Coupled axisymmetric finite element model of a hydraulically amplified magnetostrictive actuator for active powertrain mounts

Chakrabarti, Saswat; Dapino, Marcelo J.

doi:10.1016/j.finel.2012.05.003

Cited by 27 publications

(14 citation statements)

References 30 publications

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“…Electromagnetic field of giant magnetostrictive structure can be analyzed by finite element method [12][13][14][15]. GMM is magnetized to generate magnetostriction, its operating principle is as shown in figure 4.…”

Section: Electromagnetic Field Analysis Of Giant Magnetostrictive Str...mentioning

confidence: 99%

Electromechanical coupling measurement of a new giant magnetostrictive structure for double-nut ball screw pre-tightening

Lin

2016

Meas. Sci. Technol.

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Under the action of an external magnetic field, giant magnetostrictive material (GMM) is magnetized and generates magnetostriction, so its dimension will change accordingly. In this work, two giant magnetostrictive structures are proposed for ball screw pre-tightening, but a finite element calculation shows that solid cylindrical GMM is better than a hollow one because it has a more uniform magnetization intensity. So a solid cylindrical GMM is used to build a ball screw pre-tightening structure. Experiments show that when the working current changes from −3 A to 3 A, the magnetostrictive structure made of ϕ 10 × 120 mm GMM will output magnetostrictive deformation in the form of pre-tightening force, which is up to 1892.87 N. The axial rigidity performance of ball screw is improved by pre-tightening force adjustment. This research not only lays the theoretical and experimental foundations for applying a giant magnetostrictive structure to double-nut ball screw pre-tightening, but also provides a new method for the timely adjustment of a double-nut ball screws pre-tightening force.

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Section: Electromagnetic Field Analysis Of Giant Magnetostrictive Str...mentioning

confidence: 99%

Electromechanical coupling measurement of a new giant magnetostrictive structure for double-nut ball screw pre-tightening

Lin

2016

Meas. Sci. Technol.

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“…The other integral items have similar results. Substitute them into " H z and one gets " So equation (18) is acquired.…”

Section: Appendixmentioning

confidence: 99%

“…As magnetic field calculation for a GMA is an electromagnetic computation problem, some scholars established FEM of the actuator. 16–19 By numerical computing method, the FEM can describe the detailed distribution of the magnetic field on the whole GMM rod. Then the axial magnetic field distribution can be obtained using some fitting methods.…”

Section: Introductionmentioning

confidence: 99%

Revised reluctance model of the axial magnetic field intensity within giant magnetostrictive rod

Xue

Zhang

Zhao

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part C:

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A theoretical magnetic field intensity model within giant magnetostrictive material was presented. This model was established just like the reluctance model, while could describe the non-uniform distribution flexibly for its integral form. This model employed magnetic circuit theorem calculating the mean of the magnetic field, while used a normalized function describing the distributing character. The distributing function was determined by Biot–Savart law and relative permeability of the material. The model was validated with the help of the experimental device. At last, the fitting degree of the model with the tested results in predicting the performance of the actuator is researched.

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“…As examples, in [17,18], the authors implemented nonlinear FEM in static or quasi-static conditions. Fully coupled nonlinear magneto-elastic models for magnetostrictive transducers are presented in [19,20]. However, the resulting model equations presented in [19,20] are coded into the commercial finite element package COMSOL, which is used for meshing and global assembly of matrices.…”

Section: Introductionmentioning

confidence: 99%

Finite Element and Experimental Analysis of an Axisymmetric Electromechanical Converter with a Magnetostrictive Rod

Stachowiak

Demenko

2020

Energies

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The paper presents the numerical and experimental investigations of the axisymmetric magnetostrictive actuator with a Terfenol-D rod. The applied model consists of equations that describe the magnetic and mechanical displacement fields. The equations of both fields are coupled through a nonlinear magneto-mechanical constitutive law. The model is considered as 2D axisymmetric. The finite element method is used to solve the field equations. Special attention is paid to the proper definition of magneto-mechanical relations. These relations are formed from measurements. A unique test stand is designed for the experimental investigation. The selected results of the simulation are compared with the measurement results. The comparison shows that the applied numerical model is sufficiently accurate.

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Coupled axisymmetric finite element model of a hydraulically amplified magnetostrictive actuator for active powertrain mounts

Cited by 27 publications

References 30 publications

Electromechanical coupling measurement of a new giant magnetostrictive structure for double-nut ball screw pre-tightening

Electromechanical coupling measurement of a new giant magnetostrictive structure for double-nut ball screw pre-tightening

Revised reluctance model of the axial magnetic field intensity within giant magnetostrictive rod

Finite Element and Experimental Analysis of an Axisymmetric Electromechanical Converter with a Magnetostrictive Rod

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