Hello Khairil,

what does the solver writes? Any errors/warnings? Please try to change variable declaration as follows:

Thread *t;

real accl;

real dv;

int i;

real x_cg[3];

real force[3];

real moment[3];

Domain *d = Get_Domain(1);

real mass = 0.2;

real wn = 12.0;

real k = mass * wn*wn;

real c = 2 * mass*wn*0.00;

I'm using another version of the solver and compiler, but I can compile only if variable are declared in a special order: 1) just declaration and 2) only then using.

All the best,

Georgy

Use this forum cfd.online it can help you. Good luck.

Hi Khairil,

What type of error did you get during compiling? I checked your code and compiled it in one sample, it was compiled successfully without any errors on my computer; the screenshot is attached. Maybe you need to update your compiler. 

Regards,

Siamak 

Hi Khairil,

You should tell us which error you get during compilation. 

hi guys I got error while I am compiling the udf any help

Error: The UDF library you are trying to load (libudf) is not compiled for 3d on the current platform (win64).\n\nThe system cannot find the file specified.

\n\nU:\Second_Year\Months\April\udf2\libudf\win64\3d\libudf.dll

Error Object: #f

any help please