scholarly journals System Modeling and Real-Time Simulator for Highly Model-Mixed Assembly Systems

1999 ◽  
Vol 121 (2) ◽  
pp. 282-289 ◽  
Author(s):  
Chung-Hsien Kuo ◽  
Han-Pang Huang ◽  
Kuang C. Wei ◽  
Steve S. H. Tang
Keyword(s):  
Real Time ◽  
Automobile Industry ◽  
Production Systems ◽  
System Modeling ◽  
Rapid Change ◽  
Assembly Systems ◽  
Assembly Lines ◽  
Flexible Assembly ◽  
Automobile Assembly ◽  
Demand Fluctuations

In recent years, the automobile industry is facing more challenge than ever due to rapid model change requirements and demand fluctuations. Traditional fixed-type production systems are less capable in coping with the rapid change, while flexible production systems can better meet the requirement of low-volume production with model variations. Flexible machines integrated with model-mixed assembly lines form flexible assembly systems (FASs). In this paper, Colored Timed Petri Net (CTPN) is used to model a highly model-mixed automobile assembly system. Based on this CTPN model, a real-time simulator was developed along with different dispatching rules. Besides, the algorithm of balanced budget work standard (BWS) for a small batch production is developed for adjusting the loading balance of the operators in the highly model-mixed assembly lines. The simulator can be used as an effective tool for developing scheduling strategies.

Comparison between fixed- and walking-worker assembly lines

2005 ◽  
Vol 219 (11) ◽  
pp. 845-848 ◽  
Author(s):  
Q Wang ◽  
G W Owen ◽  
A R Mileham
Keyword(s):  
Assembly Line ◽  
Research Work ◽  
Simulation Models ◽  
Assembly Systems ◽  
Research Approach ◽  
Assembly Lines ◽  
Flexible Assembly ◽  
Alternative Systems ◽  
Local Manufacturing ◽  
Simulation Results

Linear walking-worker assembly lines are a novel form of flexible assembly system where fitters travel along the line carrying out each assembly task at each workstation. They attempt to combine the flexibility of the workbench system with the efficiency of the conventional fixed-worker assembly line. This concept has been implemented in a local manufacturing company where conventional assembly systems have been dominant for many years. This paper describes an investigation into this implemented walking-worker assembly line. The research work makes a comparison of the system's performance based on the same production line operated with fixed workers or with walking workers. The research approach was to develop simulation models for the alternative systems and to compare their simulation results. The results have shown that by using multiple-skilled walking workers this novel system has several advantages over the conventional fixed-worker assembly line under similar conditions.

The Hardware Devices in the Workspace of Intelligent Assembly Cell

2013 ◽  
Vol 365-366 ◽  
pp. 684-687
Author(s):  
Silvia Sebenova ◽  
Michala Šimúnová ◽  
Karol Velíšek
Keyword(s):  
Control System ◽  
Real Time ◽  
Production Systems ◽  
Assembly System ◽  
Applied Mechanics ◽  
The Real ◽  
Flexible Assembly ◽  
Assembly Cell ◽  
Assembly Area ◽  
New Knowledge

The aim of this article is not only to get new knowledge but create the structure of grippers in an automated flexible assembly system. Intelligent manner of this system as a control system will repose in sensing of important and necessary parameters of the system in the real time. There will be presented sensory equipments, which are used in intelligent assembly cell in the Institute of Production Systems and Applied Mechanics, in this contribution. In the next case are solved a handling and an assembling grippers which are shouldered by the sensors. One of the most important subsystem of intelligent assembly cell is assembly area thus we have to design good sensor equipment and good location of it.

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