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刚刚开始学auto mod,这道题目搞不明白,希望大家看看 题目是这样的,
; q1 S. T; Z5 B! O/ G Create a new model containing three independent processes, each with one operator. In each process, loads first move into an infinite capacity waiting queue, then into a single-capacity processing queue.
+ q9 ^1 ]* z- F9 F$ m Loads are processed by each operator for the following time:
" Q* q4 s/ y" ?$ Q- L' ] ~: K% W Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins., N/ p: x! A% y- Z _
Worker_B does the job according to a triangular distribution with a min of 30 mins, most likely value of 60 mins, and a max of 90 mins.- D. }4 g$ {* P8 P2 ^
Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
4 A- d" L6 r# F& B" f# r( e# p8 ISend loads to each pocess at the same rate (an exponentially distributed inter-arrival time with a mean of 68 mins) to understand the difference in the processing times of the three workers.7 q: I6 c) _0 H5 h
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问题:5 Y5 C, y' B3 P% L0 d. \. h( M
After running the model for 10,000 days, what was the average number of loads in each process?
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不胜感激! |
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