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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 e, J/ s3 \& n+ Y0 p; r
  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.. L# q- O7 c1 M. Q4 e
  Loads are processed by each operator for the following time:
3 h% O+ G# E( E. d: A$ ~! P0 u) w  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.8 b( Z! R. p! v9 X1 E: n
  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.# g6 u. j7 M4 h
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.4 n$ o0 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.+ @0 F2 }& \* _) w" u

5 s/ `  y7 _' {. d问题:
& c6 j7 ]/ m# [# p, TAfter 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
# x3 n- u' a. I" K/ vmove into Q_wait /*Capacity is infinte*/. o- P& m0 Y6 i/ X/ _: U
move into Q_process /*Single capacity*/3 \7 x2 K) T+ U

, ?8 g' x) g# t7 Z, {  Ouse R_A for n 60,10 min /*Resource A*/
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send to P_B1 g5 Z+ ]8 S9 O+ R+ ~! R
end. e2 }! S" l4 a- m& @+ G8 Q
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P_B and P_C is similar6 \7 p$ F7 g+ d7 t5 A/ P6 A
triangular 30,60,90 min7 g+ F1 `8 n* [+ E
u 60,30 min
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9 ~( U: o9 l# M1 g  Xin P_C, you need to send to die.
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  O+ x4 }, ^- y# O; i( ?: U. ~Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.& f9 R8 i  D) M6 y
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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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