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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,
" X7 l) B5 F, @: D' H# R8 E! W  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 ~( W6 W2 E! e7 q3 h; G/ ~7 i; G
  Loads are processed by each operator for the following time:
1 E9 z5 H, c  M- n8 n6 A  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
. o* f( u$ t  O( x7 V  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.. \4 I" d( O- m4 F
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.. e; e/ u/ Z0 M  ?( V0 c
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 b% c& Y3 D0 ]# f' U
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
9 s: u  j4 @8 Z4 [9 h0 N$ Smove into Q_wait /*Capacity is infinte*/
- f& C2 F6 m$ C/ H- h! ~1 X* Jmove into Q_process /*Single capacity*/
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9 r. J6 T9 Y6 u9 Cuse R_A for n 60,10 min /*Resource A*/
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send to P_B
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P_B and P_C is similar% b9 q/ w; C( q( A$ U  U7 _
triangular 30,60,90 min
9 W. W3 O7 A+ M2 l! t1 ^' u( R/ b+ ou 60,30 min
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9 I( ~5 ^* [* E8 R# t0 U; ain 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.( J0 i4 x" t- ~7 t6 H) ^
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% t8 a: q  r; j$ }3 s& [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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