Results 1 to 10 of about 29,985 (169)
Design of elastic and dissipation joints in bearing structures of electronic packages [PDF]
Mathematical modeling and experimental research represented in this paper is aimed at dynamic force analysis of circuit cards in order to eliminate or reduce dynamic stress and deflection to an acceptable level and to provide strength and reliability in ...
Kovtun Igor +3 more
doaj +1 more source
Influence of Dry Friction on the Dynamics of Cantilevered Pipes Conveying Fluid
A cantilevered pipe conveying fluid can lose stability via flutter when the flow velocity becomes sufficiently high. In this paper, a dry friction restraint is introduced for the first time, to evaluate the possibility of improving the stability of ...
Zilong Guo +4 more
doaj +1 more source
The paper proposes the study of dry friction by means of a short eccentric rotor. The rotor was designed and realised in the laboratory. In an ideal frictionless situation, a rotor actuated by gravity will have an angular velocity which increases ...
Stelian Alaci +5 more
doaj +1 more source
Efficiency of polymer materials in highly loaded systems in the aviation industry
The static coefficient of friction was calculated on an inclined plane tribological stand. Different specimens and masses loading the system were used during the experiment. Surface-to-surface contact was tested in a pin-on-plate setup.
Anita Ptak +3 more
doaj +1 more source
Projective dynamics with dry frictional contact [PDF]
Projective dynamics was introduced a few years ago as a fast method to yield an approximate yet stable solution to the dynamics of nodal systems subject to stiff internal forces. Previous attempts to include contact forces in that framework considered adding a quadratic penalty energy to the global system, which however broke the simple - constant ...
Ly, Mickaël +3 more
openaire +2 more sources
Dry Eye Etiology: Focus on Friction [PDF]
International ...
van Setten, Gysbert Botho +2 more
openaire +4 more sources
Sliding Friction on Wet and Dry Sand [PDF]
We show experimentally that the sliding friction on sand is greatly reduced by the addition of some-but not too much-water. The formation of capillary water bridges increases the shear modulus of the sand, which facilitates the sliding. Too much water, on the other hand, makes the capillary bridges coalesce, resulting in a decrease of the modulus; in ...
Fall, Abdoulaye +7 more
openaire +4 more sources
INCREASING THE SAFETY OF WALKING ON RUBBER FLOOR MAT [PDF]
The present research investigates friction coefficient of bare foot sliding against four types of rubber floor mats to simulate the sliding conditions in bathrooms. Tests were carried out at dry and detergent wetted mats.
A. T. Hassouna +2 more
doaj +1 more source
Experimental Investigation of Dry and Cryogenic Friction Stir Welding of AA7075 Aluminium Alloy
An attempt has been made to investigate dry and cryogenic friction stir welding of AA 7075 aluminium alloy, which is predominantly availed in aerospace and defence component industries.
A. Praveen Raj Navukkarasan +3 more
doaj +1 more source
Nonlinear vibration response of a helicopter supercritical tail rotor drive shaft equipped with a dry friction damper [PDF]
Purpose – The supercritical design of tail rotor drive shaft has attracted more attention in helicopter design due to its high power–weight ratio and low maintenance cost.
Liyao Song +4 more
doaj +1 more source

