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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,
1 _! h4 A4 C* M2 T  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.
8 X& q7 r$ U* B  Z, z% Q  Loads are processed by each operator for the following time:# N3 U) S( ]$ B: M# {
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins., R5 c# w4 [# V$ k
  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.3 o6 [6 N. y# F3 N' q; y
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.( C! r% [7 r) {; D
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:, o, @7 \/ q% G0 n0 I8 z
After running the model for 10,000 days, what was the average number of loads in each process?) \: w- L+ i- Z
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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
! B+ _" P& O0 Q' F' kmove into Q_wait /*Capacity is infinte*/
: [+ D  m$ {% I, [) @4 U. lmove into Q_process /*Single capacity*/  l' k( K# S8 x6 n

1 B& t9 V0 p1 r4 `& Buse R_A for n 60,10 min /*Resource A*/
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9 P$ z2 D: x- S) y1 rsend to P_B
$ P, g  b5 C( ^& p' x# X3 _end; u+ w$ P7 A* u) z) G+ O4 h

& z# H9 m7 S  g$ V2 s1 lP_B and P_C is similar
1 D1 e/ I" v" e/ R/ G, }3 ntriangular 30,60,90 min* b. o  X" s( A8 P
u 60,30 min- ?, n& k8 `+ I3 g

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in P_C, you need to send to die.: T$ ]0 M. ]0 X; S; A* O( l

$ f( ^2 [8 p; e& Y+ h. |Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.. w2 g. M; b, S6 s1 d% Y& k8 y7 l; F

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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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