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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,
% k* K1 v& Y  l9 v* |1 G  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.
+ j! }7 a. ^1 e; t+ ?$ @5 [* s  Loads are processed by each operator for the following time:7 C6 M- N8 ~1 j: u% k3 Q! f$ i
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
+ n1 P$ V0 Q- L  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.% d) @8 J' a$ |8 `( E: Q) h& l/ A
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.: t, r* H- P4 Y- ?
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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& j" r( U+ C6 W$ E8 ~% c. K3 R问题:& K- B# O1 a( M0 |; m# T, C8 u
After running the model for 10,000 days, what was the average number of loads in each process?
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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% ^1 ?) D" \% q" r, ~4 w' @
move into Q_wait /*Capacity is infinte*/5 o: g: L$ ~# q+ T% S4 y9 J
move into Q_process /*Single capacity*/) D- G# ]2 `4 X* X7 ?2 c, M- Y

' I6 ]+ D/ F5 k, O+ ~use R_A for n 60,10 min /*Resource A*/& L( ]# H5 B1 k6 F- a* X) p& D
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send to P_B% g: ^+ ]% G1 z* B0 d; \
end
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" V2 ^: Z5 B. g0 n/ h0 ZP_B and P_C is similar/ a: l. J& ]" J, G
triangular 30,60,90 min% g3 b6 x& j8 ?
u 60,30 min
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in P_C, you need to send to die.3 F. v8 m5 c, K" ^2 G8 o

% f: R  G$ Q8 i" B2 m' u% x# u. LThen 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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