Material handling tools for a discrete manufacturing system: A comparison of optimization and simulation

2017 ◽  
Author(s):  
Yanting Ni ◽  
Frank Werner
Keyword(s):  
Material Handling ◽  
Manufacturing System ◽  
System A ◽  
Discrete Manufacturing System ◽  
Discrete Manufacturing ◽  
Optimization And Simulation

Energy efficiency quantitative analysis method of discrete manufacturing system

2017 ◽  
Vol 31 (19-21) ◽  
pp. 1740071 ◽  
Author(s):  
Yan Wang ◽  
Zhicheng Ji
Keyword(s):  
Energy Efficiency ◽  
Index System ◽  
Manufacturing System ◽  
Evaluation Method ◽  
Prediction Method ◽  
Evaluation Index System ◽  
Index Structure ◽  
Evaluation Index ◽  
Discrete Manufacturing System ◽  
Discrete Manufacturing

The difficulty in the energy efficiency analysis of discrete manufacturing system is the lack of evaluation index system. In this paper, a novel evaluation index system with three layers and 10 indexes was presented to analyze the overall energy consumption level of the discrete manufacturing system. Then, with the consideration of the difficulties in directly obtaining machine energy efficiency, a prediction method based on recursive variable forgetting factor identification was put forward to calculate it. Furthermore, a comprehensive quantitative evaluation method of rough set and attribute hierarchical model was designed based on the index structure to evaluate the energy efficiency level. Finally, an experiment was used to illustrate the effectiveness of our evaluation index system and method.

Study On Simulation Of The Main Shaft Production Line

2012 ◽  
Vol 472-475 ◽  
pp. 2076-2079 ◽  
Author(s):  
Shu Feng Chai ◽  
Su Jun Luo ◽  
Li Jie Zhang
Keyword(s):  
Production System ◽  
Production Line ◽  
Manufacturing Industry ◽  
Production Efficiency ◽  
Manufacturing System ◽  
Main Shaft ◽  
Building Model ◽  
Discrete Manufacturing System ◽  
Discrete Manufacturing ◽  
Improve Production Efficiency

Since modern production system is a highly complicated discrete manufacturing system, it is very difficult to design the production line by traditional means. However, through building model of production system in virtual environment, analyzing and evaluating production system performance based on system simulating technology, the production system’s parameter and configuration can be optimized ahead of production plan to optimize production process and improve production efficiency. In this paper, the main shaft production line simulation model is constructed based on the object oriented discrete system software eM-Plant. The production line throughput, utilization and bottleneck operations are analyzed. Based on this, it can support the configuration of production line optimized. The example verifies that the modeling and simulation technology could be successfully used in manufacturing industry.

Mission Reliability Modeling of Manufacturing Processes and System

2012 ◽  
Vol 248 ◽  
pp. 450-455 ◽  
Author(s):  
Yan Chao Liu ◽  
Wen Jun Zhang ◽  
Gui Cui Fu ◽  
Nan Li
Keyword(s):  
Manufacturing Systems ◽  
Manufacturing System ◽  
Quality Parameters ◽  
Reliability Modeling ◽  
Inspection Errors ◽  
System A ◽  
Modeling Process ◽  
Discrete Manufacturing System ◽  
Two Factors ◽  
Quality Of Products

Mission reliability model is important for evaluation of the production capability of a manufacturing system. The manufacturing system mission reliability refers to the ability that the manufacturing system completes the production mission under specified conditions and within the specified time. The production mission includes two factors: quality of products and the productivity. Calculation of traditional evaluation parameters like Cpk and Ppk excludes the abnormal interruption of production and inspection errors. For some manufacturing systems with low degree of automation in the field of domestic weapons, both production disruptions and misjudgments in inspection processes have an impact on the mission reliability of the manufacturing system. A method of mission reliability modeling of discrete manufacturing system is proposed in this paper. The manufacturing system is composed of several processes. Abnormal interruption of production, inspection errors and substandard quality parameters of the products are involved in the modeling of the process mission reliability. The sequential and concurrent relationship between the processes is also taken into account in the modeling process.

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