LUKE_L  
                
                  
                    March 11, 2008, 11:26am
                   
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              I’m too rusty to remember how to do simple force equations at the moment and don’t feel like diggin out my Statics book right now.
Anyone want to give this a go for me?
AB = 6 inches
I need to know the Force of Vector BC to support AD.
EDIT: Angle A is 50 degrees…Sorry
             
            
              
            
           
          
            
              
                Fry  
              
                  
                    March 11, 2008, 11:40am
                   
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              Angles muthafucka!  Angles!
Can’t solve.  Need more info.
             
            
              
            
           
          
            
            
              What does this have to do with general automotive? Fuzzy is correct the answer is 42
             
            
              
                
            
           
          
            
              
                Fry  
              
                  
                    March 11, 2008, 11:53am
                   
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As for the Gen Auto thing, maybe he’s designing something custom for the Grand Am?  We’ll give him time to explain…
             
            
              
            
           
          
            
            
              not enought info… unless you want the answer as a variable
angles? fixed points? pivot points? what are the lenghts of each/every segment?  The only force applied is uniformly along the length of AD?
             
            
              
            
           
          
            
              
                LUKE_L  
              
                  
                    March 11, 2008, 12:36pm
                   
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              EDIT: Angle A is 50 degrees. Yeah that would have helped. Sorry everyone. I feel like a db.
Length BC is Adjustable. Pivot points at A B and C. Length AC is unknown really but if you made it variable to give options that would be fine.
Fry…you are correct. I am looking to install some struts under my hood (ie. Adios Senior Prop Rod). I could just buy a “AutoZone” equivalent that would work but where is the fun in that?
             
            
              
                
            
           
          
            
              
                Fry  
              
                  
                    March 11, 2008, 12:55pm
                   
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              To make the math easier we’ll make ABC a 6-8-12 right triangle.
The verticle Force at the centroid of the beam is 40 pounds.
So that makes torque at A = 25.7 * 20 = 514 in-lbs
43/cos(50) = 62.5 pounds
Maybe.  I haven’t done statics in probably 5 years.  Might have made a mistake.  A vertical load on BC of 62.5 pounds seems reasonable though.  :shrug:
             
            
              
            
           
          
            
              
                Nikuk  
              
                  
                    March 11, 2008,  1:03pm
                   
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              I just want to know if Fuzzy was right.
Because if he wasn’t then why did jrod jump in to verify it?
             
            
              
            
           
          
            
              
                Fry  
              
                  
                    March 11, 2008,  1:15pm
                   
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I think jrod forgot a question mark.
             
            
              
            
           
          
            
            
              [hi-jack]This thread reminded me of a few…
  
  
    Dark Roasted Blend
   
  
    
    
  
  
 
  
  
    Dark Roasted Blend
   
  
    
    
  
  
 
[\hi-jack]
             
            
              
                
            
           
          
            
              
                LUKE_L  
              
                  
                    March 12, 2008,  3:36am
                   
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 Fry:
 
To make the math easier we’ll make ABC a 6-8-12 right triangle.
The verticle Force at the centroid of the beam is 40 pounds.
So that makes torque at A = 25.7 * 20 = 514 in-lbs
43/cos(50) = 62.5 pounds
Maybe. I haven’t done statics in probably 5 years. Might have made a mistake. A vertical load on BC of 62.5 pounds seems reasonable though. :shrug:
 
 
I really can’t disagree because I too haven’t done this in like 4 years.
Thanks for working this out for me.
             
            
              
            
           
          
            
              
                Bacon  
              
                  
                    March 12, 2008,  6:06am
                   
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It is always the answer, it’s the answer to everything you know and see.