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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,
& z! N" G0 l# S3 K. M  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 \3 i* u, N% Z* m( a; u  Loads are processed by each operator for the following time:; s/ c2 M7 I7 R; k
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
* v+ f* \9 M. 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.
) h4 d3 v) |' z6 F" _* d6 x  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.; q. V) a" w( b' a, i- }
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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  r0 W- i3 o% ~1 o' R问题:
% V' d) L8 E+ w8 {; B8 Y  b. qAfter running the model for 10,000 days, what was the average number of loads in each process?4 ?# E; I9 y7 A; S. V# V
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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 I. @6 N5 w8 \4 d$ C2 Lmove into Q_wait /*Capacity is infinte*/  X5 w( f, D7 r5 S/ s+ l
move into Q_process /*Single capacity*/4 J$ L' L% s# B; p9 r# s2 P
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use R_A for n 60,10 min /*Resource A*/% s; @) g0 e" d8 c, \  O8 q6 N
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send to P_B
! p# b8 Y) [7 |/ ^end- V( V& E) o2 g1 m7 r
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P_B and P_C is similar
0 M6 U3 v) J  qtriangular 30,60,90 min+ U  P  a$ O6 M$ B
u 60,30 min
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8 p: n- |1 u0 l+ w! |" d/ w% o3 win P_C, you need to send to die.
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$ \3 Q3 B& V0 ]" N4 iThen 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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