Adaptive Tuned Vibration Absorbers: Design Principles, Concepts and Physical Implementation

Bonello, Philip

doi:10.5772/23558

Cited by 13 publications

(15 citation statements)

References 11 publications

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“…For instance, the TVAs are very simple devices, composed by mass, damper and spring, that have been widely used in the field of structural vibration attenuations [14,15]. Depending on the application, the TVAs can be used in two ways, resulting in different optimal criteria and design requirements [13,16]: (1) they can be tuned to suppress the vibration at a specific troublesome excitation frequency and in this case the TVA referred to as a tuned vibration neutralizer (TVN); (2), they can be tuned to dampen the modal contribution from a specific troublesome natural frequency of the controlled vibrating structure, and in this case the TVA referred to as a TMD.…”

Section: Overview Of the Existing Techniques For Internal Noise Controlmentioning

confidence: 99%

“…The TMDs are particularly useful when the excitation has a broad frequency spectrum and they are used to dampen a particular resonance peak of the frequency response function relating the structural response to the excitation [16]. The potential of the TMD devices, in structural vibration mitigation, are recognized and well established since the pioneer work of Den Hartog [18].…”

Section: Overview Of the Existing Techniques For Internal Noise Controlmentioning

confidence: 99%

“…This result is coherent with other results found in the literature [3] where the greatest acoustic pressure reduction occurs when the TMD device acts as a highly reactive device and the effect of the dissipation process [45] is reduced to zero. For these coupled modes dominated by cavity modes, the TMD device acts like as a neutralizer [13,16]. The optimal TMD locations, when the frequency 3  is controlled, are given in Table 6 where it has been observed that for narrowband and broadband control, the optimal locations were in the vicinity of the antinode point of the plate mode (3,1).…”

Section: Tmd Optimal Parametersmentioning

confidence: 99%

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Random vibro-acoustic control of internal noise through optimized Tuned Mass Dampers

Mrabet

Ichchou

Bouhaddi

2019

Mechanical Systems and Signal Processing

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It has not been published elsewhere and that it has not been submitted simultaneously for publication elsewhere. The work deals with the passive control of interior sound pressure induced by randomly vibrating structure coupled to an enclosure filled with air. The control in the low frequency range is achieved using a Tuned Mass Damper (TMD) device. In order to guarantee an optimal performance of the TMD device, a stochastic acoustic optimization strategy is proposed. The effectiveness of the proposed strategy is investigated and compared with others from the open literature. The capability of the proposed optimization strategy to deal with multimodal control of interior sound has also been addressed. To this end, multiple TMDs have been used. The optimal TMD parameters have been obtained using a multi-objective optimization approach and the results that have been gathered show significant attenuations in all target resonant modes.

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Section: Overview Of the Existing Techniques For Internal Noise Controlmentioning

confidence: 99%

Section: Overview Of the Existing Techniques For Internal Noise Controlmentioning

confidence: 99%

Section: Tmd Optimal Parametersmentioning

confidence: 99%

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Random vibro-acoustic control of internal noise through optimized Tuned Mass Dampers

Mrabet

Ichchou

Bouhaddi

2019

Mechanical Systems and Signal Processing

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“…In turn, an adaptive TVA can be designed with a smaller inertial mass [10]. In the last decades, numerous concepts have been investigated [11][12][13][14], but the designs can be traced back to some basic principles of adaptation [15] ( Table 1). [15].…”

Section: Adaptive Tuned Vibration Absorbersmentioning

confidence: 99%

Passive, Adaptive, Active Vibration Control, and Integrated Approaches

Mayer¹,

Herold²

2018

Vibration Analysis and Control in Mechanical Structures and Wind Energy Conversion Systems

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Passive vibration control solutions like tuned vibration absorbers are often limited to tackle a single structural resonance or a specific disturbance frequency. Active vibration control systems can overcome these limitations, yet requiring continuously electrical energy for a sufficient performance. Thus, in some cases, a passive vibration control system is still preferable. Yet, the integration of active elements enables adaptation of the system parameters, for instance, the resonance of a tuned vibration absorber. These adaptive or semi-active systems only require external energy for the adaptation, while the compensating forces are generated by the inertia of the absorber's mass. In this contribution, the fundamentals of active, passive, and adaptive vibration control are briefly summarized and compared regarding their main advantages and design challenges. In the second part, a design of an inertial mass device with integrated piezoelectric actuators is presented. By applying a lever mechanism, the stiffness of the inertial mass device can be tuned even to very low frequencies. The device can be used to implement both adaptive tuned vibration absorbers and active control systems. In the last section of the chapter, the device is used in an experiment for vibration control of a large elastic structure. The setup is used to demonstrate different strategies for the realization of a vibration control system and the integration of different vibration control strategies.

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“…Several basic concepts exist to adjust the resonance by actuation. Overviews can be found in [2][3][4]; also, some concepts will be introduced in the following section.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Piezoelectric Absorber for Active Vibration Control

Herold

Mayer

2016

Actuators

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Passive vibration control solutions are often limited to working reliably at one design point. Especially applied to lightweight structures, which tend to have unwanted vibration, active vibration control approaches can outperform passive solutions. To generate dynamic forces in a narrow frequency band, passive single-degree-of-freedom oscillators are frequently used as vibration absorbers and neutralizers. In order to respond to changes in system properties and/or the frequency of excitation forces, in this work, adaptive vibration compensation by a tunable piezoelectric vibration absorber is investigated. A special design containing piezoelectric stack actuators is used to cover a large tuning range for the natural frequency of the adaptive vibration absorber, while also the utilization as an active dynamic inertial mass actuator for active control concepts is possible, which can help to implement a broadband vibration control system. An analytical model is set up to derive general design rules for the system. An absorber prototype is set up and validated experimentally for both use cases of an adaptive vibration absorber and inertial mass actuator. Finally, the adaptive vibration control system is installed and tested with a basic truss structure in the laboratory, using both the possibility to adjust the properties of the absorber and active control.

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Adaptive Tuned Vibration Absorbers: Design Principles, Concepts and Physical Implementation

Cited by 13 publications

References 11 publications

Random vibro-acoustic control of internal noise through optimized Tuned Mass Dampers

Random vibro-acoustic control of internal noise through optimized Tuned Mass Dampers

Passive, Adaptive, Active Vibration Control, and Integrated Approaches

Adaptive Piezoelectric Absorber for Active Vibration Control

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