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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,* E( e+ \$ Y; i( B
  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.
+ o2 D2 l+ _0 j3 p: S, B  Loads are processed by each operator for the following time:# x" M+ _3 I+ T0 S
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.1 P. K- q* f7 r! K5 n: ^
  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.& Z% i% }# m& C' L
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.- x! ~$ q' z2 m) u8 Z
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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3 m2 V8 Q! R/ p0 M问题:
* _9 I1 E8 P, R$ C" T; PAfter running the model for 10,000 days, what was the average number of loads in each process?: o% G8 H! A2 M( L6 j. D2 ]& T9 Z

" E  k2 U, P$ u6 [不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
3 ?. q' X% p- p& c1 I, k! bmove into Q_wait /*Capacity is infinte*/# m) T( A# u) e9 _  s2 L8 v0 G2 p/ ~
move into Q_process /*Single capacity*/% I, }9 b5 _# ]) t: W) C" d
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use R_A for n 60,10 min /*Resource A*/1 V- ]- j& z0 l- d% d! X
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send to P_B5 @6 K9 W; \' I3 w
end
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P_B and P_C is similar7 o% ?6 G( T( H- G
triangular 30,60,90 min
' p2 f; E5 S$ ^. X' V$ cu 60,30 min0 y( f8 R6 v1 `% q: d+ {
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4 |6 L$ w0 S( N" W8 \9 c- yin P_C, you need to send to die.  l  q7 q. |) A
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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.) G, {0 `# \1 t! E6 O2 V

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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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