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Question:

I'm working on a spring isolation layout that will suspend a ceiling on a 4x4 grid with each spring located at?

each point on the grid. The weight of each 4x4 area is 144# ( square footage is 9# PSF ) which I divide into four seperate areas and come up with a reaction so I know what spring to use at each point. The basic areas are easy to calculate because it's either rectangular or square but some areas are cut up, for example there are areas shaped like an L on the grid with two rectangular sides and I don't know how to get their reaction because there are more than four points. Could someone show me a formula for this?

Answer:

Sounds like you will probably need to break up the oddly shaped areas, and consider them as a collection of rectangles. However, my understanding is still a little fuzzy. What's this reaction stuff? I don't have a clear picture of the layout in my head.
Apr 14, 2017

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