Recent content by albresco

In sketcher, Sketch>"Data from file" and select your DWG file. It will be inserted on the sketcher If there are too many entities, Wildfire 2 asks which entities you want.

You could try http://www.okino.com/proe.htm

Thanks for your help. The information you have supplied will assist in a remedy. However, at this point, I am trying to quantify the forces exerted on the roll hubs. My client requires a report explaining why these rolls are failing. I was wondering if anyone has done any calculations to...

If your design work is mainly structures, you may wish to give Revit from Autodesk a try.

We have a simple roll case which will have the final roll centre start to crack once the chain starts to wear. The rolls are driven by a series of double/single sprockets. There is no provision for soft start. The cause is due to the slack in the drive chain necessitating the last roll to catch...

Thanks JT This formula is what I need, unfortunately, I am using a made-up strainer so I have no simple way of arriving at a Cv. I need to calculate that value. Doug

Can anyone suggest a calculation method to determine the pressure drop for a fluid through a 10x10 strainer mesh? Viscosity: 200cp Flow: 180 GPM Velocity 8 ft/sec Tube dia: 2.875 ID Screen 56% open area The screen is formed into a vertical basket with a 4" dia flat end. It is 16" long...

In calculating the safe design of a stop for a vertical hoist in case of hoist line failure Is there a simple formula that can be used to calculate the force applied due to the impact loading on the stops? The only formula I can find works by relating static deflection to deflection caused by...

You could try: http://www.geartechnology.com/mag/gt-model.htm Doug

Thank you for your help. If the deflection is different from that stated in CMAA 74 I will need it too. I look forward to your information. Doug

I now have a copy of the CMAA 74 and the calculations appear straight forward although there is not much theory background. In the formula 3.4.4.1, there is a factor "Txy" (Tau subxy) for the horizontal shear stress. There is no formula mentioned to obtain this number. Is this simply...

Does anyone know of a chart available on line for acceptable sizes of crane rails to be used with hoist trolleys. Specifically, I am looking for an acceptable beam to be used for a 10 ton hoist. I have sized the beam but am being questioned about the bending resistance of the bottom flange. The...

You may also want to try this site: http://www.geartechnology.com/mag/gt-model.htm Good luck Doug

This is a new conveyor. We have been told the required delivery, (106 m^3/hr) the screw diameter (20" dia 3/4 pitch) and the length of 21 feet. We must make an assumption about the coefficient of friction but we have been told that the wet pulp has a density of 60lbs/ft^3. Operating time is...

Yes this conveyor is a simple power screw used for axial movement of wood pulp in a paper mill. Mark's Handbook has a calculation for the power requirement but I can't find a formula for the thrust bearing load. Thanks, Doug