- #1
Bending moment diagram for overhanging beam
- Thread starter David Lewis
- Start date
AI Thread Summary
To construct a bending moment diagram for an overhanging beam, start by drawing the free-body diagram and identifying all forces acting on the beam. If the upward forces are equal, treat them as a uniformly distributed load (UDL); if they vary, consider them as a varying distributed load (UVL). For a semi-elliptical load distribution, approximating the load as point loads can simplify calculations. The bending moment can be calculated using the formula F1 * d + F2 * 2d, where F represents the forces and d the distances from the point of interest. Understanding these concepts is crucial for accurately analyzing the bending moments in structural engineering applications.
- #2
lingesh
- 28
- 2
If those upward force components F1...Fn are equal in magnitude,then you can simplify it as UDL. If they are different and varying gradually you can consider it as UVL and solve the problem.
- #3
David Lewis
- 846
- 258
Thanks for your reply. The spar sees a distributed load -- the load diagram is a semi-ellipse. I approximated the distributed load as point loads. I'd like to know the formula to calculate the bending moment, e.g. F1 * d + F2 * 2d...
- #4
Posted June 2024 - 15 years after starting this class. I have learned a whole lot. To get to the short course on making your stock car, late model, hobby stock E-mod handle, look at the index below. Read all posts on Roll Center, Jacking effect and Why does car drive straight to the wall when I gas it? Also read You really have two race cars. This will cover 90% of problems you have.
Simply put, the car pushes going in and is loose coming out.
You do not have enuff downforce on the right...
Scenario 1 (figure 1)
A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material.
The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm).
At this level of stretch, the load cell reads 45N tensile force.
Key numbers...
I'm trying to decide what size and type of galvanized steel I need for 2 cantilever extensions. The cantilever is 5 ft. The space between the two cantilever arms is a 17 ft Gap the center 7 ft of the 17 ft Gap we'll need to Bear approximately 17,000 lb spread evenly from the front of the cantilever to the back of the cantilever over 5 ft. I will put support beams across these cantilever arms to support the load evenly
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