#TM-8 Classification and modeling for in-plant milk-run distribution systems

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#TM-8 Classification and modeling for in-plant milk-run distribution systems


ENGLISH

Decision variables router:

 Route “r” is chosen or not chosen (1 or 0)
Xir: Stock point “i” is assigned or not assigned to the route “r” (1 or 0)
Dir: One cycle demand quantity of the stock point “i” that is assigned to the route “r”
Lir: One cycle loading-unloading time of the stock point “i” that is assigned to the route “r”
Yar: The 0 or 1 binary variable determining the route of the stock area “a”
vehcycler: The total cycle time of the route/vehicle “r” (Including fixed trip time of the vehicle and total loading– unloading time)

Sets

A: The set of stock areas in the material storage and assembly station (a,b)
 B: The set of stock points related with each other (pulling or pushing) (i,j)
C: The stock areas in the same cell (a,b)
 Nr: The set of stock points that can be assigned to the route “r”
 Na: The set of stock points in the stock area “a”

Parameters

VTr: The fixed trip time of the route/vehicle “r” (only the trip time not including loading-unloading times)
seqsri: The 0 or 1 integer value showing the assignment orders “s” of the possible assignable stock points “i” to the route “r”
Cr: The transportation cost of one cycle of the route “r” signi: The “−1” or “1” values depending on the stock point “i”s type (“supply” or “demand”)
 vol(a): The volume of the stock area “a”
vehiclecost: The daily fixed cost (capital recovery) of the vehicle/route “r”.
maxvehicle: Maximum number of vehicles that can be used in the system
tfixed: The determined time period di: The output and input ratio (quantity/time) of the stock point “i”.
 li: The loading–unloading time of the stock point “i”. cap: The capacity of the vehicle
vi: The volume of the stock point “i”
M: A big number

INDONESIA

Router variabel keputusan:

Rute "r" dipilih atau tidak dipilih (1 atau 0)
Xir: Stok titik "i" ditugaskan atau tidak ditugaskan ke rute "r" (1 atau 0)
Dir: Satu kuantitas permintaan siklus titik stok "i" yang ditugaskan ke rute "r"
Lir: Waktu bongkar muat satu siklus dari titik stok "i" yang ditetapkan untuk rute "r"
Yar: Variabel biner 0 atau 1 menentukan rute area stok “a”
vehcycler: Total waktu siklus rute / kendaraan "r" (Termasuk waktu perjalanan tetap kendaraan dan total waktu bongkar - waktu bongkar)

Set

A: Himpunan area stok di penyimpanan material dan stasiun perakitan (a, b)
B: Himpunan poin stok terkait satu sama lain (menarik atau mendorong) (i, j)
C: Area stok dalam sel yang sama (a, b)
Nr: Himpunan titik stok yang dapat ditetapkan untuk rute "r"
Na: Himpunan titik stok di area stok “a”


Parameter

VTr: Waktu perjalanan tetap dari rute / kendaraan "r" (hanya waktu perjalanan tidak termasuk waktu bongkar-muat)
seqsri: Nilai integer 0 atau 1 yang menunjukkan perintah penugasan “s” dari kemungkinan titik stok yang dapat ditugaskan “i” ke rute “r”
Cr: Biaya transportasi satu siklus rute "r" signi: Nilai "−1" atau "1" tergantung pada stock point tipe "i" ("pasokan" atau "permintaan")
vol (a): Volume area stok “a”
vehiclecost: Biaya tetap harian (pengembalian modal) kendaraan / rute “r”.
maxvehicle: Jumlah maksimum kendaraan yang dapat digunakan dalam sistem
tfixed: Periode waktu yang ditentukan di: Rasio output dan input (jumlah / waktu) dari titik stok "i".
  li: Waktu bongkar-muat titik stok “i”. tutup: Kapasitas kendaraan
vi: Volume titik stok “i”
G: Sejumlah besar

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