tp074.apm
Model tp074
! Source version 1
Parameters
a = 0.55
c3 = 3
l[1] = 0
l[2] = 0
l[3] = -a
l[4] = -a
u[1] = 1200
u[2] = 1200
u[3] = a
u[4] = a
End Parameters
Variables
x[1:4] = 0, >= l[1:4], <= u[1:4]
obj
End Variables
Equations
x[4] - x[3] + a >= 0
x[3] - x[4] + a >= 0
1000*sin((-1)*x[3] - 0.25) + &
1000*sin((-1)*x[4] - 0.25) + 894.8 - x[1] = 0
1000*sin(x[3] - 0.25) + &
1000*sin(x[3] - x[4] - 0.25) + 894.8 - x[2] = 0
1000*sin(x[4] - 0.25) + &
1000*sin(x[4] - x[3] - 0.25) + 1294.8 = 0
obj = 3*x[1] + 1.0e-6*x[1]^3 + 2*x[2] + 2.0e-6*x[2]^3/c3
! best known objective = 5126.498109595273
! begin of best known solution
! x[1] = 679.9453198512117
! x[2] = 1026.067132610465
! x[3] = 0.1188763644931019
! x[4] = -0.3962335532032103
! end of best known solution
End Equations
End Model
Stephan K.H. Seidl