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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,
) ]/ T" h$ P) \  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.
- N8 I. m$ M( z9 T( U& k  Loads are processed by each operator for the following time:! q1 K) L& M! ]0 z
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
0 ^8 ~+ ?- C" {2 d9 q  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.
2 g) t  e; R0 A- V3 \' l  n  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.2 K+ R# N. S, I: F$ t; {7 C( }. I
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.- `$ p  N; p$ f8 R

; u1 f5 `, F( w* u; ^- |! Y问题:8 x. p: K$ j- F" k0 d6 d) z
After running the model for 10,000 days, what was the average number of loads in each process?
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不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving3 U' ^/ m) m' {; h" K" F. x* P4 y& ]% p
move into Q_wait /*Capacity is infinte*/
* ~4 S6 N) P/ w3 `. n* nmove into Q_process /*Single capacity*/
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$ L; J0 p6 {* C4 C1 \use R_A for n 60,10 min /*Resource A*/
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send to P_B
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P_B and P_C is similar) r' c! \) Q6 W
triangular 30,60,90 min1 }( x, H! l2 O3 `7 \3 Z* Q: j$ m6 m/ A
u 60,30 min
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5 U5 k3 K: U3 Uin P_C, you need to send to die.6 p% @. p3 B1 S% b& C$ C

8 J4 V9 {& H" I& JThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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4 ?  `# _% E! H3 ^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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