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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,
6 Y' `: r: l$ v) i- h2 R: m" k  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.
0 a, r4 W' R; U0 X$ R  Loads are processed by each operator for the following time:- y* W( O  H9 ~# u8 f
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
. v" ~: c) ]4 ^+ @1 g) `2 d  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.  }" x4 `2 v' J5 }- g& v+ p, {
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.8 }6 `- y% N$ b! B4 A
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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问题:6 \, h$ B0 o) {. ^
After running the model for 10,000 days, what was the average number of loads in each process?) @3 H$ q7 q9 c1 @: y* J( |/ e
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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* n5 _# T) p. z9 ]. ~& w; Q
move into Q_wait /*Capacity is infinte*/
9 p& g+ U* p6 `- A) dmove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
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( W1 L7 v' W- sP_B and P_C is similar
" v( p' X  d2 i5 Ltriangular 30,60,90 min
: ^2 X; }) V" O& Xu 60,30 min
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6 w* q( g" e, `7 V. p$ F$ Min 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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! D4 e; j2 c6 e& }1 yRemember 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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