Vensim software work required for 3 students 3 copies

Dr. Daniel Xing Email: [email protected]

Operations Modelling and Simulation

Lecture 2

EBUS-504

Operations Modelling and Simulation

Lab1

University of Liverpool Management School, UK

TA: Mr. Lais Wehbi Email: [email protected]

Continue your project development Now, Company ABC puts all the three side panels (I-type, II-type, III-type) under production. Each panel is firstly heated with combining different raw materials with a mould in an oven and then after all the panels are cooled down and split, the mould will be returned for cleaning and the panels need to go through different further production steps with respect to their types. The production details for each panel are as follows:

Type I-type II-type III-type

Raw materials P1-P3-P2 P2-P3-P2 P1-P4

Oven 3 mins setup + 15 mins production 5 mins setup + 20 mins production

3 mins setup + 25 mins production

Conveyor needed? No Yes (Oven to Cooling) Yes (Oven to Cooling)

Cooling 20 mins 30 mins 30 mins

Split (1 mins setup after 10 operations)

2 mins (auto) 2 mins (auto) 2 mins (auto)

Mould cleaning 5 mins (auto) 7 mins (auto) 6 mins (auto)

After split Trim (10 mins manual) – Paint (15 mins manual) – Package (3 mins auto and batch size is 3-5. Can be packed with II-type)

Trim (10 mins manual) – Polish (5 mins auto) – Paint (10 mins manual) – Package (3 mins auto and batch size is 3-5. Can be packed with I-type)

Trim (15 mins manual) –Paint (8 mins manual) – Polish (3 mins auto) – Wax (2 mins auto) - Package (1 mins auto and lot size is 2. Cannot be packed with other types)

Continue your project development The shopfloor currently has 3 ovens, 5 employees, 10 moulds, 2 conveyor (20 part length and it takes 4 mins to move a panel from one side to another), 3 split stations, 2 mould cleaning stations, 2 trim stations, 1 paint station, 1 polish, 1 wax and 2 package stations.

Procurement details for raw materials are:

P1: first arrival is 0, inter arrival is 20 mins, lot size is 2

P2: first arrival is 0, inter arrival is 15 mins, lot size is 4

P3: first arrival is 0, inter arrival is 15 mins, lot size is 2

P4: first arrival is 5, inter arrival is 25 mins, lot size is 5