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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,
3 V5 S; P1 X. y4 c7 Q, f! Q  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.
7 v, ^2 R+ d9 a% N7 @3 s- }  Loads are processed by each operator for the following time:  O. g9 y' p- z; _
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.7 c& H6 W8 H$ ^/ t% U6 p' `  v
  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 J& C1 Q0 W7 T7 p" j" |
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
0 ?6 _1 o# U0 ]3 i: \5 vSend 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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" \8 X7 P6 C; F" m, D问题:
9 U5 F1 D6 O3 w1 ?7 {0 CAfter running the model for 10,000 days, what was the average number of loads in each process?2 P' ^1 N) F- b2 c5 k- r1 p7 k
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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+ L) e; s9 F2 R, U
move into Q_wait /*Capacity is infinte*/
$ w: K/ P  r$ M2 rmove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/( n( V/ M* z8 W7 Z/ g' Q

7 h/ k$ Z; Z9 e/ u8 V7 I6 Zsend to P_B6 m) a. j9 w4 i6 i6 l" ]
end0 R  F* E+ N5 G6 m
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P_B and P_C is similar7 D  n( L+ y" c  a0 a' _; J2 }) R0 `
triangular 30,60,90 min* D+ h) v; c- T/ h% H* T* z; R
u 60,30 min
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- l# Z: W5 _8 f& B! d. Gin P_C, you need to send to die.
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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.
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5 ]" g5 z8 H& w' t( n# G/ G, E  q  @& e# U9 `
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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