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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,
6 H2 _( @/ s) z& I! k, t  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.. V& C4 B: C6 E4 o% j, t
  Loads are processed by each operator for the following time:
' u. @, j( x; ]/ J  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
; G1 d( u( f7 i' s9 [( f; W  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 _; ?$ N2 _8 I  n% q- F. t
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
6 g( H; _4 r, s. z; ESend 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.- y, ]3 q& F6 v

: o/ e( h9 h  n& ?: H问题:1 T5 u3 o/ ^' q1 Z3 O" `
After running the model for 10,000 days, what was the average number of loads in each process?0 B, r9 l. ^$ o  L
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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
; l! t0 H, v/ A# v! @8 t. Dmove into Q_wait /*Capacity is infinte*/
% T; \2 ~5 c/ a- Kmove into Q_process /*Single capacity*/4 t3 [- v; g! s$ e
8 e! n' l1 Q9 _* ?9 F2 k
use R_A for n 60,10 min /*Resource A*/
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$ ]2 F$ x1 n7 Z5 f0 w0 f1 Tsend to P_B
  z8 `# A: |8 d& a% u; h: t" A  X% [end& T' A# _9 {5 d: N  g

% x  {/ G6 M6 q7 U( F+ ]' Z* t* ?P_B and P_C is similar! p; A0 W* C7 y" J1 v+ K0 G
triangular 30,60,90 min
0 |: ?6 q+ P7 J% xu 60,30 min; X) ~' X9 t- `4 G+ }  M) I
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2 T2 {3 s$ A1 M  Vin P_C, you need to send to die.
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8 l% `1 b( ]2 k/ S: q5 r+ ?- EThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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. _* r: P* A4 r. k, {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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