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1
Content available remote Preparation of construction production of metal sheet for means of transport
Penkała P., Płowaś B
Advances in Science and Technology. Research Journal
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2013
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Vol. 7, nr 17
77--82
EN
The design of sheet metal parts, pressed, used in the automotive industry is very complicated. Many factors influence the final shape of the part. Contemporary designer does not need to have the knowledge needed to understand the essence of its all requirements that are placed on parts of the body. It is only important that they are aware of their existence and know who in the company can help them in their fulfilment of the construction. Nowadays, only the constructor creates a CAD model geometry, which is assumed to provide the functionality. The rest of the aspects such as the provision of adequate stiffness, manufacturability, assembly features, vibration analysis, etc., are the arena of other specialists. This is the essence of constructing simultaneous, where many cell companies often work on the same element, giving it a set of features impossible to obtain by one expert on everything. Therefore, the role of the designer is often limited to being only a CAD system operator.
2
Content available remote Couple-stress and surface roughness effects in curvilinear thrust bearings with a porous pad
Walicka A., Walicki E., Jurczak P., Michalski D.
International Journal of Applied Mechanics and Engineering
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2008
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Vol. 13, no 2
563-574
EN
On the basic of Christensen's stochastic model of rough surfaces, different forms of Reynolds equation with rotational inertia effect are obtained for various types of surface roughness pattern and for couple stress lubricant. As results one obtained the formulae expressing the mean film pressure distribution for externally pressurized bearings and for bearings with a squeeze film. An example of step bearing is considered.
3
Content available remote Rotational inertia and surface roughness effects in curvilinear thrust bearings lubricated by a couple stress fluid
Walicka A., Walicki E.
International Journal of Applied Mechanics and Engineering
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2005
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Vol. 10, no 3
527-541
EN
On the basis of Christensen’s stochastic model of rough surfaces, different forms of Reynolds equation with rotational inertia effect are obtained for various types of surface roughness pattern and for couple stress lubricant. As results one obtained the formulae expressing the mean film pressure distribution for externally pressurized bearings and for bearings with a squeeze film. Examples of spherical and step bearings are considered.
4
Content available remote Rotational inertia and roughness effect in curvilinear thrust bearings
Walicka A., Walicki E.
International Journal of Applied Mechanics and Engineering
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2004
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Vol. 9, no spec.
329-336
EN
On the basis of Christensen's stochastic model of rough surfaces, different forms of Reynolds equation with rotational inertia effect are obtained for various types of surface roughness pattern and for Newtonian lubricant. As results one obtained the generalized formulae expressing the mean pressure distribution and load capacity for externally pressurized bearings. A spherical bearing is discussed as an example.
5
Content available remote Surface roughness effect on the pressure distribution in curvilinear thrust bearings.
Walicki E., Walicka A.
Zagadnienia Eksploatacji Maszyn
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2002
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Vol. 37, nr 3
157-167
EN
On the basis of Christensen's stochastic model of rough surfaces, different forms of Reynolds equation with rotational inertia effect are obtained for various types of surface roughness pattern and for Newtonian lubricant. As results one obtained the formulae expressing the mean film pressure distribution for externally pressurized bearings and for bearings with a squeeze film. A spherical squeeze film bearing is discussed as an example.
PL
Bazując na modelu stochastycznym Christensena dla powierzchni chropowatych, uzyskano różne postacie równania Reynoldsa uwzględniającego bezwładność w ruchu obrotowym dla różnych tekstur chropowatości powierzchni oraz cieczy newtonowskiej. Uzyskano wzory wyrażające rozkład średniego ciśnienia w filmie smarowym zewnętrznie obciążonego łożyska ze ściskanym filmem smarowym. Przykładowo zostało rozpatrzone łożysko ze ściskanym filmem smarowym.
6
Content available remote Couple stress and surface roughness effects in curvilinear thrust bearings
Walicka A., Walicki E.
International Journal of Applied Mechanics and Engineering
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2002
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Vol. 7, Spec. is
109-117
EN
On the basis of Christensen's stochastic model of rough surfaces, different forms of Reynolds equation with rotational inertia effect are obtained for various types of surface roughness pattern and for couple stress lubricant. As results one obtained the formulae expressing the mean film pressure distribution for externally pressurized bearings and for bearings with a squeeze film. A spherical squeeze film bearing is discussed as an example.
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