Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

circular helical sweep?

Status
Not open for further replies.

ProNoob

Mechanical
Joined
Jan 18, 2005
Messages
1
Location
US
I was asked to model a part made b y Bal Seal engineering. The part is a spring that is wrapped into a circle with ends welded together. This has acctually completely puzzled me in terms of how to model. I have no idea where to start. I know it is going to have something to do with modifying the profile of a helical sweep i think but any help would be greatly apprietiated.

Kevin
Alcoa Fujikura lmt
 
You can also create a Datum Curve from Equation and use cylindrical co-ordinates and a sin cos function to create a sweep path.

N=# number of loops in spring
Rmean=# Radius at center of wrapped spring
Rspr=# Radius of spring

theta=360*t
R=Rmean+Rspr*sin(360*t*N)
Z=Rrad*cos(360*t*N)

Use the curve as your sweep path and do an advanced sweep Swp Blend, VSS

Michael
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top