Calculatng displacement

Ryan from Ohio · Post by **Ryan from Ohio** » Thu Sep 07, 2006 4:54 pm

Anyone have a good way of doing this semi accurately without using water/sand?

joeyc · Post by **joeyc** » Thu Sep 07, 2006 5:32 pm

depends on the shape

Ryan from Ohio · Post by **Ryan from Ohio** » Thu Sep 07, 2006 5:38 pm

http://caraudiocentral.net/ryan/images/slade2.jpg

I was looking for a formula. I guess I can calculate it based off the cylinder method and call it good enough. Trying to calculate out the area between the cone/spider just isnt going to happen...

I just like to be as precise as possible...

two4fifteen · Post by **two4fifteen** » Thu Sep 07, 2006 5:43 pm

id say try and find the most similar looking sub that lists displacement and go with that, atleast for a starting point

Post by **GlassWolf** » Thu Sep 07, 2006 5:45 pm

pi*r^2 * (bore^2) * stroke * # of cylinders = displacement!

of divide the box into manageable shapes like triangles, rectangles, etc, and figure it in portions, then add it up.

Ryan from Ohio · Post by **Ryan from Ohio** » Thu Sep 07, 2006 6:04 pm

THis isnt an engine, the sub silly.

Funny you mention engine displacement as it was one of the first links that came up.

I guess that rough displacement Im gonna calculate is it...

Oh well, close enough

solacedagony · Post by **solacedagony** » Thu Sep 07, 2006 7:19 pm

I actually just started pre calc class and we'll be doing conic sections and whatnot near the end.

Chris from MI · Post by **Chris from MI** » Thu Sep 07, 2006 7:45 pm

solacedagony wrote:I actually just started pre calc class and we'll be doing conic sections and whatnot near the end.

Man how I wish I could go back to that class. I just started my Calc III class and Differential Equations this semester. Its definitely going to be a bitch.

You will need a function in order to calculate the area by using conic sections though.

two4fifteen · Post by **two4fifteen** » Thu Sep 07, 2006 8:03 pm

Chris from MI wrote:Man how I wish I could go back to that class. I just started my Calc III class and Differential Equations this semester. Its definitely going to be a bitch.

i feel you. im in calc 3 right now, going in diff eq next semester (hopefully). its hard... so is phys2...

sinister audio · Post by **sinister audio** » Fri Sep 08, 2006 1:07 am

packing peanuts are fairly clean and easy to get ahold of. easy to use for finding sub displacement and box displacement