Author
B.C. Majumdar
Other affiliations: Karlsruhe Institute of Technology, Indian Institutes of Technology
Bio: B.C. Majumdar is an academic researcher from Indian Institute of Technology Kharagpur. The author has contributed to research in topics: Bearing (mechanical) & Reynolds equation. The author has an hindex of 18, co-authored 70 publications receiving 1049 citations. Previous affiliations of B.C. Majumdar include Karlsruhe Institute of Technology & Indian Institutes of Technology.
Papers published on a yearly basis
Papers
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Book•
01 Jan 2014
TL;DR: This chapter discusses the design of Hydrodynamic Lubrication of Rolling Contacts, as well as the effects of Inertia Effects and Turbulence in Fluid Film L lubrication.
Abstract: Preface Acknowledgements List of Symbols Chapter 1: Introduction Chapter 2: Viscosity and Rheology of Lubricants Chapter 3: Mechanics of Lubricant Films and Basic Equations Chapter 4: Hydrodynamic Lubrication Chapter 5: Finite Bearings Chapter 6: Thermohydrodynamic Analysis of Fluid Film Bearings Chapter 7: Design of Hydrodynamic Bearings Chapter 8: Dynamics of Fluid Film Bearings Chapter 9: Externally Pressurized Lubrication Chapter 10: Fluid Inertia Effects and Turbulence in Fluid Film Lubrication Chapter 11: Gas-lubricated Bearings Chapter 12: Hydrodynamic Lubrication of Rolling Contacts Chapter 13: Elastohydrodynamic Lubrication Chapter 14: Vibration Analysis with Lubricated Ball Bearings Chapter 15: Thermal Effect in Rolling-Sliding Contacts Index
229 citations
01 Feb 2004
TL;DR: In this paper, the steady state and dynamic characteristics including whirl instability of water-lubricated journal bearings having three axial grooves are obtained theoretically. And the dynamic behaviour in terms of stiffness and damping coefficients of film and stability are found using a first-order perturbation method.
Abstract: The steady state and dynamic characteristics including whirl instability of water-lubricated journal bearings having three axial grooves are obtained theoretically. The Reynolds equation is solved numerically by the finite difference method satisfying the appropriate boundary conditions. The dynamic behaviour in terms of stiffness and damping coefficients of film and stability are found using a first-order perturbation method. It has been shown that both load capacity and stability improve when smaller groove angles are used.
53 citations
TL;DR: In this paper, the influence of the roughness parameter (C) and roughness patterns (longitudinal, transverse and isotropic) on the steady state and dynamic characteristics of hydrodynamic journal bearings with rough surfaces has been studied using the model of Christensen and Tonder.
47 citations
01 Jun 2004
TL;DR: In this paper, the stiffness and damping characteristics of isothermal, elastohydrodynamically lubricated point contact problems are evaluated numerically considering the surface roughness effect and variation in viscosity with pressure.
Abstract: The stiffness and damping characteristics of isothermal, elastohydrodynamically lubricated point contact problems are evaluated numerically considering the surface roughness effect and variation in viscosity with pressure. A set of equations under steady-state and dynamic conditions is derived from the classical Reynolds equation using the linear perturbation method. The elasticity equation and steady-state Reynolds equation are solved simultaneously using the finite difference method with the successive over-relaxation scheme, whereas the dynamic pressures are found after solving the set of perturbed equations using the previously obtained steady-state pressures. The load capacity is obtained from the steady-state pressure distribution. The stiffness and damping coefficients of the contact are determined using the dynamic pressures. Then the overall stiffness and damping matrices of the ball bearing are obtained from the load distribution, coordinate transformation, and compatibility relations.
36 citations
01 Jun 2004
TL;DR: In this paper, a numerical solution for the stiffness and damping characteristics of an isothermal, elastohydrodynamically lubricated point contact is presented considering the surface roughness effect an...
Abstract: A numerical solution for the stiffness and damping characteristics of an isothermal, elastohydrodynamically lubricated point contact is presented considering the surface roughness effect an...
34 citations
Cited by
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University of Groningen1, PSL Research University2, École centrale de Lyon3, Delft University of Technology4, University of Padua5, Imperial College London6, Luleå University of Technology7, IMT Institute for Advanced Studies Lucca8, Technical University of Denmark9, University of Cape Town10, University of Southampton11, École Polytechnique Fédérale de Lausanne12, Aarhus University13, King's College London14, Hamburg University of Technology15, Czech Technical University in Prague16, Instituto Politécnico Nacional17, Polish Academy of Sciences18, University of Turin19, University of Trento20, Queen Mary University of London21, Saarland University22
TL;DR: This review summarizes recent advances in the area of tribology based on the outcome of a Lorentz Center workshop surveying various physical, chemical and mechanical phenomena across scales, and proposes some research directions.
347 citations
TL;DR: A comprehensive survey of the literature of the most relevant analytical, numerical, and experimental approaches for the kinematic and dynamic analyses of multibody mechanical systems with clearance joints is presented in this review.
271 citations
TL;DR: In this paper, the performance characteristics of a hydrodynamically lubricated journal bearing with a Bingham fluid are derived by means of three-dimensional computational fluid dynamics (3-D CFD) analysis.
210 citations
TL;DR: In this article, the potential use of laser surface texturing (LST) in hydrodynamic journal bearings is examined theoretically, and the effect of such a texture on load capacity and on the attitude angle of the journal bearing is investigated.
Abstract: The potential use of laser surface texturing (LST) in hydrodynamic journal bearings is examined theoretically. The regular surface texture has the form of micro-dimples with preselected diameter, depth, and area density. It can be applied to only a certain portion of the bearing perimeter (partial LST) or the full bearing perimeter (full LST). The effect of such a texture on load capacity and on the attitude angle of the journal bearing is investigated in the present work. The optimum parameters of the dimples and favorable LST mode for maximum load capacity have been found.
139 citations
Journal Article•
128 citations