Design of Tuneable Vibration Absorber by Using Inertial Actuator with Proof-Mass Acceleration Feedback

Mao, Qibo; Huang, Shizuo

doi:10.1142/s0219455419500871

Cited by 16 publications

(7 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first natural frequency of the beam (100Hz) was arranged to be closed to the natural frequency of the passive IA (99.5Hz, without virtual mass). Notice that the passive IA acted as a tuned vibration absorber at this situation, 23,24 the mode splitting phenomenon can be found in Fig. 10.…”

Section: Stability and Control Performancementioning

confidence: 83%

“…9, it can be found that the term M v influences the IA proof mass, thus M v was denoted as the virtual mass. 23 According to Refs., 23,24 the term jL e in M v can be neglected because the coil inductance L e (0.34mH in this study) in IA was normally sufficiently small, 24 therefore the value of L e (about 0.21 at 100Hz) at low frequency was much smaller than R e (4.4 in this study). Clearly, the IA's natural frequency could be shifted down by adding positive M v when the negative acceleration feedback was used.…”

Section: The Ia With Virtual Mass By Using Proof-mass Acceleration Fementioning

confidence: 99%

“…Recently, an IA, with a proof-mass acceleration feedback used as the tuneable vibration absorber, has been proposed and experimentally verified. 23 The IA's natural frequency can be moved to high or low frequency under positive or negative proof-mass acceleration gains, which can produce virtual mass effect. In this study, the IA with virtual mass is extended for active control application.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Inertial Actuator with Virtual Mass for Active Vibration Control

Mao¹,

Li²,

Huang³

2020

The International Journal of Acoustics and Vibration

Self Cite

View full text Add to dashboard Cite

Inertial actuators (IAs) are often used as control units in active noise and vibration control systems. It is well-known that the IA's natural frequency should be far below that of the structure under control to ensure good stability margins. However, under normal circumstances, an IA with low natural frequency either increases the additional weight or causes unwanted static displacement of the IA's proof-mass. In this study, an IA with virtual mass is presented to reduce the IA's natural frequency without changing its physical design. The virtual mass of the IA is realized by using the proof-mass acceleration feedback as a local loop within the IA. Thus, the IA's natural frequency can be shifted to low frequency for active control application. The proposed IA with virtual mass is then applied to actively control a clamped beam's vibration based on the velocity feedback control system. The experimental results show that the stability of the control system and the control performance can be improved significantly as the IA's natural frequency is reduced with virtual mass.

show abstract

Section: Stability and Control Performancementioning

confidence: 83%

Section: The Ia With Virtual Mass By Using Proof-mass Acceleration Fementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Inertial Actuator with Virtual Mass for Active Vibration Control

Mao¹,

Li²,

Huang³

2020

The International Journal of Acoustics and Vibration

Self Cite

View full text Add to dashboard Cite

show abstract

“…An AVA system basically comprises: (i) the actuator(s), which transmits controlled forces to the target structure so as to minimize its vibrations, (ii) the control system, which calculates in real-time the command (voltage) signal to the actuator, so that the target forces are developed and (iii), the sensors located on the structure, which provide the kinematic information (usually acceleration) required for the controller to calculate the command signal. Several morphologies of actuators have been employed for active vibration control, some examples are electromagnetic proof-mass actuators (Casado et al, 2013;Zhang and Ou, 2015;Mao and Huang, 2019), pneumatic muscle actuators (Bleicher et al, 2011), and multiple rotating-mass actuators (Terrill et al, 2020), amongst others.…”

Section: Introductionmentioning

confidence: 99%

Interaction Phenomena to Be Accounted for Human-Induced Vibration Control of Lightweight Structures

Díaz

Gallegos

Senent

et al. 2021

Front. Built Environ.

View full text Add to dashboard Cite

Inertial mass controllers, including passive, semi-active and active strategies, have been extensively used for canceling human-induced vibrations in lightweight pedestrian structures. Codes to check the vibration serviceability and current controller design approaches assume that both excitation forces and controller forces are the same on a flexible structure and on a rigid structure. However, this fact may not be assumable since interaction phenomena arise even for moderately lightweight structures. Analyzing two case studies in this paper, interaction phenomena involved in the frequency-domain-based design of passive and active inertial mass dampers are discussed. Thus, a general vibration control problem including the interaction phenomena is set hereby. Concretely, this paper deeply discusses the following issues: (i) how the structure to be controlled is affected when human-structure interaction is presented for deterministic and stochastic conditions, (ii) the closed-loop transfer function of the controlled structure including a passive inertial mass damper, and (iii) the closed-loop transfer function of the controlled structure including an active inertial mass damper. In addition, the performed analysis considers the actuator dynamics and the actuator-structure interaction.

show abstract

“…Only a few recent references are given here. In [37], the principle is applied to a single degree of freedom oscillator with an acceleration feedback, to provide a tunable inertia effect to change the resonance frequency. In [38], a similar approach, with displacement feedback, is applied to a multi degree of freedom system (a clamped free piezoelectric beam), with unconditional stability.…”

Section: Introductionmentioning

confidence: 99%