Electromagnetic and structural coupled finite element analysis of active control in an anti-vibration device

Nakamoto, Eiji; Chen, Qingming; Takeuchi, Hitoshi; Brauer, J.R.

doi:10.1109/20.582591

Cited by 6 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This electromagnetic coupling effect was studied by Nakamoto et al [3] and Mizuno [4], who developed a novel EMD concept for vibration mitigation wherein the processes of generating electromagnetic force and reducing undesirable motion were verified using a coupled electromagnetic and structural finite element technique. The work presented in Fleming et al and Behrens et al [5][6][7][8] used electromagnetic transducers for both active and passive feedback control.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Numerical Evaluation of H∞ and H2 Optimal Design Schemes for an Electromagnetic Shunt Damper

Reynolds

2019

Journal of Vibration and Acoustics

View full text Add to dashboard Cite

The electromagnetic coupling effect can generate electromagnetic damping to suppress disturbance, which can be utilized for vibration serviceability control in civil engineering structures. An electrodynamic actuator is used as a passive electromagnetic damper (EMD). Ideally, the EMD is assumed to be attached between the ground and the structure. The kinetic energy of the vibrating structure can be converted to electrical energy to activate the electromagnetic damping. To induce appropriate damping, the two terminals of the damper need to be closed and cascaded with a resonant shunt circuit as an electromagnetic shunt damper (EMSD). In this study, an resistance–inductance–capacitance (RLC) oscillating circuit is chosen. For determination of optimal circuit components and comparing against the tuned mass damper (TMD), existing H∞ design formulae are applied. This work extends this with a detailed development of an H2 robust optimization technique. The dynamic properties of a footbridge structure are then selected and used to verify the EMSD optimal design numerically. The vibration suppression performance is analytically equivalent to the dynamic characteristic of the TMD and has feasible installation and better damping enhancement. To further evaluate the potential application of the EMSD, multi-vibration mode manipulation via connecting multiple RLC resonant shunt circuits is adopted. The multiple RLC shunt circuit connecting to EMD is an alternative to the single mode control of a traditional TMD. Therefore, the EMSD can, in principle, effectively achieve suppression of single and multiple vibration modes.

show abstract

Section: Introductionmentioning

confidence: 99%

Analysis and Numerical Evaluation of H∞ and H2 Optimal Design Schemes for an Electromagnetic Shunt Damper

Reynolds

2019

Journal of Vibration and Acoustics

View full text Add to dashboard Cite

show abstract

“…By FEM discretization of (1) and coupling the stator circuit equations and the rotor cage circuit equations together, the following set of equations results [11]: (6) where the first line of the sub-matrix is the magnetic field equations; the second line is the stator circuit equations; the third line is the branch equations of the rotor bars; the last line is the mesh-current equations of the rotor network. The unknowns are the magnetic vector potentials; are the stator phase currents;…”

Section: Basic Equations Of Induction Motorsmentioning

confidence: 99%

A novel approach to circuit-field-torque coupled time stepping finite element modeling of electric machines

et al. 2000

IEEE Trans. Magn.

View full text Add to dashboard Cite

Abstract-This paper presents a sub-block algorithm for the time stepping finite element solution of problems in which sets of electromagnetic field equations, circuit equations and mechanical equation are coupled together. The proposed method ensures that identical solutions are obtained for the sub-blocks by controlling the step size of the time stepping process. This new method simplifies the process of dealing with coupled-system problems and it also greatly reduces the computation time. A time stepping finite element model of an induction motor is used to demonstrate the proposed method in details.

show abstract

Sensors and actuators: finite element and boundary element analyses and simulations. A bibliography (1997–1998)

Mackerle¹

1999

Finite Elements in Analysis and Design

View full text Add to dashboard Cite

Electromagnetic and structural coupled finite element analysis of active control in an anti-vibration device

Cited by 6 publications

References 2 publications

Analysis and Numerical Evaluation of H∞ and H2 Optimal Design Schemes for an Electromagnetic Shunt Damper

Analysis and Numerical Evaluation of H∞ and H2 Optimal Design Schemes for an Electromagnetic Shunt Damper

A novel approach to circuit-field-torque coupled time stepping finite element modeling of electric machines

Sensors and actuators: finite element and boundary element analyses and simulations. A bibliography (1997–1998)

Contact Info

Product

Resources

About