ME 3320 Lecture Notes - Lecture 99: Integer Factorization
12 Apr 2020
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Cl load factor, cg gradient factor, cs surface factor. Load factor cl = 1 for gears. Kr reliability factor, kt temperature factor, kms mean stress factor. This whole sn = sncl etc equation involves the strength side of the equation. What we don"t know is the tangential component of the force. Strategy: get stress, get strength, solve for tooth load capacity ft, then derive what power will correlate to the tangential force. Go to geometry factor table to find j. 60 teeth in our gear, so vertical line 60. Other gear that we are mating with also has 60 teeth, but there is no value for 60 here, so have to approximate: N is revolutions for some unit time. To find d, we have number of teeth and the pitch. Find ko value from table 15. 1 and find km value from table 15. 2.
