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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,
8 ], }; d1 n8 f' 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.
1 `0 p0 M$ J- D  Loads are processed by each operator for the following time:: n" p* ~# s+ e, v/ h8 {# A
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
" n, z1 R* Z5 E% h  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 H3 a9 a. c# G- u8 c  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.' M9 ?, ^7 s$ T" v
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.: U( x  j7 K, I. B9 d- U
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问题:) Z) j2 j; T. k% {5 e$ H/ m
After running the model for 10,000 days, what was the average number of loads in each process?, {) d5 C4 k) N" P

8 V# z9 Q4 g, l0 ]3 e3 k; o不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving4 U1 a( t; ~1 ^7 _1 h4 `3 }3 z
move into Q_wait /*Capacity is infinte*/
1 X2 k. E! m0 e9 G" g0 _  f; Dmove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
: x+ N! t" M2 w# z6 e3 Rend0 a- L+ D) R; L* j4 k+ O& n
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P_B and P_C is similar
( ?4 o7 i# `) A; T( }triangular 30,60,90 min- e% x: m/ Q3 z. n5 c
u 60,30 min: g- y0 M, q  z$ Y; g7 X! ?
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5 T" c& z- `: k0 B, B& s7 H, Yin P_C, you need to send to die.
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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.% h2 A6 `* X0 C$ U
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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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