Forces applied to trailer hitch

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SUMMARY

The discussion centers on calculating the forces applied to a trailer hitch when towing a 10,000 lb. trailer downhill on a 6% grade at 65 mph, followed by a complete stop in 5 seconds. The user intends to use these calculations to determine the appropriate plate thickness for their custom hitch and plans to run a Finite Element Analysis (FEA) model. However, due to safety and liability concerns, forum members advise against providing assistance and recommend consulting a professional Mechanical Engineer for guidance.

PREREQUISITES
  • Understanding of basic physics principles, specifically Newton's laws of motion.
  • Familiarity with towing dynamics and weight distribution.
  • Knowledge of Finite Element Analysis (FEA) modeling techniques.
  • Experience with mechanical design and material selection for structural integrity.
NEXT STEPS
  • Research the calculations for dynamic braking forces on trailers.
  • Learn about the principles of Finite Element Analysis (FEA) software, such as ANSYS or SolidWorks Simulation.
  • Study the effects of weight distribution and trailer sway on hitch design.
  • Consult resources on mechanical engineering best practices for custom hitch fabrication.
USEFUL FOR

This discussion is beneficial for mechanical engineers, trailer manufacturers, and DIY enthusiasts involved in towing vehicle design and safety assessments.

MRRM
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If I am towing a 10,000 lb. trailer downhill on a 6% grade at 65 mph and I hit the brakes coming to a complete stop in about 5 seconds, how much force is being applied to the trailer hitch?
I am trying to build my own hitch and the forces applied will help me determine plate thickness. I will be running an FEA model to test it out.
 
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MRRM said:
If I am towing a 10,000 lb. trailer downhill on a 6% grade at 65 mph and I hit the brakes coming to a complete stop in about 5 seconds, how much force is being applied to the trailer hitch?
I am trying to build my own hitch and the forces applied will help me determine plate thickness. I will be running an FEA model to test it out.
Welcome to the PF. :smile:

Because of the liability and life safety issues involved, we can't be of help on a project like that. I'd recommend that you find a local Mentor (preferably a professional ME with this type of experience) to help guide you in your project.

Thread will remain closed.
 
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