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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 r+ i3 y& b$ Z* L
  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.2 [" r0 i5 f* q  J; R6 v- L; o% Y
  Loads are processed by each operator for the following time:
) W. Z+ U* F) s0 {$ F  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
  G/ D8 E( ]/ T: f+ c6 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 X6 Q; W* t. u7 g
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
  c1 }4 k& z; _. N4 I& j% \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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( W6 ~( Q! `- [+ e: r) W问题:2 V9 S5 H( @3 L7 k
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 arriving5 v# o- F% b) O- o1 |
move into Q_wait /*Capacity is infinte*/
: g0 l( W: j' ?/ m9 kmove into Q_process /*Single capacity*/
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: H# l3 a8 W4 t; d- Juse R_A for n 60,10 min /*Resource A*/
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6 `, p" \1 h% Q# D4 |send to P_B
) m: F2 Y1 A# G) O; `end
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1 a7 w4 ~# B! i+ i2 oP_B and P_C is similar' c) P# X3 L$ t3 i
triangular 30,60,90 min* K% j6 e; n2 ~( @
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.
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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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