▁and ▁market ed ▁a ▁series ▁of ▁D OS ▁and ▁Unix ▁based ▁F E A ▁programs , ▁most ▁not ably ▁its ▁STR AND 6 ▁program . ▁In ▁ 1 9 9 6 ▁the ▁company ▁comm enced ▁work ▁on ▁a ▁completely ▁new ▁software ▁development ▁specifically ▁for ▁the ▁Windows ▁platform . ▁This ▁product ▁was ▁first ▁released ▁in ▁ 2 0 0 0 ▁and ▁was ▁named ▁Str and 7 . ▁ ▁In ▁ 2 0 0 5 ▁the ▁company ▁also ▁changed ▁its ▁name ▁to ▁Str and 7 ▁to ▁better ▁reflect ▁its ▁primary ▁focus . ▁ ▁Application ▁▁ ▁Some ▁high - profile ▁applications ▁of ▁Str and 7 ▁include ▁the ▁optim isation ▁of ▁the ▁" W ater ▁C ube " ▁Be ij ing ▁National ▁Aqu at ics ▁Center ▁for ▁the ▁ 2 0 0 8 ▁Be ij ing ▁Olympics , ▁the ▁" Runner " ▁sculpt ure ▁that ▁was ▁placed ▁on ▁top ▁of ▁Sydney ▁Tower ▁during ▁the ▁ 2 0 0 0 ▁Sydney ▁Olympics ▁and ▁the ▁Terminal ▁ 2 E ▁roof , ▁Charles ▁de ▁Ga ulle ▁Airport . ▁ ▁Analysis ▁Cap abilities ▁▁ ▁Str and 7 ▁is ▁most ▁commonly ▁used ▁for ▁the ▁construction ▁and ▁mechanical ▁engineering ▁se ctors , ▁but ▁also ▁has ▁seen ▁use ▁in ▁other ▁areas ▁of ▁engineering ▁including ▁aer onaut ical , ▁marine ▁and ▁min ing . ▁ ▁Str and 7 ▁includes ▁the ▁following ▁sol vers : ▁ ▁Linear ▁static ▁▁ ▁Natural ▁frequency ▁▁ ▁Buck ling ▁▁ ▁Non linear ▁static ▁▁ ▁Linear ▁and ▁non linear ▁trans ient ▁dynamic ▁▁ ▁Spect ral ▁and ▁harm onic ▁response ▁▁ ▁Linear ▁and