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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,
+ t% C$ e* Z) A. s 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.
) S) }1 ?" @- o% Y0 G2 E Loads are processed by each operator for the following time:
; c8 P# A% n C Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.4 G; C: _' m4 J6 z9 Y$ s
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.
. C+ e4 c+ K* ~: Z9 c; K Worker_C does the job in a uniformly distributed time between 30 and 90 mins.+ F: R/ {3 a5 _7 s/ E' f' `/ n( B
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. d) Q+ l, h' i+ M: E
) k) _/ \' B7 J( x, N/ y问题:
; N! Z) T9 x$ B4 } I+ M, T1 T( {After running the model for 10,000 days, what was the average number of loads in each process?
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3 U; C( K' u4 N3 B不胜感激! |
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