 analysi redund structur high-speed digit comput analysi redund structur high-speed digit comput larg-scale redund structur analys current feasibl modern high-speed digit comput capabl opportun meet urgent solv complex problem hopelessli capac hand desk comput difficulti shift tediou hand comput problem adequ repres structur model peculiar irregular geometr configur wide scope problem type handl gener program approach matrix formul organ input data handl data transfer larg complex subroutin includ format equilibrium continu condit final load deflect simultan treatment thermal expans plastic includ minimum-size redund system emphas start philosophi cut member provid static determin structur improv numer accuraci problem size capac gain comput exampl discuss rang simpl plane-load diffus problem pressur fuselag cutout complex wing-fuselag-shell intersect-type problem 