is reduced by 9% to 27%, due to the addition of the TMD. Importantly, the required design displacement of the UFREI-based isolation system is decreased by 27%, without compromising the effectiveness of base isolation. In fact, the performance of the hybrid vibration control system is superior to the base isolation system alone.

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“…Recent literature findings reveal increasing interest in the application of adaptive intelligent controllers in civil structures and smart control systems designed to cope with natural hazards. Panda et al [31] developed a robust H 1 -based servo-mechanism controller for better control of seismic responses by taking target tracking problems into account. Their findings show that the developed adaptive controller has a significant potential for reducing interstory drift in both SDOF and MDOF systems.…”

Section: Introductionmentioning

confidence: 99%

Microvibration Control of Hybrid Platform for High-Tech Equipment in Buildings Using Brain Emotional Learning-Based Intelligent Controller

Tappiti,

Lin

2023

Advances in Civil Engineering

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In the semiconductor industry, the vulnerability of high-tech facilities installed on platforms to ground excitations induced by nearby traffic is significantly pronounced, primarily due to their small-scale dimensions. Consequently, it is imperative to design a smart control technique by effectively utilizing model-free controllers. Recently, adaptive intelligent control algorithms have emerged as a viable alternative to conventional model-based control algorithms. To address this issue, this study meticulously designed a hybrid platform using the adaptive intelligent controller known as the brain emotional learning-based intelligent controller, along with a Sugano fuzzy inference system to effectively optimize the controller’s learning parameters. These learning and intelligent-based algorithms offer notable advantages, including the ability to handle nonlinearity, uncertainty, and training capabilities within the control systems. To assess the effectiveness of the proposed controller in mitigating vibrations induced by traffic on high-tech facilities, a three degree-of-freedom structure is employed along with the hybrid platform. Finally, the performance of the hybrid platform in terms of microvibration control levels is meticulously validated using the Bolt Beranek Newman vibration criteria. Simulation results unequivocally demonstrate that the proposed controller outperforms both an uncontrolled system and a traditional linear quadratic regulator controller in terms of reducing the traffic-induced response of the hybrid platform and second floor, respectively. Through the integration of learning and intelligent-based controllers, the velocity levels of both the hybrid platform and the second floor are reduced to approximately 49.02% and remain well within the acceptable standard criteria curves.

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Development and performance evaluation of a robust suboptimal H _∞ ‐based proportional–integral controller–observer system with target tracking for better control of seismic responses

Abstract: In this article, a new full-and reduced-order proportional-integral (PI) controller is developed such that the target-tracking or commandfollowing problems become generic for a wide range of frequency inputs. The

Cited by 7 publications

References 34 publications

Decentralized H2-Based Semi-Active Control To Suppress Transient Vibration Of Structures

Decentralized H2-Based Semi-Active Control To Suppress Transient Vibration Of Structures

Hybrid Vibration Control of Hospital Buildings against Earthquake Excitations Using Unbonded Fiber-Reinforced Elastomeric Isolator and Tuned Mass Damper

Microvibration Control of Hybrid Platform for High-Tech Equipment in Buildings Using Brain Emotional Learning-Based Intelligent Controller

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Development and performance evaluation of a robust suboptimal H ∞ ‐based proportional–integral controller–observer system with target tracking for better control of seismic responses

Abstract: In this article, a new full-and reduced-order proportional-integral (PI) controller is developed such that the target-tracking or commandfollowing problems become generic for a wide range of frequency inputs. The

Cited by 7 publications

References 34 publications

Decentralized H2-Based Semi-Active Control To Suppress Transient Vibration Of Structures

Decentralized H2-Based Semi-Active Control To Suppress Transient Vibration Of Structures

Hybrid Vibration Control of Hospital Buildings against Earthquake Excitations Using Unbonded Fiber-Reinforced Elastomeric Isolator and Tuned Mass Damper

Microvibration Control of Hybrid Platform for High-Tech Equipment in Buildings Using Brain Emotional Learning-Based Intelligent Controller

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Development and performance evaluation of a robust suboptimal H _∞ ‐based proportional–integral controller–observer system with target tracking for better control of seismic responses