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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,( g' H; j! w9 B9 b4 E
  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.2 \& B# D! V& [: t
  Loads are processed by each operator for the following time:
7 x+ b8 y1 ~& r0 e5 N  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
  G- C& I9 I" h3 g  D3 ^  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.
( j" B- Z/ _& _. O  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.& {- F3 j. O9 z/ E/ n1 m! b! z5 P
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.# Q# [- t" ?& X1 u
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问题:
1 k% M, o* k( i6 |  O: yAfter running the model for 10,000 days, what was the average number of loads in each process?
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2 m& }" v+ ~& u4 q) {( j不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving9 }0 U1 F' ?4 I5 }. b! {  z) h" a+ Z$ P
move into Q_wait /*Capacity is infinte*/
3 B% z) d9 N( S+ b) Rmove into Q_process /*Single capacity*/. B1 X) w+ [0 H$ O" o

7 v8 W9 h/ r; Tuse R_A for n 60,10 min /*Resource A*/
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send to P_B# ?6 d3 S7 }5 l7 i
end
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+ u( C. G1 D5 ]+ l* V4 DP_B and P_C is similar, W& ^5 V) p) z6 |
triangular 30,60,90 min, ?* w% B4 i  u/ g1 K; r
u 60,30 min
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in 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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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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