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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,9 Q9 B- Z. ~. T) B  n* Y1 Z
  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.
4 e9 i8 q! B' A& `  Y  Z- x  Loads are processed by each operator for the following time:
  c' B( q* ?: K. C$ x4 f  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
6 p  U8 e* p# ]" a7 i' i  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.
$ `9 t2 U( C* p+ U0 I  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
. m: E. _0 n# y# }5 x4 Z- s, 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.; F4 n0 Q- a' o% C3 w6 E. z4 ?
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问题:0 Y( }0 D& P  w% ^1 J
After running the model for 10,000 days, what was the average number of loads in each process?7 K. g8 f' ~3 j$ F* E, Z8 a

' r1 E) x! g/ H* U; ~不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
1 w$ S( e/ X* L% p" [+ q) Mmove into Q_wait /*Capacity is infinte*/
# `: z3 L$ o+ l* n7 x8 R6 `: {move into Q_process /*Single capacity*/8 ?8 E3 W2 f/ G: \# N- i2 E
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use R_A for n 60,10 min /*Resource A*/; M- d8 V& a3 q0 x
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send to P_B
( i! @- ^9 F+ l! h$ J# Z/ c' \end
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9 Z: i1 R! f# ?( J: S4 ?P_B and P_C is similar7 w( j! z; z9 n. y0 C
triangular 30,60,90 min  k# L$ E: z7 i) a' G4 B$ I
u 60,30 min
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in 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.5 ~7 r1 p3 d. K* ~( I) c

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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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