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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,/ T( L5 w+ M" j! A+ z- j
  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 J' W0 l6 v7 `, ]* g! I  Loads are processed by each operator for the following time:
5 y7 e$ x/ Y) y. ?3 e1 l" U  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins./ u  H4 O5 s. L
  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.
2 D- K7 b' D4 J- \  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
; r8 i" K6 F; G6 {# y! K# ~1 T5 hSend 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 b2 `, I8 o% f9 s9 o  ~

# k4 b( U& g) u( r1 L问题:
/ w1 v2 ~, [  B( s9 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
. K1 S7 ?* u& K  Fmove into Q_wait /*Capacity is infinte*/
  s3 y4 L5 s/ a, Smove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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send to P_B% b2 B, V. W, F  ^$ n4 O
end
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) b# p7 D1 H$ {3 f9 gP_B and P_C is similar
& j3 Y& E0 h% z7 n, _; `triangular 30,60,90 min
% @- S8 i6 i# {" E% r- K) Zu 60,30 min
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in P_C, you need to send to die.
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' D% f% F/ h7 [  `Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.0 B8 K+ K7 P% g2 W' X  w! I- @
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9 N- z: J, z; h: P+ z
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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