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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,
0 r* @& u/ Y. S; S8 Q4 F  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 a% V& [/ C% ^* p0 d
  Loads are processed by each operator for the following time:
# d5 ~* j" m1 M! Z  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins." @: A/ u1 a' C: X4 S8 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.4 l& w) D& A& D! F! X) o% M( g
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
( ?6 {0 U! F- c3 G8 u) DSend 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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' L5 t0 x8 L; F, s( H& l$ B# N! Z问题:' P, E' t: `) F$ \
After running the model for 10,000 days, what was the average number of loads in each process?) Z  w! x, u9 _' P$ u
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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" V% F* `7 V( Q5 u# G6 C
move into Q_wait /*Capacity is infinte*/" P: n2 d9 N* T6 X2 E0 t8 @9 `
move into Q_process /*Single capacity*/+ O* J) `8 q; P: b/ l! o

8 m0 M* C, Z0 {( |use R_A for n 60,10 min /*Resource A*/
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send to P_B
+ d6 e1 D( Q& Y3 A% e! M; \end$ z, M) ]( U+ N; {4 B+ W2 q

+ {1 F8 ]# ?0 u8 W- |, kP_B and P_C is similar# a; R( x6 i( ]% |) f- h
triangular 30,60,90 min( ?$ I5 F+ g6 d& Z0 {0 [
u 60,30 min5 X- ^1 F4 I$ h- v( t
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6 `  J5 x; h# W) U  j* P- Sin 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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6 w" T+ k3 d! Z$ P! u5 z' vRemember 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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