Hot Alignment
Hot Alignment
(OP)
Measure the distance from the shaft centerline down to the base of the feet. Take a surface temperature of the foot/case every inch or two along that distance and do the math. A known temperature distribution over a known distance of a known material provides a known growth.
Can someone please elaborate above statement?
Can someone please elaborate above statement?





RE: Hot Alignment
Have you made the suggested measurements, so we might have a real data set to examine?
Basically, the statement suggests doing a piecewise approximation of a thermal gradient, which is likely to be continuous. But you can get close enough for most purposes by dividing the part as suggested, putting imaginary latitude planes between the temperature measurement targets, and assuming that the entire 'lamination' corresponding to a particular temperature is at that temperature.
The statement doesn't address the issue of expansion along the shaft axis, which should be addressed, but separately.
Mike Halloran
Pembroke Pines, FL, USA
RE: Hot Alignment
Johnny Pellin