Active Stabilization of a Hybrid Vibration Absorber Subjected to Velocity Feedback Control

Utsumi, Masahiko

doi:10.2514/1.17273

Cited by 4 publications

(11 citation statements)

References 9 publications

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“…13 The model is shown in Figure 5. The number of the layers is N, and the two hybrid DVAs are attached on the top layer in parallel with the axis of x to suppress the translational vibration and the rotational vibration of the structure.…”

Section: Multimode Vibration Control For Comparisonmentioning

confidence: 99%

“…13 The parameters of both the primary structure and the two hybrid DVAs are given in Table 3. A modal damping ratio 0.01 is introduced to each mode of the layered structure.…”

Section: Multimode Vibration Control For Comparisonmentioning

confidence: 99%

“…Utsumi 13 proposed a stabilisation approach to transform the control law by feeding u a back to the control loop with a positive gain k 0 , where k 0 must equal m a v a 2 accurately, and then D 3 . 0 despite arbitrary systematic parameters.…”

Section: Skyhook Damping Strategymentioning

confidence: 99%

“…13,14 To solve this problem, control approaches that are robust against the uncertainties and variations have been proposed by Utsumi, 13 Wu, 15 Wu et al, 16 Morgan and Wang, 17 and Hillis. 18 For example, Wu 15 and Wu et al 16 proposed a virtual vibration absorber method by using an active control force to emulate an additional passive vibration absorber.…”

Section: Introductionmentioning

confidence: 99%

“…Since these methods can only suppress the tonal vibration with specific frequencies by tuning the DVA parameters actively, they are not well suited for vibration control in a wide bandwidth. 13 For vibration control in a wide frequency band, Utsumi 13 proposed an active control method based on the skyhook damping strategy. This study by Utsumi investigated that the natural frequency of a hybrid DVA can destabilise the closedloop system when a high control gain for the skyhook damping is utilised, thus a stabilisation method was designed by introducing the value of the DVA stiffness into the controller directly.…”

Section: Introductionmentioning

confidence: 99%

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A robust control method of a hybrid vibration absorber for vibration suppression in a wide frequency band considering large structural parameter variations

Yang

Cui

2013

Proceedings of the Institution of Mechanical Engineers, Part I:

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This article presents a robust control method of an active-passive hybrid vibration absorber for vibration suppression in a wide frequency band based on skyhook damping strategy. The technology of linear extended state observer is applied to automatically change pole locations of the system for stabilising the skyhook damping control, so that a high control gain can be used for effective control performance. Simulations on the vibration control of a single-degree-of-freedom primary structure via a hybrid vibration absorber are conducted to analyse the stability and performance of the present method. The results reveal that the present method is effective for vibration suppression and robust against marked parameter variations in both the primary structure and the absorber, when the controller is stabilised. Finally, this article demonstrates the effectiveness of the present approach for active control of multiple hybrid vibration absorbers to suppress multimode vibration. Simulation results show that the robustness against structural parameter variations is significantly improved compared to the previous approach, and all the vibration modes of the primary structure are suppressed effectively. In addition, by means of commercial dynamics software, simulations on vibration control of a cantilever panel via two hybrid absorbers are performed to further demonstrate the control effectiveness for a complex structure, where an analytical model is not available. Results indicate that the present method is effective and stable despite the large changes of the parameters.

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Section: Multimode Vibration Control For Comparisonmentioning

confidence: 99%

“…13 The parameters of both the primary structure and the two hybrid DVAs are given in Table 3. A modal damping ratio 0.01 is introduced to each mode of the layered structure.…”

Section: Multimode Vibration Control For Comparisonmentioning

confidence: 99%

Section: Skyhook Damping Strategymentioning

confidence: 99%