Skip to main content
padlock icon - secure page this page is secure

An analytical model for continuous flow transporters of AMHSs with multi-loop conveyors and priority rules

Buy Article:

$61.00 + tax (Refund Policy)

To quickly and efficiently estimate the performance of continuous flow transporters of automated material handling systems with multi-loop conveyors and priority rules of wafer lots in wafer fabrication systems, the M/M/1/K queuing model and non-pre-emptive priority M/G/1 queuing model with multi-class customers were introduced to analyse the queuing features of the continuous flow transporters. An analytical model is presented for a spine layout of continuous flow transporters which are configured with conveyors and crossovers. In the modelling procedure, a spine layout with crossovers and an outer loop was set up to make differentiated routes. Priority rules of wafer lots were implemented by controlling the outer loop, inner loop and crossovers to access. A case of a 300 mm wafer fabrication with 24 intrabays was applied to validate the analytical model. The performance of the analytical model has been compared with that of an Arena simulation model. Experimental results show that in most cases the relative errors can be controlled to be smaller than 5%. It indicates that the model perform well in performance analysis for continuous flow transporters of automated material handling systems.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: analytical model; automated material handling systems; continuous flow transporters; priority rules; queuing-based

Document Type: Research Article

Affiliations: School of Mechanical Engineering, Tongji University, Shanghai, PR China

Publication date: May 3, 2016

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more