Build a 2-Ton Foldable Engine Crane - Design & FBD

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I want to build a foldable engine crane that can lift 2 ton of load. Can anyone tell me how to design it and draw a free body diagram complete with formula to determine loads at each point.

 

[brewnog]

This looks like homework. How far did you get with the FBD and calculations?

 

[ravenprp]

Designing a 2-ton foldable engine crane requires careful consideration of the materials, dimensions, and structural support needed to safely lift and support such a heavy load. Here are the steps to design and draw a free body diagram (FBD) for this project:

1. Determine the maximum load capacity: The first step is to determine the maximum load capacity of the crane, which in this case is 2 tons or 4000 pounds.

2. Choose materials: The materials used for this project should be strong and durable enough to support the weight of the load. Steel is a commonly used material for cranes, so you may want to consider using steel tubing for the main frame and legs.

3. Determine dimensions: The dimensions of the crane will depend on the materials used and the desired height and reach of the crane. The main frame should be long enough to support the boom and the legs should be wide enough to provide stability.

4. Design the main frame: The main frame is the backbone of the crane and should be designed to withstand the weight of the load. You can use a truss design, which consists of triangular structures, to distribute the weight evenly and provide maximum support.

5. Add the boom: The boom is the arm of the crane that extends out to reach the load. It should be designed to be strong and rigid enough to support the load at its maximum reach. You can use a telescoping design to allow for adjustability in the length of the boom.

6. Include a hydraulic system: A hydraulic system will be needed to raise and lower the boom. This system should be designed to handle the weight of the load and provide smooth and controlled movement.

7. Design the legs: The legs of the crane should be designed to provide stability and support. They should be long enough to keep the crane from tipping over and strong enough to support the weight of the load.

8. Draw the FBD: Once you have designed the crane, you can draw a free body diagram to show the forces acting on the crane. The FBD will include the weight of the load, the force from the hydraulic system, and the reaction forces from the ground at each leg.

9. Calculate the loads at each point: To determine the loads at each point, you will need to use the formula F=ma, where F is the force, m is the mass, and a is the acceleration. In this case, the acceleration will be the acceleration due to gravity