Combine problems 5, 6, and 7 in one model.
Problems 5
Build a model of a two-station assembly line serving three types of parts. The sequence of part types is random. The part types are distributed as follows: part type 1, 30%; part type 2; 50%, and part 3, 20%. Inter-arrival time is a constant 5 minutes. The first station requires a setup task of 1.5 minutes duration whenever the current part type is different from the preceding one. The operation times are the same regardless of part type: station 1, 3 minutes and station 2, 4 minutes.
Problems 6
Embellish the model in problem 5 for the case where there are two stations that perform the second operation. The part goes to the station with the fewer number of waiting parts.
Problems 7
Embellish the model in problem 5 for the case where a robot loads and unloads the second station. Loading and unloading each take 15 seconds.