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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,
- I! ]- o% ^; n* k6 u7 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.
$ o/ X$ a, N  b, f  Loads are processed by each operator for the following time:
9 ^* \# \& [" L) ^  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.& p& e: i3 `3 i# _
  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.
- w  K! \( v: _& B" h  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.0 D$ {4 c# B# d4 W6 j6 b) 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.. o' m  v2 G/ c9 B6 z

% A2 e2 o, [- U% k. l$ I% \) K问题:" `6 K0 Z3 j. X  Y3 C
After running the model for 10,000 days, what was the average number of loads in each process?
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$ [1 r$ I3 O3 n不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving2 [. l$ L4 b. `* h) l  ?. O
move into Q_wait /*Capacity is infinte*/
4 e6 T+ \" N! Z- i1 A" |" v- xmove into Q_process /*Single capacity*/
9 Y, E! g3 q3 |' A+ b
& S* e+ D% y, w* v# yuse R_A for n 60,10 min /*Resource A*/: }, G6 A* U, w) B2 n
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send to P_B
, v% F9 n* @, N: \4 D- \  C  t3 Rend
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P_B and P_C is similar
  O  }0 k0 y/ f. striangular 30,60,90 min9 E* c: B+ _4 h( w2 @
u 60,30 min
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  ~. d( K4 A; M6 {* e3 c
in P_C, you need to send to die.
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: h* {3 C  O- K3 N5 zThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.: w, o+ Q% d" ^$ d3 ^
7 d) W: ]: a7 K- t2 Z4 v+ h

2 k# d, Y% j- i# _; Z$ n0 i( A1 [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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