gear3.gms:
References:
- GAMS Development, GAMS Model Library.
- GAMS Development, Reformulation of Models from MacMINLP.
- Deb, K, and Goyal, M, Optimizing Engineering Designs Using a Combined Genetic Search. In Back, T, Ed, Proceedings of the Seventh International Conference on Genetic Algorithms. 1997, pp. 521-528.
- Original source: GAMS model gear.gms from Gams Model Library and AMPL model geartrain.mod from MacMINLP
Point:
p1
Best known point (p1): Solution value 0.00 (global optimum, BARON certificate)
<![CDATA[
$offlisting
* MINLP written by GAMS Convert at 04/17/01 16:38:54
*
* Equation counts
* Total E G L N X
* 5 5 0 0 0 0
*
* Variable counts
* x b i s1s s2s sc si
* Total cont binary integer sos1 sos2 scont sint
* 9 5 0 4 0 0 0 0
* FX 0 0 0 0 0 0 0 0
*
* Nonzero counts
* Total const NL DLL
* 13 9 4 0
*
* Solve m using MINLP minimizing objvar;
Variables objvar,x2,x3,x4,x5,i6,i7,i8,i9;
Integer Variables i6,i7,i8,i9;
Equations e1,e2,e3,e4,e5;
e1.. - sqr(0.14427932477276 - x2*x3/(x4*x5)) + objvar =E= 0;
e2.. x2 - i6 =E= 0;
e3.. x3 - i7 =E= 0;
e4.. x4 - i8 =E= 0;
e5.. x5 - i9 =E= 0;
* set non default bounds
x2.lo = 12; x2.up = 60;
x3.lo = 12; x3.up = 60;
x4.lo = 12; x4.up = 60;
x5.lo = 12; x5.up = 60;
i6.lo = 12; i6.up = 60;
i7.lo = 12; i7.up = 60;
i8.lo = 12; i8.up = 60;
i9.lo = 12; i9.up = 60;
$if set nostart $goto modeldef
* set non default levels
* set non default marginals
$label modeldef
Model m / all /;
m.limrow=0; m.limcol=0;
$if NOT '%gams.u1%' == '' $include '%gams.u1%'
$if not set MINLP $set MINLP MINLP
Solve m using %MINLP% minimizing objvar;
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