Author
J. W. Lund
Bio: J. W. Lund is an academic researcher from Technical University of Denmark. The author has contributed to research in topics: Coupling & Bearing (mechanical). The author has an hindex of 6, co-authored 10 publications receiving 468 citations.
Papers
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231 citations
TL;DR: In this paper, the dynamic bearing coefficients are obtained from a solution to the variational equivalent of Reynolds equation, and a perturbation method is applied to find the individual dynamic coefficients.
Abstract: The dynamic bearing coefficients are obtained from a solution to the variational equivalent of Reynolds equation. A perturbation method is applied to find the individual dynamic coefficients. The Finite Element Method is used in the numerical evaluation of the equations. The flow is assumed to be laminar, the lubricant is Newtonian. Allowance is made for viscosity-temperature dependency in circumferential and axial directions.
77 citations
TL;DR: In this article, the influence de la flexibilite des patins sur les coefficients dynamiques d'un palier a patins oscillants is discussed, i.e.
Abstract: Influence de la flexibilite des patins sur les coefficients dynamiques d'un palier a patins oscillants
59 citations
54 citations
TL;DR: In this article, an analysis for solving the energy equation for a journal bearing film, coupled with the heat conduction equation for the bearing sleeve, is presented, where the analysis approximates the temperature profile across the film thickness by a fourth order polynomial while the circumferential temperature variation is expressed in terms of a Fourier series expansion.
Abstract: An analysis is presented for solving the energy equation for a journal bearing film, coupled with the heat conduction equation for the bearing sleeve. The analysis approximates the temperature profile across the film thickness by a fourth order polynomial while the circumferential temperature variation is expressed in terms of a Fourier series expansion. The solution gives the temperatures of the journal, the bearing sleeve, and the lubricant film from which the viscosity distribution can be obtained for use in solving Reynold’s equation. Because the method is quite economic in computer time it should prove useful in practical calculations of journal bearing performance.
54 citations
Cited by
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01 Sep 2010
TL;DR: In this paper, the authors summarize advances in analytical and numerical modeling, draw attention to the thermodynamic aspects of cavitation, and reflect on physical or experimental observations while reflecting on physical and experimental observations.
Abstract: Even though the list of references associated with this review is rather extensive, in no way does it exhaust the vast literature dedicated to the study of cavitation. The intent was to summarize (i) advances in analytical and numerical modelling, (ii) draw attention to the thermodynamic aspects of cavitation, and (iii) do so while reflecting on physical or experimental observations.
166 citations
TL;DR: In this paper, a review of unsteady flow influences in turbomachinery is presented, and a daunting array of modeling and numerical methods and strategies are found for the user to select.
104 citations
TL;DR: In this article, a system model for analyzing the dynamic behavior of an internal combustion engine crankshaft is described, which couples the crankshaft structural dynamics, the main bearing hydrodynamic lubrication and the engine block stiffness using a system approach.
102 citations
TL;DR: A survey of important papers pertaining to thermal effects in journal bearings is presented in this article, which includes theoretical, computation, and experimental works pertaining to heat effects of journal bearings published in various technical journals.
Abstract: This Paper presents a survey of important papers pertaining to thermal effects in journal bearings. It includes discussions on theoretical, computation, and experimental works pertaining to heat effects in journal bearings published in various technical journals. Presented at the 4191 Annual Meeting in Toronto, Ontario, Canada May 12–15, 1986
101 citations
TL;DR: In this article, the static and dynamic characteristics of the hydrodynamic journal bearings lubricated with ferrofluid were investigated. And the critical speed at which whirling motion begins to occur was calculated.
97 citations