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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,
7 n% \5 p0 P6 ^) A: P9 F7 j3 t 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.
8 R& M! J. E3 G7 @ Loads are processed by each operator for the following time:
6 d5 c! Z6 b, S7 I Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins., [ w4 k; a# j" I- r- _1 c
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.
& Z+ r0 ?; B( Z' n- o& s( H Worker_C does the job in a uniformly distributed time between 30 and 90 mins.& p0 U) t7 F# z9 r7 g. n
Send 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.; }( {& B4 W! q- u7 ]+ D$ ]
, W n9 e& ?2 ?/ t) P1 q' {问题:
- C% i# L. L9 r! dAfter 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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