- Pmvide a description d - PDF document

The allocation zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA 18* International Symposium on Milltary Operational Research d tanker alrcran to meet a slated requirement E w n Ellen. FUM. Spam BLE SVSTEMS W m n for zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA bid team zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA Background me FUTURE STRATEGIC TANKER AIRCRAFT -WO* mmpreted (FSTA) I .BA€ SYSTEMS part d Lld (wnh b i n & Tanker (LTranspon SBMCB CO Sen0 and Spactrum Capitel) - Pmvide a description d zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA U x S r E E m What is this presentation about? * Descllbe zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA me tanWnQ pmblem. * Expkln dinerent from omem. why this problem U that were mnsldered -Examine mm0 technlques to solve problem. me 801Ulion memodologl. .Pmvlde e m " e of results.

wents (20 days zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA -Ume zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA -day zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA What do we know? d operations) -Refuelling window (six 4 hour ktewds each day) at Low Level Entry Point (LLEP)) -0quence (order maintained -locaUO" (0.0. towll"0) - DuraUon -fuel dellvemd [out and back) 01 each I@? d climb, tmm TOC to AAR towllne. (e.g. Ume to b p Imm towline to UEP. etc.) The situation U -Crew 8chedUling lor m a s zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA I - R e l e m m Why is this problem bw mu+Jnp zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA different? tound m 'standard problems' -MulUple depot VBhlcIe scheduling problems of Pam mnstmlned -Length problems t m l t pmblem +emplane end aircrew scheduling pmblem and c&eduling S c h d -NO methDdolDOytound In lltemture Sequencing (bus muting) -Time WIMOWS -Dlmmlshing reulurc~ (luel) -Need to find our own SOiuuon methdology

1 zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA Altechnquea zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA I zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA Time Overall Sortie Sequencing Torvline changes WndOrn, Llnear J J x prcgmmmg I X Non-linear X pmgrammina I X J J x J I I 1 I 1 I I Slmulabon J J - bo required zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA *U88 zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA Simulation - stochastic *Randomly all~cate mtuellinp bme wlmin time Wlndw .Delemine haw many mtuelllnp alrcran muld Mnte Call0 Bppmach 10 repeat do we know lhal me answer Is m e best poa?llble? .Problem HOW - Simulation - deterministic .Algorimmic grouping of refuelling events Info sorties 01 soties lo -~lgorimmic alhxation tsnker lo move refuelling evenu -Problems adso when It become n m w r y

- zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA *Bails waa a ample zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA Umr enters zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA Interactive spreadsheet minimum number zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA sprsadshmt CBlwlator data ermr checking *Integrated .Automated cBIcuIaUon o l 01 dmran - lnteractlve spreadsheet - input I zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA , . I.. ..... .... " ' I I : I ; I .,.I ........ I I I., ...... - 1 : j : : : : : : l = y = F = ,....., - 1 - 1 I ...I 3.0. >a.. ..I

zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA Example zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA ;+*: zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA ...... zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA ....... zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA - improved i /...... 1 j ,... 1 I ~ zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA r" I + I ~ , , ""' s y = = ! r / ...... I.. ... ,... ,... , ...., ...... l . . , . . , ... .,, -......, I I Clearer display - Conclusions * Heunstic wpmach to Rnd number 01 aimran minimum *Uncertainty 01 global minimum. relies on experience .Time savmg. gmd amparlaon Mm hand Calcuiaflons