Improving simulation model adaptability with a production control framework

2002 ◽  
Author(s):  
S.M. Gahagan ◽  
J.W. Herrmann
Keyword(s):  
Simulation Model ◽  
Production Control ◽  
Control Framework

Simulation Analysis of Production Control Methods in Manufacturing Systems

2012 ◽  
Vol 490-495 ◽  
pp. 1704-1708
Author(s):  
Shao Wei Feng ◽  
Jing Zhang ◽  
Shao Chun Ding
Keyword(s):  
Simulation Model ◽  
Manufacturing Systems ◽  
Production Control ◽  
Simulation Analysis ◽  
Production Performance ◽  
Buffer Size ◽  
Total System ◽  
Manufacturing Management ◽  
Performance Indexes ◽  
System Output

It is very important to improve shop production performance in manufacturing process. The main manufacturing management methods include Kanban and Drum Buffer Rope (DBR) systems. In this paper computer simulation is used to evaluate the performance of these manufacturing systems. A simulation model was developed to collect and analyze some key performance indexes including total system output, flow time and average WIP invention. The optimal buffer size was found out by studying the two manufacturing systems at different capacities. The systems were also compared with and without machine breakdowns. The simulation model provided a significant insight into the two systems and the benefits of both the systems were realized

Simulation Modeling and Analysis of TFT-LCD Color Filter Fabrication Plants

2011 ◽  
Vol 486 ◽  
pp. 119-122
Author(s):  
James C. Chen ◽  
Po Tsang B. Huang ◽  
Hui Yu Peng ◽  
Ming Chien Hung ◽  
Chih Cheng Chen ◽  
...  
Keyword(s):  
Simulation Model ◽  
Material Handling ◽  
Production Control ◽  
Liquid Crystal Display ◽  
Thin Film Transistor ◽  
Decision Makers ◽  
System Throughput ◽  
Color Filter ◽  
Modeling And Analysis ◽  
Equipment Utilization

An AutoMod simulation model was constructed for real-world 4.5th-generation (4.5G) Thin Film Transistor - Liquid Crystal Display (TFT-LCD) Color Filter (CF) fabrication plants in this study. The characteristics and data of customer orders, production facility, material handling tools, and warehouse (also called stocker) were collected from real plants. Based on these, a simulation model was developed and validated. As the simulation model was complex and had different parameters representing the operation details in the plants, it is of interest to justify the effects of these parameters to the key performance indicators such as system throughput and equipment utilization. Using fishbone analysis, sensitivity analysis and experimental design, a series of simulation experiments were conducted and the resulting simulation model was representative to the CF plants. On the basis of the simulation model with 3-dimension animation, decision makers can conduct what-if analysis for the evaluation of production control policies such as in-process capacity and tact time without disturbing the operations in the real plant. Better alternatives leading to higher system throughput can be identified in system simulation before its real implementation in the fab.

Environmental risk assessment in the work performance at the construction facilities

2021 ◽  
pp. 320-327
Author(s):  
Рустэм Наилевич Ситдиков ◽  
Елена Алексеевна Вайчулис
Keyword(s):  
Work Performance ◽  
Production Control ◽  
Work Organization ◽  
Environmental Safety ◽  
Design Parameters ◽  
Risk Indicator ◽  
Environmental Laws ◽  
Safety Requirements ◽  
Control Framework ◽  
Equipment Failures

Соблюдение требований законодательства Российской Федерации и международных соглашений по охране окружающей среды является обязательным при выполнении всех видов строительно-монтажных работ. Организация эффективного производственного (строительного) контроля за соблюдением требований экологической безопасности позволяет минимизировать риски аварий, инцидентов, отказов оборудования, избежать штрафов, сверхлимитных платежей, репутационных потерь. С целью снижения природоохранных нарушений при проведении работ на объектах строительства предложено применение риск-ориентированного подхода в рамках производственного контроля. Для расчета показателя риска авторами проведен анализ нарушений природоохранного законодательства, определены значимые расчетные параметры, разработаны формы проверочных листов контроля соблюдения требований природоохранного законодательства подрядной организацией при проведении строительных работ. Апробация риск-ориентированного подхода осуществлена на объектах технического перевооружения организаций системы «Транснефть». По результатам апробации даны предложения для внесения изменений в нормативную документацию ПАО «Транснефть». Compliance with the Russian Federation law and international agreements on environmental protection is mandatory when performing all types of construction and installation work. Organization of effective production (construction) control over compliance with environmental safety requirements allows minimizing the risks of accidents, incidents, equipment failures, fines, extrabudgetary payments, and reputation losses. In order to reduce environmental violations during construction site works, it is proposed to apply a risk-based approach within the production control framework. In order to calculate the risk indicator, the authors analyzed violations of environmental legislation, identified significant design parameters, developed checklists for monitoring compliance with environmental laws by the contractor during construction works. Appraisal of the risk-based approach was conducted at the Transneft system entities’ retrofitting facilities. Based on the results of appraisal, proposals for amending the Transneft PJSC regulatory documents were made.

Simulation-Based Sequencing Algorithm for MRO Operations of Train Couplings

2014 ◽  
Vol 1018 ◽  
pp. 581-588
Author(s):  
Alexander Georgiadis
Keyword(s):  
Simulation Model ◽  
Cycle Time ◽  
Performance Indicators ◽  
Production Control ◽  
Case Scenario ◽  
Sequencing Algorithm ◽  
Simulation Based ◽  
Mean Tardiness ◽  
Sequencing Rule ◽  
On Time Delivery

Sequencing rules are often used in production control to improve key performance indicators, such as cycle time, mean tardiness and on-time delivery. However, for Maintenance, Repair and Overhaul (MRO) processes, there is a development need for sequencing rules, which effectively improve these indicators since specific requirements have to be considered and recent studies have mainly been using standard rules and do not allow a clear conclusion. This paper describes the modeling and validation of a real-case scenario, the MRO of train couplings by means of an event-driven simulation. The simulation model is used in order to derive and test a new sequencing rule, the Fix-and-continue algorithm (FACA), as well as to compare its results with standard sequencing rules concerning average cycle time, mean tardiness and on-time delivery. Thereby, the potential of the algorithm is revealed.

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