Relationship between Magnetomechanical Damping Capacity and Vibration Modes

材料科学技术（英文）, 1993, 9(5): 365-368.

Relationship between Magnetomechanical Damping Capacity and Vibration Modes

Junsheng LU Baorong WU Dept.of Alloy Steel , Central Iron and Steel Research Institute Beijing , 100081 , ChinaG.J.Wang Dept.of Materials Science and Engineering , University of Pennsylvania , Philadelphia , PA 19104 , USA

Keywords： magnetomechanical damping , null , null , null

The mathematical expressions for magnetomechanical damping capacity are presented by applying Smith-Birchak's model in torsion pendulum and cantilever beam.The peak value ψ_p is found to be related to physical parameters and material constants in the form Kλ_s=αψ_pε_p.which can be used to estimate the magnetostrictive constant λ_s from the damping capacity-strain amplitude curve.A good agreement of experimental data and theoretical prediction was observed in HIDAMETS Cr15A13NiCu.

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Relationship between Magnetomechanical Damping Capacity and Vibration Modes

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