Where to start
Where to start
(OP)
Can anyone help me get started finding the horsepower required to move a rolling bolster weighing 100,000lbs. It will be a servo motor driving a speed reducer with output to a gear that will drive a live shaft which will in turn drive the rear wheels on the bolster. I know my speeds, gear ratios etc. but I'm not sure where to look to find the answer for myself. Thanks in advance
SolidWorks 2006 SP4.1
Windows XP Pro, Pentium4 3.00GHz
1.5 GB RAM, Matrox P650
Logitech Marble Mouse, CadMan





RE: Where to start
One horsepower = 33,000 foot pounds per minute.
If you have the weight and the speeds the rest should be easy.
B.E.
RE: Where to start
Thanks I'll give that a try.
SolidWorks 2006 SP4.1
Windows XP Pro, Pentium4 3.00GHz
1.5 GB RAM, Matrox P650
Logitech Marble Mouse, CadMan
RE: Where to start
You mentioned using a servomotor. If your bolster really weighs 100,000lbs you will likely have inertia matching problems. Check out
http://ww
I would stronly advise bringing in a servomotor distributor/manufaturer at this point to look at your application. Of course, it would be nice to use the same people you intend to buy the system from. They will look at your desired motion profile and all the loads you have in your system and put that information into sizing software to select the best system for you.
RE: Where to start
It will indeed reach the 100,000lbs with the die in place. I think the suggestion of bringing in a servo person is a good idea. I also was wondering if some physical simulation cosmos works or something similar might help. I know getting this load started and stopped is going to be a challenge. We are keeping the speed down at this point, at full speed I would like to achieve approx. 45" per minute. Thanks for the link I will look it over and see if I can absorb a little more knowledge.
Dennis
SolidWorks 2006 SP4.1
Windows XP Pro, Pentium4 3.00GHz
1.5 GB RAM, Matrox P650
Logitech Marble Mouse, CadMan
RE: Where to start
It's all about load mass, torque required to overcome friction after a dead stop, and torque required to accelerate or decelerate.
Depending upon accelerations, you may be surprised at how little horsepower you need to drive this load.
TygerDawg
RE: Where to start
RE: Where to start
Thank you both for a lot of good information. If nothing else I will have some good questions to ask the servo guy when he shows up. Maybe even be able to check his work.
Dennis
SolidWorks 2006 SP4.1
Windows XP Pro, Pentium4 3.00GHz
1.5 GB RAM, Matrox P650
Logitech Marble Mouse, CadMan