Unit 5- general principles, simulation

softwareproblems

Example 1• In a single checkout counter of a grocery store list all the components

and the simulation table for the checkout counter is given below. Prepare the simulation table until the clock reaches 21 min.

IAT -- 8 6 1 8

ST 4 1 4 3 2

EXAMPLE 2• Prepare the simulation table for a single channel queue using event

scheduling algorithm until the clock reaches time 15. using the inter arrival time and service time given below. The stopping event will be at time 30

IAT 1 5 6 3 8

ST 3 5 4 1 5

Dump-truck problem

• 6 dump trucks are used to haul coal from the entrance of a small mine to the rail road. Each truck is loaded by one of the 2 loaders after the loading the truck immediately moves to the scale, to be weighed as soon as possible,• Both the loaders and the scale have FCFS weighing line for the trucks.

Travel time from a loader to scale is considered neglible. After being weighed a truck begins a travel time and then afterward returns to the loader queue.. Before joining the loader queue the truck is unloaded.• The distributions of loading time, weighing time and travel time are

given in the following tables

Loading time Probability

5 0.30

10 0.50

15 0.20

Weighing time Probability

12 0.70

16 0.30

travel time Probability

40 0.40

60 0.30

80 0.20

100 0.10

• Use the following random digits for simulating the following problems• Loading time : 7, 2, 3, 8, 9, 4, 6• Weighing time : 4, 6, 5, 9, 7, 0• Travel time : 7, 0, 3,2, 8• Estimate the loader time and scale utilizations