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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,
5 x* l) ^* P" G Q2 |+ }5 o2 W 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.
- L: D8 H8 g( _+ }1 U5 o' h( x Loads are processed by each operator for the following time:; a+ z9 I: p2 u; r( C+ C
Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.$ ^: @9 w* j, {# `, o3 \; P
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.
8 z& G, d! C n5 T! N Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
. d0 W( E& O ^3 C3 NSend 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.; k& u Q) t0 x1 J/ [+ \; U$ g
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问题:$ W. n: w4 x3 \% a9 K
After running the model for 10,000 days, what was the average number of loads in each process?4 D* [5 p0 U/ I- E. }2 l! ~
! H6 t) h8 B: r; A* q* Z不胜感激! |
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