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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,) v) U+ `7 a: O# Q: X( 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.
, s8 I2 C8 i% X7 }, `% X  Loads are processed by each operator for the following time:) J3 m* |: P5 u( q2 C$ [' K
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins., W. [& `. N% ?7 f! N! F' d  V& Q
  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.6 N9 h1 g6 Z/ b6 A* m% }  Q6 }/ w
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins., b6 T# N' H. J# l: a
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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" b, X; B# {# }. J3 p问题:# ~* W$ T! V  U( ^$ I9 S: _
After running the model for 10,000 days, what was the average number of loads in each process?7 k8 z$ e/ i( c3 `$ \
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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
$ P' ?- @/ K0 w5 v' smove into Q_wait /*Capacity is infinte*/
5 z8 I, I! ^0 T. wmove into Q_process /*Single capacity*/4 M' P8 y3 {/ K1 R, N7 i$ _
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use R_A for n 60,10 min /*Resource A*/
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: I% o: m) I7 c0 _send to P_B2 e% y0 A2 \2 S3 T  l  w! ~; g# S& @: D
end3 W6 E) J; R7 n' l5 H' ]0 m8 ^
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P_B and P_C is similar
; [, s  [( k* _! K/ Vtriangular 30,60,90 min1 [' V2 a/ ^8 l5 I# Y
u 60,30 min! T) y5 F, Z  i  `! i& w

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1 J) V2 L$ ?/ j' z0 y* P& {in P_C, you need to send to die.% @% N% X5 _4 t9 t2 ?1 X/ p. G; i1 O

8 b) y# N' p- c8 OThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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- X- {3 D* {0 f  ?; h' q0 R+ ]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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