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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,
4 x+ m, {8 e5 K* B$ }( M: `  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 |* q/ T& ?4 E  Loads are processed by each operator for the following time:
. u! M' D! I: H* v  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.5 \( a( z0 @% F- R- X7 h
  Worker_B does the job according to a triangular distribution with a min of 30 mins, most likely value of 60 mins, and a max of 90 mins., ~" t9 n& W+ q5 s
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.. {( F) O' p4 p' _2 s# h
Send loads to each pocess at the same rate (an exponentially distributed inter-arrival time with a mean of 68 mins) to understand the difference in the processing times of the three workers.7 X& q" P9 {6 j, h6 J* W
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问题:6 F, B0 a: e/ L. a+ p9 l; O8 U9 L6 w
After running the model for 10,000 days, what was the average number of loads in each process?- U0 d0 }$ ]6 D* A3 f: w9 p
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不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
) ?% X, N6 y, u$ s2 A; L8 Vmove into Q_wait /*Capacity is infinte*/# K* g; Y) @* o3 O
move into Q_process /*Single capacity*// n9 s; i+ Q, C; ^; r
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
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9 [3 [6 [% i1 F. M# ]+ \) mP_B and P_C is similar
5 |$ I1 l/ H. ktriangular 30,60,90 min( s( v3 b; _. |3 K! B2 P
u 60,30 min
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. ^6 {9 v, S* C+ m5 Fin P_C, you need to send to die.- J2 ^0 Q8 H; l* f6 Q
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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.) t% ]4 H  O0 `% ?- S
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' Z2 k6 m) d  fRemember 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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