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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,
, d9 m8 H8 u9 i& c  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.
$ R1 y  w. E: f5 u* c7 v# R  Loads are processed by each operator for the following time:
: S8 X: \  c$ [$ w) }( ?6 T! t  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
- M  E: {7 b6 ?& i  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.( }& V; I8 n0 p8 A
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
$ Q2 U, @' i( nSend 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.% U. C" {' Q0 s) P$ y+ K
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问题:1 F! u6 u+ |5 X! t, F
After 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
/ g. C+ J: x* _. Pmove into Q_wait /*Capacity is infinte*/
! J+ c' K" a, V: S  f, E+ Y' pmove into Q_process /*Single capacity*/" n8 }! ~9 k) b  u

& r- I; _! d/ c+ }use R_A for n 60,10 min /*Resource A*/0 U; O: O  h' Z$ V1 K/ N1 k
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send to P_B
0 t. G1 m) y$ l8 l7 n6 Xend% T$ Q5 U+ A# w: A$ O; e" n

# S  D  ]! ]$ o+ q, [) vP_B and P_C is similar
5 {; W/ J( W3 }+ h% }6 itriangular 30,60,90 min
& ]  i+ g8 D- X; j* n% b9 Q: C. Xu 60,30 min
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) r1 H% G! |; D3 J- y- Qin P_C, you need to send to die.* l% v* r- |. Q0 S

8 s0 L, T/ f7 d7 Z$ a* E2 MThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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$ \3 S6 X: _& URemember 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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