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[求助] 本人初学auto mod,有一道题目希望大家赐教

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发表于 2009-10-3 15:08:34 | 显示全部楼层 |阅读模式
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 A- M- }; I, [  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.+ L7 h% B8 a+ h- t" P( \5 ?' _& f
  Loads are processed by each operator for the following time:
4 [5 k8 x1 ~- N9 E8 J  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.5 o  k1 h. l5 `, @; i
  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.6 _* W1 x. s3 w5 Z& m0 |
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.9 Y$ M, |, o% `- a! N* G
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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问题:. G$ o) B- Y% p
After running the model for 10,000 days, what was the average number of loads in each process?
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发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
/ Y  q- W% x8 q* Imove into Q_wait /*Capacity is infinte*/
  k: m, V2 J* Z1 e/ L5 T/ w$ Mmove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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& e6 d9 V# A6 hsend to P_B, l4 M% X/ B" u1 L
end& X# x0 T, D$ u2 h

: G8 P! g9 I9 _# tP_B and P_C is similar" ^8 I! n2 m" G1 O- |' R
triangular 30,60,90 min) O' c5 }0 ~  X- `: `. r# f
u 60,30 min
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+ W, _. V# W0 x, B% Ain P_C, you need to send to die.2 G6 M' y: B( _9 r* H& p  K2 l
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Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.# X9 v* J9 e% @  E) h% v0 ~; |

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Remember to turn off the animation before you run your model.

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 楼主| 发表于 2009-10-27 23:53:02 | 显示全部楼层
thanks...
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