Multi-turn wave washer

[dept664]

So, I've created a single-turn wave washer using sin(trajpar*#*360)/h, where # is the number of waves, and h is the amplitude of each wave. I understand that.


Now I want to make it a multi-turn wave washer (like the Smalley C series). It's probably some combination of a helical turn and trajpar, but I can't figure it out.


Any help would be appreciated.

 

[kenppy]

helical path and then vss with trajpar on that gets most of the way.

View attachment 5123

 

[dept664]

kenppy,


Ican't make this work at all. Must be doing something stupid. Would you be willing to send me your model? Thanks for your help! [email protected]
Edited by: dept664

 

[tobbo]

it seems like kenppy first made a helical trajectory , maybe by using VSS and a relation ,(iow, the first rotating surface when you do a spring using VSS , there is your helical path)


View attachment 5124


Then, on the helical path , another VSS using the relation You posted. (and hide the first surf)


View attachment 5125


then just thicken the surf.


View attachment 5126


Anyway, I would have done in that way i think...


//Tobias
Edited by: tobbo

 

[dept664]

Okay. Between kenppy and Tobias, I was finallyable to wrap my head around it and came up with what I want.


View attachment 5128


This is pretty true to a Smalley C200-H1, modeled at the working height of .197 (inches). It's3-turns, 4.5 waves/turn, .024 wire thickness X .148 radial wall. Took a bit of tweaking and tongue sticking out my mouth to get it looking right, but the end result is satisfying.


The file is attached if you want to play with it. Thanks for all the help!


Gary


2011-05-24_132545_temp_wave.zip