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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,
' ?- }. y- j9 ]) s" ?, |' B 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.* e0 g! w6 i3 F1 R# h# f8 U
Loads are processed by each operator for the following time:8 L* Y" i) k. w3 R& l# ]6 r
Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
4 ]7 H9 g# X5 A9 V/ X1 K% S: Q 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.
$ i% S: D& u; G4 ?+ U$ S: d$ F Worker_C does the job in a uniformly distributed time between 30 and 90 mins.- F: M7 Z( B( K) d$ o ^
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.
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; x/ D, m, z% c2 r$ _问题:
. z s% j0 \& _! s& w& ~5 h7 E$ QAfter running the model for 10,000 days, what was the average number of loads in each process?
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+ H0 Y* f4 B# K* }# K, X+ [不胜感激! |
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