标题: flexsim第六期培训班的案例初级03 [打印本页] 作者: changwei228 时间: 2012-6-28 13:39 标题: flexsim第六期培训班的案例初级03 Model 3 - Overview
Model building in “Layers”
Introduction of common modelling concepts
Dynamic routing decisions
Itemtypes
Labels
Statistical Distributions
Object Triggers
Global Tables
Build Model 3 in Four Phases
Phase 1: Create Flow
Create and verify flow with FixedResource Class objects only (neglect TaskExecuters).
Phase 2: Add TaskExecutors
Add TaskExecutors
Phase 3: Network Node Paths
Add a NetworkNode path to control the travel path of the Transporters.
Phase 4: Reporting
Add appropriate 3D reporting objects
Purpose
Learn how to assign and use labels on flowitems for routing and processing purposes. Learn how to use an empirical distribution to assign itemtypes.
Description
Parts arrive in a queue exponentially every 30 seconds. There are four part types (1,2,3,4) distributed (20%, 30%, 40%, 10%) respectively (see dempirical in FlexSim Command Summary).
The parts are processed on one of four machines. Each machine is dedicated to a single part type. The processing times at each machine is uniform(100,120) seconds for first time parts, and uniform(120,130) seconds for rework parts.
After the parts are machined, they are put in a queue and wait to be tested. The test time is a constant 10 seconds. Parts that pass, leave the model, failed parts are routed back to the first queue to be reworked. 10% of the parts fail.
Parts being reworked are given priority in the queue.
Questions & Bonus
Where is the bottleneck?
Can you change the color and shape of failed parts?
Add a TaskExecuter to carry parts from the test processor to their destination