Experimental investigation of frequency and damping characteristics of magneto-rheological fluid core sandwich beams

Nagiredla, Suryarao; Joladarashi, Sharnappa; Kumar, Hemantha

doi:10.1063/5.0003836

Cited by 1 publication

(1 citation statement)

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“…They fabricated two different types of beams, namely, fully filled beams and partially filled beams, and they used free vibration tests to determine that the equivalent natural frequencies and damping coefficients of the beams could be tuned by varying the magnetic field. Nagiredla et al fabricated a sandwich cantilever beam with glass fiber as the face layer and MR fluid as the core, and they investigated the changes in the natural frequency and damping properties when varying the magnetic field applied to the fluid domain [6]. Lahane investigated the field-dependent storage modulus and the loss factor of a cantilever sandwich beam consisting of an aluminum face material and a MR fluid core and compared the measured data to the calculated values from a 1-DOF lumped model [7].…”

Section: Mr Sandwich Structurementioning

confidence: 99%

Applications of Magnetorheological Fluid Actuator to Multi-DOF Systems: State-of-the-Art from 2015 to 2021

Sohn

Choi

2022

Actuators

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This review article presents various multi-DOF application systems that utilize smart magnetorheological (MR) fluid. It is well known that MR fluid has been actively studied and applied in many practical systems such as vehicle suspension dampers. The design requirements for the effective applications of MR fluid include geometry optimization, working principles, and control schemes. The geometry optimization is mostly related to the size minimization with high damping force, while the working principles are classified into the shear mode, the flow mode, and the squeeze mode depending on the dominant dynamic motion of the application system. The control schemes are crucial to achieve final targets such as robust vibration control against disturbances. It should be addressed that advanced output performances of MR application systems heavily depends on these three requirements. This review article presents numerous application systems such as sandwich structures, dampers, mounts, brakes, and clutches, which have been developed considering the three design requirements. In addition, in this article some merits and demerits of each application system are discussed to enable potential researchers to develop more effective and practical MR application systems featuring the multi-DOF dynamic motions.

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Section: Mr Sandwich Structurementioning

confidence: 99%