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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,
) x6 ?6 V3 |9 D7 C  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.
* Z. A$ V% X$ ^& B5 C  Loads are processed by each operator for the following time:& r/ r- O1 a; f+ h9 g, r
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
0 O% b% f3 c; v3 j9 x  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.. _7 G2 d' \  A8 e
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.+ {# I% k. e& l
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:
& n- N* \/ u" Q: VAfter running the model for 10,000 days, what was the average number of loads in each process?* W5 b2 H% L' W1 }; h

9 G5 i* l4 g  ]不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving' [/ c6 z* f6 e2 m+ ^8 H0 N
move into Q_wait /*Capacity is infinte*/
5 g' ^: k! C. h7 c2 |4 Wmove into Q_process /*Single capacity*/
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! g; d: n. e9 M4 y0 p1 wuse R_A for n 60,10 min /*Resource A*/
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/ U2 h) z* ?- j# A& psend to P_B
' m- ?$ j  |. a. Hend
: X! \' {$ {5 s9 k; j( a5 b
+ Y& R6 }' J* n2 \P_B and P_C is similar
8 s3 M4 w* N3 |triangular 30,60,90 min- X8 m& E1 N- V- n  x6 _1 r2 O
u 60,30 min& Q2 O0 k& t0 R' c/ s7 g7 o& D, W) k' }
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* z5 H5 d- O1 x7 Q0 E' N! k9 Tin P_C, you need to send to die.
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% O/ b& Q9 {/ r& r! E: fThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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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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