The influence of contact stress distribution and specific film thickness on the wear of spur gears during pitting tests
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"The influence of contact stress dis..." refers background in this paper
...Under these conditions, some contact between th asperities will occur, and the wear will be greater than in conditions where a full fluid lubricant film is present (Hutchings, 1992)....
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253 citations
"The influence of contact stress dis..." refers background or methods in this paper
...Among the friction models that describe the friction coefficient for gears in contact, emphasis should be given to (i) the DIN 3990 (1987) equation; (ii) the equation described in ISO 6336 (1996); (iii) the model proposed by Michaelis (Winter and Michaelis, 1983); (iv) the Kelly expression, and (v) an equation for FZG gears proposed by Castro (2004)....
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...= −ηµ (3) In his proposal, Michaelis makes reference to the following parameters: the specific normal load (WL) in N/mm; the pinion pitch diameter (d1); the rolling speed (VR); the equivalent arithmetic average roughness of contact surfaces (RaEq); the correction factor that considers what kind of additives exist in the lubricant (XL) and the correction parameter for gears that has coated surface (XC)....
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...In EHD conditions, the film variation as a function of local surface roughness is perhaps best characterized by a parameter proposed by Tallian (1967)....
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...In EHD conditions, the film variation as a function of local surface roughness is perhaps best characterized by a parameter proposed by Tallian (1967). In Eq....
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...Local friction coefficient – µMIC To calculate the friction coefficient on the contact path at each point of the flank of gear teeth, it was used the model proposed by Michaelis (Castro and Seabra, 2007), which is shown in Eq....
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126 citations
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50 citations
"The influence of contact stress dis..." refers methods in this paper
...= −ηµ (3) In his proposal, Michaelis makes reference to the following parameters: the specific normal load (WL) in N/mm; the pinion pitch diameter (d1); the rolling speed (VR); the equivalent arithmetic average roughness of contact surfaces (RaEq); the correction factor that considers what kind of additives exist in the lubricant (XL) and the correction parameter for gears that has coated surface (XC)....
[...]
...Among the friction models that describe the friction coefficient for gears in contact, emphasis should be given to (i) the DIN 3990 (1987) equation; (ii) the equation described in ISO 6336 (1996); (iii) the model proposed by Michaelis (Winter and Michaelis, 1983); (iv) the Kelly expression, and (v) an equation for FZG gears proposed by Castro (2004)....
[...]
...Local friction coefficient – µMIC To calculate the friction coefficient on the contact path at each point of the flank of gear teeth, it was used the model proposed by Michaelis (Castro and Seabra, 2007), which is shown in Eq....
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