Showing papers by "Vasudevan Rajamohan published in 2013"
TL;DR: In this article, the authors investigated the dynamic properties of a sandwich beam with magnetorheological (MR) fluid as a core material between the two layers of the continuous elastic structure and derived the governing differential equation of motion in the finite element form for the transverse vibration response of MR fluid sandwich beam.
31 citations
Journal Article•
TL;DR: In this article, a rotating multi-layer beam structure comprising axially homogeneous and non-homogeneous magneto-rheological (MR) fluids layer is investigated and the governing equation of motion of a rotating multilayer MR beam is formulated in finite element form.
Abstract: Vibration responses of a rotating multi-layer beam structure comprising axially homogeneous and non-homogeneous magneto-rheological (MR) fluids layer are investigated. The governing equation of motion of a rotating multi-layer MR beam is formulated in finite element form. The validity of the proposed finite element formulation is demonstrated by comparing the simulation results with those obtained from Ritz method. Simulations are performed to investigate the influences of the rotational speed and the hub radius on the natural frequencies, the loss factor and the mode shapes of the non- homogeneous MR fluid sandwich beam. It is concluded through various parametric studies that in addition to the applied magnetic field, the rotational speed of the MR fluid sandwich beam and the hub radius significantly affects the variation in natural frequencies and the loss factor of the MR adaptive beam. It is also concluded that the application of non-homogeneous MR fluids could also alter the deflection pattern of the beam, particularly the location of the peak deflection.
2 citations