Arba Minch University
Department of Civil Engineering
MSc. in Construction Technology and Management
SYSTEMS ANALYSIS FOR
CONSTRUCTION II
Assignement: Minimization of NLP by GAMS
ENGIDA GIZACHEW PRAMIT/130/14
Submited to Instructor : Adane Abebe ( Dr.-Ing )
A.M.U
Feb.2023 G.C
Arba Minch, Ethiopia
nonnegative variables
x1,x2;
variable z;
equations min,const1,const2,const3,const4,const5,const6;
min..
9.82*x1*x2+2*x1=e=z;
const1..
x1*x2=g=1.593;
const2..
x2*power(x1,3)+x1*power(x2,3)=g=47.3;
const3..
-x1+2=l=0;
const4..
x1-14=l=0;
const5..
-x2+0.2=l=0;
const6..
x2-0.8=l=0;
model
tube
/all/;
solve
tube minimizing z using NLP;
display
z.l,x1.l,x2.l;
The basic function for calculating soil resistance shows that there are three main values that are
important: (a) soil pressure,
determine the theoretical horse power required to compress 100 cft