** ** acoustuserelemdyn2.inp ** Result should be the same as in acoustuserelemdyn.inp. ** *node, nset=nall 1, 0., 0., 1. 2, 1., 0., 1. 3, 1., 0., 0. 4, 0., 0., 0. 5, 0., 1., 1. 6, 1., 1., 1. 7, 1., 1., 0. 8, 0., 1., 0. *element,type=ac3d8,elset=water 1, 1,2,3,4,5,6,7,8 *Solid Section, elset=water, material=water 1., *material, name=water *acoustic medium 1.e4 *density 1., ** *step,nlgeom=no,ampl=ramp,extrapolation=no *dynamic,alpha=0. 0.001,0.01, 1.e-5,0.001 *boundary 8, 8,8, 0.03 *output,history,variable=preselect *output,field,var=preselect *node output por *node print por *end step