ansys优化程序运行错误呢，求帮助

R=1
K=1
S=2*3.14*R*K+2*3.14*R*R
V=10000/(3.14*R*R*K)
/OPT
opvar,R,DV,1,10,1e-2
opvar,K,DV,1,10,1e-2
opvar,S,SV,,100,1e-2
opvar,V,obj,,,1e-2
opkeep,on
optype,subp
opsave,optvolu,opt0
opexe