Truck Bed Cover and Gas Spring Forces

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SUMMARY

This discussion focuses on the design and calculation of gas spring forces for an aluminum truck bed cover weighing approximately 60 lbs and measuring 52 inches in length. The cover needs to open at an angle of about 30 degrees, with the center of gravity located near the center of the lid. Participants emphasize the importance of understanding the geometry of the gas spring arrangement, including the mounting angles and positions, to ensure the cover opens smoothly and safely. Key calculations involve determining the force exerted by the gas springs based on their angles and the weight of the cover.

PREREQUISITES
  • Understanding of basic physics principles, particularly force and torque.
  • Familiarity with gas spring specifications and mechanics.
  • Ability to create and interpret diagrams for mechanical arrangements.
  • Knowledge of CAD software for modeling and simulation.
NEXT STEPS
  • Research gas spring force calculations and their dependency on angle and mounting position.
  • Learn about the principles of torque and moment equilibrium in mechanical systems.
  • Explore CAD software options for modeling mechanical designs, such as SketchUp or SolidWorks.
  • Investigate different gas spring products from suppliers like McMaster-Carr to compare specifications and pricing.
USEFUL FOR

This discussion is beneficial for mechanical engineers, fabricators, and DIY enthusiasts involved in designing and building custom truck bed covers or similar mechanical systems requiring gas spring assistance.

  • #31
Just as i think i might be starting to understand, things complicate further. :(

I think i have somewhat of an idea anyhow, so i will continue with making the cover, and finding the possible mounting locations, calculate what i think i have learned to be close, and probably post up again with actual figures and maybe with a little help, I can find atleast a range that i should try, and then just try it. I don't have to be spot on, but close would be helpful. It will probably be atleast a week or so before i get all the parts and materials and get it made.

The other option that i know i could handle (non smart version, less brain and more physical) is making the cover and upper mount, and then a makeshift lower mount that i could attach a scale to, and a solid rod in place of the spring, and see what the force or lbs is on the scale when just starting to lift, and at open position. Probably could have done that already by now. :)

Brian
 

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