settlement of supports in polar coordinate system
settlement of supports in polar coordinate system
(OP)
Hi,
How can I define settlement of supports in polar coordinate system?
I have to define the settlement in a tunnel (it is 2 cm in radial direction).
I can define that as ux and uy but they have different values according to the location of joints and I am looking for to use polar Coordinate system to define u(r), and u(teta)?
Thank you very much for your help
Jili
How can I define settlement of supports in polar coordinate system?
I have to define the settlement in a tunnel (it is 2 cm in radial direction).
I can define that as ux and uy but they have different values according to the location of joints and I am looking for to use polar Coordinate system to define u(r), and u(teta)?
Thank you very much for your help
Jili





RE: settlement of supports in polar coordinate system
Cheers,
-- drej --
RE: settlement of supports in polar coordinate system
best wishes
jalil
RE: settlement of supports in polar coordinate system
1) How to define the nodes in a cylindrical coordinate system
2) How to define displacement of the nodes in a cylindrical coordinate system
While global and local coordinate systems locate geometry items, the nodal coordinate system orients the degree of freedom directions (Ux, Uy, etc.) at each node. Each node has its own nodal coordinate system, which, by default, is parallel to global Cartesian (REGARDLESS of the active coordinate system in which the node was defined). If you need to ROTATE THE NODES INTO A COORDINATE SYSTEM, you can do this, like you say, using the NROTAT command. This will ensure all displacements of these nodes occur in this coordinate system. If you switch using CSYS and then create the nodes, the nodes will displace in the default cartesian system, even though you defined them in a different system.
Sorry to labour the point, but this is important.
Cheers,
-- drej --