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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 D) r* P8 A# ^: D
  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.
9 R3 g, D3 K! A- i& Q4 a3 C  Loads are processed by each operator for the following time:
/ m) @( B* T) I' S: ?  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
. `! H* [. u, M! {  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.
' m9 ?' f; K0 Z$ J* a. N  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
& z8 z. |% H' c: g: E! t$ {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.% d. _  D, a1 A
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问题:
0 s% M. y$ u! e4 GAfter 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
. |0 X4 A* ?% Omove into Q_wait /*Capacity is infinte*/
( G6 |6 t, y9 B' S% U8 F% ymove into Q_process /*Single capacity*/
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; h# {* ]4 g$ @  s8 g% Juse R_A for n 60,10 min /*Resource A*/
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send to P_B
5 n/ O8 }. ^, b2 l: yend
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P_B and P_C is similar
7 }; _: V9 l( f( T2 h" q* atriangular 30,60,90 min
- _8 r2 i2 L: D2 e# k% M1 fu 60,30 min
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in P_C, you need to send to die.; Z$ S, G6 R% S: ^5 F; Y

* t2 V5 J3 ^6 O" G, KThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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& `$ O/ U7 l8 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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