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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,
, A; Z6 S! }3 S4 Y  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.) T; V- I$ B2 v3 e- I" O0 I
  Loads are processed by each operator for the following time:
: {1 z# ^' O! ]) z  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
& B: }  R3 ^4 h$ z3 @* ^3 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.
6 v; E3 }9 I) M$ U* \  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
3 L2 V4 w8 {, {6 wSend 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.7 `) ]- _$ J$ S3 O: e6 k

& }. y0 ]% I( A2 ]. \, G/ E* ^: T问题:8 U/ }) N: D  u2 B  A6 [/ r
After running the model for 10,000 days, what was the average number of loads in each process?
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" p. @! R  K' K2 K7 p; G/ w) z不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving( h4 P- Y: o& K- _6 W: i
move into Q_wait /*Capacity is infinte*/
. Q2 E" c# W) y* L$ @4 cmove into Q_process /*Single capacity*/
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! t/ J8 _2 t: B" xuse R_A for n 60,10 min /*Resource A*/$ I2 {0 E( J; ]/ Z: f: W
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send to P_B
* ~- S- o! ?  I# b1 ]$ n! n* X+ Jend
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6 j7 h9 ~  J7 u; c1 H6 {2 N* RP_B and P_C is similar, x: u, G& g/ d$ p2 T9 ~2 {2 F
triangular 30,60,90 min4 q. {9 k8 f$ G  ?3 \* c- K( U5 l9 K
u 60,30 min7 c7 W' z0 S" v8 q: q

, Q) ]( s. y5 O: ~5 e( h9 p. Z* j
in P_C, you need to send to die.+ y1 L2 a9 g  L$ F6 L: x

- d. B' v% ~0 S: Y; ?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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0 L4 a( i) H. H& Z) ]0 A/ JRemember 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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