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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,) d% h" j; I) }3 M+ u- c* R8 y+ V$ V
  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.
# ^6 `# I* l0 r8 D$ N  Loads are processed by each operator for the following time:9 {9 D6 R! \! M1 }
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
7 W% v" P1 j  I! e. X, P  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 f4 U3 K' C1 N4 r
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
# {9 h# q# z0 {3 w0 }3 S* rSend 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." K0 T) w% Y' p& r- U# _1 J
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问题:
( u! b( V) a3 b# pAfter 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 arriving
8 s# U, l5 |3 W  G7 _& fmove into Q_wait /*Capacity is infinte*/
0 ?3 D$ [1 ]2 e3 v) \3 v+ {/ `# 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- V6 z9 }" w, I+ ?! G* ^
end' h' u* N4 N# }2 p
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P_B and P_C is similar
4 y: @" Z% ?; Z% ]* c# z1 Y8 y* _triangular 30,60,90 min& x; M) c" a5 n3 \/ J# I" h
u 60,30 min" c. V1 y0 i" J% A3 _' e2 V8 n1 s
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& i: ^- o% {3 B, K/ t9 tin P_C, you need to send to die.9 k6 P) r& J" T: E8 S

' {& S( ?: L' T: V5 A" |  L+ aThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.3 d9 P  G4 i6 p+ [6 w8 v. L% D6 `

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% N# J! m+ C( f: t: ^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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