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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，
4 m6 r' Q! |% _ 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.
3 ?1 d: L) W' N Loads are processed by each operator for the following time:
/ L0 r6 p: S" o+ M& ]0 j. q Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
& j% p3 U, v- N, V/ b2 J9 f 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.
* w2 {# I6 H# r; C3 b- U Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
$ @+ E$ y% y; D& GSend 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., X- R9 d" r8 J4 W
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问题：
$ n+ b8 c5 j) ^2 b' f/ g0 hAfter running the model for 10,000 days, what was the average number of loads in each process?8 k* i" ~3 U! a/ t% t6 [$ |8 |
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不胜感激！ |
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发表于 2009-10-3 15:08:34
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