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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,
5 V- M5 J: H& A8 I3 G; S8 D) h- J( s  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.
: n: C0 ~2 h0 f  Loads are processed by each operator for the following time:
# i5 g9 D& W+ @! R1 I2 Z* \1 L  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
1 G4 s0 [! `2 q7 e9 k0 \  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.6 Y3 P& n8 u& |8 D4 \
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.- W# s2 Y# O/ Y) O
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.4 ]- Y' y) n+ g  R3 s

# U% j" H8 e# u# r  h问题:. r' x' s# R9 \4 o' e( e# a  D
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( j) R( [4 R- V# Z
move into Q_wait /*Capacity is infinte*/
) b  Q' t1 B0 e' w! |* |9 pmove into Q_process /*Single capacity*/+ c' o/ s* g4 G: H$ }: O' m1 h
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
5 i. N! Z4 o7 p+ w& Y+ O4 Qend. \- B$ p% [$ n8 Z! X  Y$ y0 K; S
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P_B and P_C is similar
! }( Z( k3 Y, P; t0 A  Utriangular 30,60,90 min
' X6 P2 s/ n' A2 F& b# }5 a0 T2 au 60,30 min
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/ f2 }4 x  i/ bin P_C, you need to send to die.) z, W* Y1 q; E9 J& E

. S$ K( l- f! P- o# U3 ZThen 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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