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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,
" U1 ~' d$ x! m; \; e  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.
, x$ R7 v% `7 I! E! J, _+ g  Loads are processed by each operator for the following time:
1 K& {8 S& o$ A: d% D1 D  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.7 H4 X$ z& `4 g* O( L% s
  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.# Z% L' |1 |/ l' e; _
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.% X' o. ~; n/ U
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.4 l. r- [3 q) }+ w5 @1 u$ E

5 l' `; e" o" E5 O# W$ U3 p问题:
3 i; |/ Q2 |! o4 M- E9 v  pAfter running the model for 10,000 days, what was the average number of loads in each process?. R* c+ W1 k/ `2 _4 X+ W( d

  T- g) g0 Q5 u0 |不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving- Z+ p. V2 L" H7 ?" ~' D9 j
move into Q_wait /*Capacity is infinte*/
) o; F( ~  z4 {% y1 qmove into Q_process /*Single capacity*/
3 {5 V! b1 j3 b) \
# e# e# Z+ N4 Q4 Buse R_A for n 60,10 min /*Resource A*/
5 _3 w. F" F$ \! S% h9 f- T0 P3 I) A+ Y2 x# E& V
send to P_B
5 V9 M! q+ f" u4 Fend! h1 }0 d, X( u& M

6 |+ |2 R! Y$ k$ ~" E- c; \( _/ hP_B and P_C is similar& b9 V& ?8 M" E  ]  l2 J1 d. l$ g
triangular 30,60,90 min
1 y( _7 k# f1 U" F4 C6 ~u 60,30 min
4 O/ p1 i! v( P7 o& H( H, }6 s; }' R9 s& L
6 O3 G+ p6 O# O) I
in P_C, you need to send to die.3 R7 P, u7 C* V2 V
# I6 K2 Q+ _& R9 M' O( D  A: [$ z
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
) I/ r) h. t7 n. Q4 @, _, f" J! t+ e# Z

+ p$ ]' a7 n2 M) d1 S" wRemember 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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