Calculating torque to turn/twist a trailer on wheels when it's not moving

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SUMMARY

The discussion focuses on calculating the torque required to maneuver a 24' x 44' trailer for pastured chickens, weighing approximately 16,000 pounds when loaded. The trailer features four wheels, each with a diameter of 31 inches and a width of 15 inches, which are currently designed with bar tread. The user is considering switching to smooth balloon tires to facilitate easier movement and plans to utilize a winch for towing. Key considerations include the structural integrity of the chassis, alignment of the wheels during movement, and the impact of environmental conditions such as muddy terrain.

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  • Understanding of torque calculations in mechanical systems
  • Familiarity with structural design principles for mobile structures
  • Knowledge of wheel types and their impact on movement
  • Basic principles of winching and towing mechanics
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  • Research torque calculations for mobile structures
  • Explore structural design techniques for chassis stability
  • Learn about different tire types and their effects on traction
  • Investigate winching systems and their applications in towing
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This discussion is beneficial for builders of mobile structures, agricultural engineers, and anyone involved in the design and construction of trailers or similar vehicles for transporting livestock.

Calvin Horst
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I am new to all this. There was another post similar to this, but it was above my current education. I didn't go beyond 8th grade. So, beyond that I learn by doing, and through other friends.

I'm constructing a building on wheels for pastured chickens. 24' wide, 44' Long and weight roughly 16,000 pounds when loaded. Building is capable of moving sideways and end ways.

Wheels are 31" diameter 15" wide with bar tread 4.5" O.C. 1.5" wide bar standing 0.625" high. And 3" in-between the bars. 4 wheels = 4,000 lbs. per wheel.
I am considering putting smooth Balloon tires on which would turn much easier. And pulling the building with a winch.

Another factor is how muddy the field is.
 
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Welcome to PF. :smile:
Calvin Horst said:
I'm constructing a building on wheels for pastured chickens. 24' wide, 44' Long and weight roughly 16,000 pounds when loaded.
Dat's a lot of chickens! Do you have any pictures of similar structures/trailers?
 
AKA Chicken tractor. https://en.wikipedia.org/wiki/Chicken_tractor
https://mobilechickenhouse.com/commercial-chicken-tractor/

Calvin Horst said:
Building is capable of moving sideways and end ways.
How many wheels? To move the structure, you will need to pull on all the wheel modules at the same time. The direction of the pull will need to align the individual wheels.

The problem will be the strength of the framework or chassis. That will come down to the structural design, and how wires are used for cross-bracing.

Wind design will be important. What are the strongest winds it must withstand? What will the walls and roof be made from?

We need a sketch of your basic ideas.
 
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