CG of Rectangular Frame with Offset Weight: Need Counterweight?

AI Thread Summary
The discussion revolves around the stability of a rectangular frame with an offset weight attached to its lower arm. The main question is whether the weight will create an unbalanced condition and if a counterweight is necessary to maintain a horizontal position. Participants express uncertainty about the torque effects around the attachment point and the appropriate classification of the lower arm as either simply supported or cantilevered. The consensus is that expert input is needed for a definitive answer. Overall, the inquiry highlights the complexities of calculating center of gravity and torque in structural applications.
vscid
Messages
4
Reaction score
0
Hi,

I had a question on CG.
I have a rectangular frame (say made of square tubes) and have a weight fastened to its lower arm (as shown in the attached pic.), which is not fastened on the center of the lower arm but is offset. however, the CG of the weight is in the same line as the pick point P.
In this case, will the weight be unbalanced? (will I need a counterweight to keep it exactly horizontal). If not, would there be a moment in the lower arm?
Would i need a counterweight in any case?
Thanks!
 

Attachments

  • FRAME.jpg
    FRAME.jpg
    7.5 KB · Views: 358
Physics news on Phys.org
Welcome to PF, Vscid.
That's a good question. My instinct tells me that there would be a counter-clockwise torque around the attachment point, but I suspect that the math will say otherwise. I'm not educated in these matters, so hang on for someone else to help you out.
 
If I consider the lower arm as a beam, do I consider it simply supported or cantiliver?
 
Sorry, dude... I can't answer that. I just build stuff.
As I said, though, there are experts here who will help you out shortly.
 

Thread 'Why can't Solar panels be hemispherical, or a curved strip type?'

comparing a flat solar panel of area 2π r² and a hemisphere of the same area, the hemispherical solar panel would only occupy the area π r² of while the flat panel would occupy an entire 2π r² of land. wouldn't the hemispherical version have the same area of panel exposed to the sun, occupy less land space and can therefore increase the number of panels one land can have fitted? this would increase the power output proportionally as well. when I searched it up I wasn't satisfied with...
View full post »

Thread 'The Physics of unloading sand from a barge'

I think it's easist first to watch a short vidio clip I find these videos very relaxing to watch .. I got to thinking is this being done in the most efficient way? The sand has to be suspended in the water to move it to the outlet ... The faster the water , the more turbulance and the sand stays suspended, so it seems to me the rule of thumb is the hose be aimed towards the outlet at all times .. Many times the workers hit the sand directly which will greatly reduce the water...
View full post »

Similar threads

B Simple Counter-balance/Counter-weight Calculation Problem
Replies
3
Views
6K
Drone dragging a hose behind it
Replies
24
Views
1K
Trebuchet Throwing Arm Optimization
Replies
10
Views
3K
Why Do Airplane Wings Have a Natural Forward Pitching Moment?
Replies
34
Views
9K
What is the best beam design for my aluminum tandem axle trailer?
Replies
33
Views
5K
Need maximum weight on an extension machine
Replies
2
Views
664
Raising a farm windmill tower
Replies
5
Views
2K
Steel Frame Design for Hanging Egg Chair: Calculating Weight Limitations
Replies
1
Views
414
12 ton frame lowered on plastic --> What Happens?
Replies
10
Views
2K
Automotive How to find the uneven weight distribution on 4 wheels
Replies
5
Views
3K

Hot Threads

Recent Insights

Back
Top