Liftrix

• PhysicsThe lift as statics: angle steps, pick and tail loadsHow the vessel is stepped from horizontal to vertical, how the pick and tail loads follow from moments about the tail pin, and where the shell bends at the first pick.Readarrow_forward
• MethodThe lug plate checks: two routes that stand apartMoss / AISC factors the load and compares with allowable stresses; ASME BTH-1-2023 keeps the load at W_E and factors the strength by N_d. The tool never mixes them.Readarrow_forward
• MethodShackle fit, pin and the pipe trunnionWhat the shackle check is (the maker's rating plus four geometry fits), and how a pipe trunnion is checked in bending, shear, pull and its root weld.Readarrow_forward
• MethodTail end: twin lugs, the tail beam and the skirt base ringHow two offset tailing lugs share the tail load and are resolved into their own planes, the Moss 10-5 tail beam check, and the base ring check with Table 10-7 in closed form.Readarrow_forward
• LimitsThe FE model of the lug on the shell: what it holds and what it leaves outThe lug job builds a shell-element model of the lug, pad and a band of shell, loaded by the governing lift step. This note lists what is in it, how it is supported, and what is deliberately absent.Readarrow_forward

Each note lists the source files it was read from. The finite-element modules are in early access and under independent verification before design use.