How can I identify the functions which are used in multilinear spring in MCT Command shell?

Creation date: 10/17/2018 9:46 PM Updated: 9/12/2023 12:30 PM

Question:

Here are my concenrs considering the latest update on multi-linear springs.

On previous versions, the format of the input using MCT Command file is:

*SPRING

301105TO301205BY100, MULTI, 1, 6, 0, 0, 1, 0, 0, 0.15, 0, 0.3, 0, 0.6, 0, 1.2, 0, 3, 0, pilespringliq, 0, 0, 0, 0, 0 ;

However with the recent update wherein multi-linear spring are not limited to 6 points anymore, the MCT command file looks like this:

*SPRING ; Point Spring Supports

; NODE_LIST, Type, SDx, SDy, SDz, SRx, SRy, SRz, GROUP, FROMTYPE, EFFAREA, Kx, Ky, Kz ; LINEAR

; NODE_LIST, Type, Direction, Vx, Vy, Vz, Stiffness, GROUP, FROMTYPE, EFFAREA ; COMP, TENS

; NODE_LIST, Type, Multi-Linear Type, Direction, Vx, Vy, Vz, ax, ay, bx, by, cx, cy, dx, dy, ex, ey, fx, fy, GROUP, FROMTYPE, EFFAREA ; MULTI

301100to301400by100 , MULTI , 0, 2, 0, 0, 0, 2, pilespringfull, 0, 0, 0, 0, 0

*FORCES-DEFORMATION FUNCTION ; Forces-Deformation Function

; FUNC=NAME, FTYPE, SYMM, ID ; line 1

; X1, Y1, X2, Y2, ... ; from line 2

FUNC=cccc, FORCE, YES, 1

0.0000, 0, 0.0364, 256, 0.1618, 400

0.2181, 405, 0.7270, 78, 1.4541, 78

My questions are:

1. In MCT file how can i verify the force deformation function (for this case function name is cccc is applied to Nodes 301100to301400by100 as i cannot see in the MCT command for spring notation for the force-deformation ID?

2. Previously ive developed how to export my pile spring values thru excel with the proper syntax of MCT command. Now, how can i do it? It seems i need to defined the deformation functions first and then in MCT and in the Boundary Tables/Poingt spring supports assign corresponding Force-deformation for each node. Is that correct? or any faster way to do it?

Answer:

Kindly refer the image below on how the function used in multilinear spring could be known.

As for the definition using excel, the force deformation functions have to be defined first and then this data has to be used while defining the spring as shown in the image above. Everything could be directly done from MCT command shell, just there is a sequence to the definition.

DataImage90.png

Files
	DataImage90.png 47 KB

How can I identify the functions which are used in multilinear spring in MCT Command shell?

Contents