LS-DYNA UNIVERSE

Cal­cu­la­tions in LS-DY­NA are al­ways com­put­ed in a Carte­sian co­or­di­nate sys­tem. In cas­es where a cylin­dri­cal mod­el set­up is re­quired, a num­ber of lo­cal Carte­sian co­or­di­nate sys­tems may be de­fined to ef­fec­tive­ly mim­ic a cylin­dri­cal co­or­di­nate sys­tem. LS-Pre­Post can fa­cil­i­tate this process as well as dis­play most re­sults in an al­ter­na­tive lo­cal Carte­sian, cylin­dri­cal, or spher­i­cal co­or­di­nate sys­tem. Input in a cylindrical coordinate system Cer­tain LS-Pre­Post En­ti­ty Cre­ation tools have a Cylin­dri­cal CS op­tion to au­to­mat­i­cal­ly de­fine and ref­er­ence a set of lo­cal Carte­sian co­or­di­nate sys­tems in cas­es where a cylin­dri­cal co­or­di­nate sys­tem is re­quired. *BOUND­ARY_­SPC Mod­el → CreEnt → Bound­ary → Spc → Cre. Se­lect the ra­dio but­ton Set or Node (see Set vs. Node/­Point se­lec­tion note be­low). Se­lect the check box named Cylin­dri­cal CS. Se­lect (and cre­ate if nec­es­sary) a CID and a di­rec­tion in that C...