Link-spring model of bump-type foil bearings
Nettet3. aug. 2024 · Design/methodology/approach During the study, a bump foil stiffness model considering slip deformation and a two-dimensional sheet top foil model is established, and the Reynolds equation... Nettet1. jul. 2006 · A New Bump-Type Foil Bearing Structure Analytical Model S. Lez, M. Arghir, J. Frěne Engineering 2007 A gas bearing of bump foil type comprises an underlying structure made of one or several strips of corrugated sheet metal covered by a top foil surface. The fluid film pressure needs to be coupled… Expand 106 ... 1
Link-spring model of bump-type foil bearings
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Nettet2. jan. 2014 · Prediction of Dynamic Characteristics of a Bump-Type Foil Bearing Structure with Consideration of Dynamic Friction. January 2014; Tribology Transactions … Nettet16. feb. 2010 · Bump-type foil bearings, which are considered as the best structure for GFBs, can be simply described as a hydrodynamic bearing utilizing the ambient air as …
Nettet1. okt. 2024 · Feng and Kaneko [9] modeled the bump as a link-spring structure. The study points out that individual bump stiffness decreases due to foil deflection and increases with larger frictional coefficient on mating faces. Recently, Lehn et al. [10] applied curve and flat shell elements to model bump strips and top foil respectively. Nettet1. jan. 2009 · Bump-type foil bearings, which are considered as the best structure for GFBs, can be simply described as a hydrodynamic bearing utilizing the ambient air as …
Nettet5. jul. 2024 · Gas foil bearing has been widely used in high-speed turbo machinery due to its oil-free, wide temperature range, low cost, high adaptability, high stability and … Nettet1. apr. 2010 · A complete analytical model of bump-type foil bearings taking into consideration the effects of four factors, i.e., the elasticity of bump foil, the interaction …
Nettet5. jul. 2024 · Gas foil bearing has been widely used in high-speed turbo machinery due to its oil-free, wide temperature range, low cost, high adaptability, high stability and environmental friendliness. In this paper, state-of-the-art investigations of gas foil bearings are reviewed, mainly on the development of the high-speed turbo machinery …
Nettet1. apr. 2024 · The bump foil was modeled as a network of interacting springs, and there are only three degrees of freedom (DOFs) for each bump. Then, this model was extended to the dynamic simulations of a GFB rotor system in [22], in which the friction force was governed by an ordinary differential equation with an approximation of the sign function. skyfall flowers facebookNettet19. mai 2014 · The model investigates the possibility that the flat segment between bumps, in bump foil strip, may deflect laterally and separate from the rigid bearing … swaythling close lincolnNettetA numerical model for 3D thermohydrodynamic analysis of bump-type foil bearings with a sparse mesh across the air film is described. The model accounts for heat … skyfall estate scotlandNettet9. aug. 2024 · In the physical model, the top and bump foils are simply represented by an infinite number of Hookean springs attached to a solid wall with a small amount of ... S. Analytical Model of Bump-Type Foil Bearings Using a Link-Spring Structure and a Finite-Element Shell Model. ASME J. Tribol. 2010, 132, 021706. [Google Scholar] ... swaythling baptist church southamptonNettet21. okt. 2010 · Air-foil bearings (AFBs) are self acting hydrodynamic bearings made from sheet metal foils comprised of at least two layers. The innermost “top foil” layer traps a gas pressure film that supports a load while the layer or layers underneath provide an elastic foundation. swaythling athletic fcNettet18. mar. 2024 · Feng K, Kaneko S. Analytical model of bump-type foil bearings using a link-spring structure and a finite-element shell model. J Tribol 2010; 132: 2–021706. … skyfall flower farm maineNettet1. apr. 2008 · Structural analysis of bump and top foil In the bump foil bearing, the structural parts that play a role as an elastic bearing element are the top and bump foils. Since each element has different characteristic, both analyses were partially conducted and coupling process was executed. swaythling councillors