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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,/ N# S6 ?% u4 |: 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.
8 e1 d; u: ], A1 S( |& @6 e% i  Loads are processed by each operator for the following time:
% P0 a) [1 {6 t. N! g9 ]  s: k  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.' {8 Q. y* p" Q; _+ w: a% c
  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.
+ C5 M4 N+ o% K+ L  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
5 U" E: |$ f- a( j8 J, ]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.. p9 x- p) v* o' z1 A
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问题:
# _0 u0 q5 T9 Q  NAfter running the model for 10,000 days, what was the average number of loads in each process?0 J# Q7 Y3 t' ?8 o5 t

" z9 c( A$ F) y- k不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving' A1 b8 H6 v% g+ p0 s9 G
move into Q_wait /*Capacity is infinte*/  V9 e8 _& B( ?
move into Q_process /*Single capacity*/) ~* N5 s) R7 M

4 T5 d( ^5 F3 C2 y. J8 T+ Juse R_A for n 60,10 min /*Resource A*/% t# G/ R3 Z0 D* C% b
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send to P_B% E) C; U5 ~' q% Z
end
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' I! n$ o) D+ CP_B and P_C is similar! [+ o9 E3 E9 g5 A4 X% e% \
triangular 30,60,90 min
) n* @) {: o1 fu 60,30 min2 `6 i9 v- B5 c' G
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5 w* P- l8 F3 X, e# Iin P_C, you need to send to die.. J. A/ P+ n/ t8 T5 e/ [! _

8 Y& Q5 Z  T+ V# L  [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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9 v' N! D, A' Q; CRemember 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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