A review of non-linear structural control techniques

Wagg, DJ; Neild, Simon A

doi:10.1177/2041298310392855

Cited by 6 publications

(3 citation statements)

References 146 publications

(146 reference statements)

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“…Traditional passive control devices include base isolation systems [16][17][18][19], traditional tuned mass dampers (TMDs) [20,21] and viscous dampers [22][23][24]. Background information on these systems can be found in [25][26][27]. The idea of using inerters in base isolation systems for buildings has been recently proposed by [28,29].…”

Section: Introductionmentioning

confidence: 99%

Using an inerter‐based device for structural vibration suppression

Lazar

Neild

Wagg

2013

Earthq Engng Struct Dyn

583

388

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SUMMARYThis paper proposes the use of a novel type of passive vibration control system to reduce vibrations in civil engineering structures subject to base excitation. The new system is based on the inerter, a device that was initially developed for high‐performance suspensions in Formula 1 racing cars. The principal advantage of the inerter is that a high level of vibration isolation can be achieved with low amounts of added mass. This feature makes it an attractive potential alternative to traditional tuned mass dampers (TMDs). In this paper, the inerter system is modelled inside a multi‐storey building and is located on braces between adjacent storeys. Numerical results show that an excellent level of vibration reduction is achieved, potentially offering improvement over TMDs. The inerter‐based system is compared to a TMD system by using a range of base excitation inputs, including an earthquake signal, to demonstrate how the performance could potentially be improved by using an inerter instead of a TMD. Copyright © 2013 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

Using an inerter‐based device for structural vibration suppression

Lazar

Neild

Wagg

2013

Earthq Engng Struct Dyn

583

388

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“…They have highlighted the difficulty of achieving robust control on very flexible aircraft with linear control schemes when it was subject to large disturbances. The control of nonlinear structures in general has been partially reviewed by Wagg and Neild, 12 with methods including adaptive control, feedback linearisation of nonlinear systems and the use of Lyapunov-based methods. In particular, Strganac 13 has tackled nonlinear control by using feedback linearisation to transform a relatively small nonlinear aeroelastic system into a linear one.…”

Section: Introductionmentioning

confidence: 99%

Robust Aeroelastic Control of Very Flexible Wings using Intrinsic Models

Wang

Wynn

Palacios

2013

54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

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This paper explores the robust control of large flexible wings when their dynamics are written in terms of intrinsic variables, that is, velocities and stress resultants. Assuming 2-D strip theory for the aerodynamics, the resulting nonlinear aeroelastic equations of motion are written in modal coordinates. It is seen that a system which experiences large displacements can nonetheless be accurately described by a system with only weak nonlinear couplings in this description of the wing dynamics. As result, a linear robust controller acting on a control surface is able to effectively provide gust load alleviation and flutter suppression even when the wing structure undergoes large deformations. This is numerically demonstrated on various representative test cases.

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“…For example, semi-active control methods have been used extensively for automotive semi-active suspension systems (Ahmadian and Blanchard, 2011; Besinger et al, 1992; Biglarbegian et al, 2008; Collette and Preumont, 2010; Crews et al, 2011; Chen et al, 2011; Giorgetti et al, 2006; Hong et al, 2002; Ihsan et al, 2008; Jalili, 2002; Kitching et al, 2000; Sammier et al, 2003; Shen et al, 2006; Verros et al, 2005; Turnip et al, 2010). A more general introduction to semi-active control techniques can be found in Casciati et al (2006) or Preumont (2002) and other relevant review articles are given by Housner et al (1997), Spencer and Nagarajaiah (2003) and Wagg and Neild (2011). Semi-active control is also used in many civil/structural engineering applications – see, for example, studies by Chen and Chen (2004), Xu et al (2006), Casciati and Ubertini (2008), Bani-Hani and Sheban (2006), Nagarajaiah and Narasimhan (2007), Bahar et al (2010), and references therein.…”

Section: Introductionmentioning

confidence: 99%

Semi-active damping using a hybrid control approach

Gawthrop

Neild

Wagg

2012

Journal of Intelligent Material Systems and Structures

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In this article, a hybrid control framework is used to design semi-active controllers for vibration reduction. It is shown that the semi-active skyhook damper, typically used for vibration reduction, can be recast in the framework of an event-driven intermittent controller. By doing this, we can then exploit the well-developed techniques associated with hybrid control theory to design the semi-active control system. Illustrative simulation examples are based on a 2 degree-of-freedom system, often used to model the dynamics of a quarter car body model. The simulation results demonstrate how hybrid control design techniques can improve the overall performance of the semi-active control system.

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A review of non-linear structural control techniques

Cited by 6 publications

References 146 publications

Using an inerter‐based device for structural vibration suppression

Using an inerter‐based device for structural vibration suppression

Robust Aeroelastic Control of Very Flexible Wings using Intrinsic Models

Semi-active damping using a hybrid control approach

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