Note: I'm a bit new to this subject, so I'm looking for some general answers, ballparks, and direction to continue my research.
Scenario: I have three electromagnets capable of X amount of holding force attached to a surface. There's a small metal object that weighs 10lbs that will be attached to the magnets. The object is rectangular 36"x5"x5". Wind will be blowing and/or the surface will be moving at a particular speed.
Question: How do I go about solving the strength my magnets need to be in order to safely/securely hold an object of a certain weight with windy conditions?
I started researching about MPH to PSF conversions where it reads that 100mph translates to 25.60psf.
- Is that accurate, and if so, is that additional force applied to my object?
- Since the object is 36" (3 feet), would that be 25.60psf mean: 10lbs over all / 3 feet = 3.334lbs per foot + 25.60 ... So 28.934lbs of force on each magnet? Is that in the ballpark or am I making this up?
I'm assuming that lift may play a part in this as well, or is that in some ways being accommodated by this MPH->PSF conversion?
I imagine the shape of the object would play a role with regards to lift, so would a rectangular simple object as stated have a minimal, near insignificant, amount of lift for this discussion? Again, I'm not exactly sure what I'm talking about here, so please correct me.
Assuming I can figure out the holding force required per magnet per object per conditions here... is there a safe amount/rule of thumb to add to account for unexpected shocks or gusts? Would a steady wind of 70mph be different than 20mph with a 70mph gust?
Sorry for all the questions. It's something I'm trying to read more about and understand better. Again, it's a bit of an open ended question because I'm trying to learn about it/understand it and don't actually have these materials yet.
Thanks in advance!