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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,
1 J4 J8 {8 G- R* s* O' p  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., P4 M3 N. |8 Q+ v2 }4 W
  Loads are processed by each operator for the following time:
% M9 f1 ?0 t! z1 F5 I9 D* u  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.. i3 N9 u8 I- o( @3 |2 o& n
  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! C, H; j& u$ V& k. i
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.& \( g5 V( h( F) S9 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.! j6 R+ R0 f, w, U3 H

% S# T1 V- ?: w, k2 e问题:# e; L- A; q+ ~3 B
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
& l; C: O! V6 u( S2 \9 \move into Q_wait /*Capacity is infinte*/
  X/ d$ A( v: F2 q5 amove into Q_process /*Single capacity*/" q/ G; e0 Z6 @/ o( Q$ C" }

" v. I9 f( Q/ X5 j( C6 `7 ~use R_A for n 60,10 min /*Resource A*/* ?% ]8 T" T9 G" }4 }
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send to P_B
/ m. \# U% ?. S# w$ g/ k& xend" s0 z& T, @) P2 ?/ [) ]
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P_B and P_C is similar" p- c) c6 a/ L5 o1 A0 C( d
triangular 30,60,90 min
8 i  k4 j, h+ W, o5 S6 ^$ n' }3 nu 60,30 min
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in P_C, you need to send to die.$ V" f2 M0 y0 r3 D1 G
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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.; ^2 D, J, s  V2 D

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8 v" Y/ T3 W/ q$ \1 FRemember 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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