Suppose we have a cylinder, with an off-center slot extending right across one end face. Suppose the surface of that end face is defined as Datum A, and that the axis of the cylinder is defined as Datum B by using a datum callout on the diameter. Also, suppose one side of the off-center slot is...
I was once told by Ken Gitchel of UTS that the correct way to position gear lube nozzles is to direct them at the out-running side of the mesh, because there is actually a negative air pressure there. Does anyone else concur with this ? (In this case I am using oil-air lubrication).
What is the best way of designing an oil filled vibration damper ? The frequency range of concern is perhaps 30-80Hz, at low amplitude (0-.001"). Should such a damper utilize a relatively long viscous restriction or is a short orifice good enough ? According to my edition of the Vibration...
What is the absolute best readily obtainable bolt material for making special bolts of 20mm diameter, from both an ultimate strength and fatigue life standpoint ?
System: XP Professional running Microsoft Word 2002, AutoCAD 2004 Mechanical
Problem: In writing a technical paper, I have been copying diagrams made using AutoCAD to the clipboard and pasting them into a Word document. Some of these diagrams incorporate Greek symbols. If I create the symbols in...
I am trying to get the following old equipment and software to work together :
1. Tektronix 2630 FFT analyzer which uses DOS software
2. HP 7475A Pen Plotter
3. Windows 95 in DOS mode
Its my own equipment and it's all I have available to do an independent project, so please resist the urge to...
Does anyone know the current status of the Columbia investigation ? I saw some time ago that they had physically simulated the foam impact and found that it could have penetrated the wing. I recall reading that an engineer had done a study during the flight, using a "spreadsheet", and...
Does anyone know anything about "liquidmetal" ? After reading about it in Practical Mechanics, I was looking at this website:
http://www.liquidmetal.com/technology/dsp.creators.asp
which contains the following quote :
"Liquidmetal alloys solidify without crystallizing, which...
For programs (or parts of programs) that can be written using either, is there really any difference in speed between compiled VB and Fortran ? I know some developers write VB programs and call Fortran routines from them, but is this really necessary ? Is it really just because they have...
I wouldn't be surprised if this question has been asked before, in which case my apologies. What are the merits of the various programs out there for solving engineering math problems ? If you could only get one or two, which would they be ? (I realise that the replies will probably begin with...
Does anyone out there have a cross sectional engineering drawing of a Bridgeport J2 series spindle head that they could send me ? Service manual type 3D exploded views are no good - it must be something full size or at least something I could scale to get the dimensions of the spindle, bearings...
