Hello Gents,
Been a while since I posted here or commented. Good to see this useful set of minds is still very active.
I have a general questions I'd like to discuss and get some thoughts on.
Say I have a mass or inertia and it is being propelled by external forces. Then, it...
Gents,
I have a general question for the experts here that have tuned or designed engine/crankshaft tuned vibration dampers before. (preferably the kind on the C/S nose)
I have been reading through some of the info on the forum here in this regard and am wondering if someone has some good...
Hey everyone,
I have a constant oil supply to a shaft that I need to turn off/on purely mechanically. The oil supply on one side to the shaft never stops. I want to control the oil exiting the other side. Moreover, I want this control to occur when the shaft rotates and stops.
That is, I am...
Hey Gents,
Been looking recently for vibration (accel) data for a typical 4cyl or 3cyl engine head. (Freq, Amp.)
A couple years back I had some, but it seems to have been misplaced.
I thought you guys might have some numbers or graphs for me so I can run a quick input analysis on something...
Hi guys,
I have been having an issue finding and specing a drive/amplifier for a motor (http://www.baldor.com/catalog/BSM90N-275AA)
Closest I have is this: http://www.kollmorgen.com/hi-in/products/drives/servo/s700/s700-servo-drive/ (to which I'm not sure will work)
I want to be able to run...
Hi guys,
I am developing a system that partly involves a system of gears connected together. One of the gears is connected to a system that will exhibit a fluctuating torque which will react into the gear train (3-5 gears in series).
The amount of torque is about 5-18Nm in its fluctuating...
Interesting article. I wonder how this transfers to the rest of the world.
https://image-store.slidesharecdn.com/4b55cf61-6407-4fd3-85c5-79f887663b9d-original.jpeg
Hi guys,
I know this is trivial, but I need more information.
Was wondering if anyone knows of some technical papers that illustrate crankshaft angular excitations for a 4 cyl. IC engine. Preferably something that illustrate how much the excitations diminish with RPM.
Thanks!!
Hey guys,
Was wondering if anyone knows of some good resources (detailed) on torsion spring design? I found this:
http://www.mitcalc.com/doc/springs/help/en/springs.htm
I'm looking for anything I may be able to attain extra insight on, even research papers and such.
Thank you,
Hey guys,
I would like some opinions. Say I have an AC electric motor that has an inductance of 4.5mH and resistance of R= 1 ohm
What is the likelihood I will be able to obtain 200Hz accurate torque fluctuation in the form of a sinus wave? Will the motor drive play a role in the time...
Hey Guys,
I'm working on a project where I have determined I have tight requirements on inertia. I cannot reveal too much about the project, but I can say that I am driving a bunch of motors from one main motor. The main motor provides a strong torque and large inertia to force the system into...
Hey guys,
I have a straightforward question.
I have a DAQ system that can sample at 10,000 Hz max. I now have an application that requires 20,000Hz sampling.
There are several unused ports on the DAQ system. Is there a way to obtain an effective sampling of 20K Hz with the current system...
Just thought some of you might be interested (if you are not aware of already) in the new "adaptive" suspension design that Mclaren came up with for this season. It takes advantage of being a structural component of the suspension arms to comply with the rules...
Hello all,
Anyone have experience with Fusion? It is now available for a free preview (7 months) http://labs.autodesk.com/technologies/fusion/overview/
Particularly for Mac users this is a big deal, as only NX was previously available for OSX.
Cheers,
[peace]
Fe (IronX32)
Hello all,
I am working on a portion of a project that involves using a micro controller as sort of a Data Acquisition tool. We have other DAQ boards directly hooked up to desktop PC's.
But basically, I want something I can just plug into my laptop (say on the field or somewhere where I don't...
Hello Inventor Pros,
I have been using Inventor for a while now for robotic designs and the like.
Recently, a part of a design I am looking into requires first a preliminary basic conceptual CAD model in assembly form. This is usually done just for preliminary motion verification.
However...
Anyone know where I can get a cheap hard copy of this text?
http://www.amazon.com/Dynamics-Theory-Applications-Mechanical-Engineering/dp/0070378460
Thanks!
[peace]
Fe
Simple question guys.
Anyone come across legs or links that have an adjustable length?
For example, there exists synthesis methods for 4-bar linkages in which adjustability of a link provides several advantages.
Has anyone seen a practical version of an adjustable link? For mechanisms or...
Hello fellow eng mates,
I just have a quick info question to ask.
I have been looking for information of force balancing of prismatically actuated mechanisms without luck. The published works (both texts and journals) all conduct force balancing on mechanisms that are actuated at a revolute...
Hello,
This is a general discussion question for everyone. I had a discussion the other day about multi-body dynamics software packages with a colleague. The 3 main packages in competition are Adams, SimMechanics, and MapleSim.
Presume, an R&D company that does work in robotics and...
