Chapter 7191At x=11 in:θ=1449(9)(112−92)6(30)(106)(π/64)(1.8754)(11)=4.342(10−4) radObtain allowable slopes from Table 7-2.Left bearing: nf s=Allowable slopeActual slope=0.0010.000 282 3=3.54Right bearing: nf s=0.00080.000 434 2=1.84Gear mesh slope:Table 7-2 recommends a minimum relative slope of 0.0005 rad. While we don’t know theslope on the next shaft, we know that it will need to have a larger diameter and be stiffer.At the moment we can saynf s<0.00050.000 304=1.647-9The solution to Problem 7-8 may be used as an example of the analysis process for a similarsituation.7-10If you have a finite element program available, it is highly recommended. Beam deflectionprograms can be implemented but this is time consuming and the programs have narrow ap-plications. Here we will demonstrate how the problem can be simplified and solved using
This is the end of the preview.
access the rest of the document.
Second moment of area, minimum relative slope, Gear mesh slope