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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,
# `) j0 S: O+ ^& e# h  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.5 @1 S; ~7 N8 W* k$ b
  Loads are processed by each operator for the following time:4 s5 K0 g# q- c; m2 Z' I/ w. W
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.* p0 {9 J) n# U+ U4 Z; U# 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 O6 ^, K: y* s/ G3 @% ^  g  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.( b& O6 Q; r  T+ j3 s3 _
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:" H; |3 g; L* R9 F- f
After running the model for 10,000 days, what was the average number of loads in each process?" k+ M. m" \  q
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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 arriving$ [' N$ A+ z. a
move into Q_wait /*Capacity is infinte*/$ v( k' L" e# d( o
move into Q_process /*Single capacity*/" ~9 V* K5 N5 z( ]$ e9 B. U+ Y
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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
1 {; T4 F/ G* Y  Y2 o6 }% striangular 30,60,90 min
2 ^# Z- R5 @  S' }4 D6 z3 S) ?u 60,30 min" E6 M7 U1 i5 u  x# o+ `. a
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6 E. j. a$ m: g& ~& t  _3 @* ]in P_C, you need to send to die.2 a) y9 r2 g& u( L

9 M+ h- z9 Q+ Z5 M5 |' R# i2 gThen 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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