scholarly journals Evolutionary Algorithm Technique to Optimize Configurational Cost in Reconfigurable Manufacturing System

2020 ◽  
Vol 8 (6) ◽  
pp. 1283-1290
Keyword(s):  
Evolutionary Algorithm ◽  
Manufacturing Industry ◽  
Manufacturing System ◽  
Optimal Solution ◽  
Reconfigurable Manufacturing ◽  
Hardware Configuration ◽  
Software And Hardware ◽  
Optimum Solution ◽  
The Cost

In past few decades, manufacturing industry has been trying to achieve the high quality customized products in the flexible batches. Moreover due to the dynamic demand of market, the product lifecycle and flexibility is one of the major concern and Reconfiguration Manufacturing System is one of the discovery that matches these criteria such as flexibility, reliability and others, the main advantage of RMS is its adoptability to cope up with change in software and hardware configuration for adjusting the promptly. Hence in this paper we have proposed a optimized RMS , the main objective is to reduce the cost of the configuration through task scheduling, we propose Evolutionary algorithm based approach for configuration, moreover here we find the optimal solution through utilizing the machine over the operation set for each machine part, later we find the optimal from the probable assignment. In order to evaluate the algorithm we have performed the case study, a case study shows that Evolutionary algorithm based approach achieves the optimum solution when compared to the existing.

An Approach to Develop Shaper Cum Slotter Mechanism: A Reconfigurable Machine Tool

2019 ◽  
Vol 8 (2) ◽  
pp. 195-206 ◽  
Author(s):  
Ashutosh Singh ◽  
Mohammad Asjad ◽  
Piyush Gupta ◽  
Jahangir Quamar
Keyword(s):  
Machine Tool ◽  
Manufacturing Systems ◽  
Manufacturing Industry ◽  
Manufacturing System ◽  
Design Tool ◽  
Reconfigurable Manufacturing ◽  
Traditional Structure ◽  
Manufacturing Techniques ◽  
Solid Works ◽  
Reconfigurable Machine Tool

The traditional structure of machines (such as lathe, milling, shaper, slotter, drilling and planer) has become questionable because of the modular concepts (such as modularity, scalability, convertibility, mobility and flexibility) and reconfiguration becomes a promising approach towards modular manufacturing machines, in which manufacturing techniques are independent of changes. In this area, reconfigurable machine tool (RMT) forms a new class of modular machines in current manufacturing scenario where the manufacturing industry put a strong pressure on good quality and price reduction. The capabilities of the machines tool and manufacturing systems in reconfigurable manufacturing system (RMS) change with each reconfiguration (both software and hardware modules). In this case, an approach is presented for reconfiguration of horizontal shaper machine for developing the modular shaper cum slotter machine in a manufacturing system by adding some auxiliary (like Scott Russel mechanism) and some basic modules and the reconfiguration features of traditional shaper and slotter machine are also discussed. The proposed approach is illustrated with a figure, which has been designed on 3-D design tool (solid-works software platform). It is expected that, this work will help designers and practising engineers by making them aware of the reconfiguration mechanisms on traditional shaper machine, which have become a necessity for the very survival of manufacturing by lowering the operational costs.

scholarly journals Forward Link Optimization for the Design of VHTS Satellite Networks

Electronics ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 473 ◽  
Author(s):  
Flor G. Ortiz-Gomez ◽  
Ramón Martínez ◽  
Miguel A. Salas-Natera ◽  
Andrés Cornejo ◽  
Salvador Landeros-Ayala
Keyword(s):  
Cost Model ◽  
High Capacity ◽  
Optimal Solution ◽  
Satellite Networks ◽  
Forward Link ◽  
User Terminal ◽  
Trade Offs ◽  
Service Areas ◽  
Optimum Solution ◽  
The Cost

The concept of geostationary VHTS (Very High Throughput Satellites) is based on multibeam coverage with intensive frequency and polarization reuse, in addition to the use of larger bandwidths in the feeder links, in order to provide high capacity satellite links at a reduced cost per Gbps in orbit. The dimensioning and design of satellite networks based on VHTS imposes the analysis of multiple trade-offs to achieve an optimal solution in terms of cost, capacity, and the figure of merit of the user terminal. In this paper, we propose a new method for sizing VHTS satellite networks based on an analytical expression of the forward link CINR (Carrier-to-Interference-plus-Noise Ratio) that is used to evaluate the trade-off of different combinations of system parameters. The proposed method considers both technical and commercial requirements as inputs, including the constraints to achieve the optimum solution in terms of the user G/T, the number of beams, and the system cost. The cost model includes both satellite and ground segments. Exemplary results are presented with feeder links using Q/V bands, DVB-S2X and transmission methods based on CCM and VCM (Constant and Variable Coding and Modulation, respectively) in two scenarios with different service areas.

Performance Metrics for Product Flow Configuration in a Reconfigurable Manufacturing System (RMS)

2019 ◽  
Author(s):  
Prince Pal Singh ◽  
Jatinder Madan ◽  
Harwinder Singh
Keyword(s):  
Manufacturing System ◽  
Performance Metrics ◽  
Reconfigurable Manufacturing ◽  
Reconfigurable Manufacturing System ◽  
Industrial Case Study ◽  
Flow Configuration ◽  
Product Flow ◽  
Performance Metric ◽  
Hierarchy Process

Abstract We propose a systematic approach for product flow configuration selection for reconfigurable manufacturing system (RMS) that considers ten industrially relevant most important factors. The paper first defines performance metrics for the identified factors. A composite performance metric (CPM) has been proposed, which accounts for all ten-performance metrics to assess the performance of RMS with the help of a combined score. The methodology of developing CPM applies analytical hierarchy process (AHP) approach where weightage to each of the performance metric is also considered. To showcase the usefulness and feasibility of the CPM, it has been applied in an industrial environment with the help of an industrial case study. Both the CPM and other metric scores were found to be quite useful to identify a suitable configuration out of the available alternatives.

Comparison of Different Scenarios Using Computer Simulation to Improve the Manufacturing System Productivity: Case Study

2013 ◽  
Vol 845 ◽  
pp. 770-774 ◽  
Author(s):  
Seyed Mojib Zahraee ◽  
Milad Hatami ◽  
J.M. Rohani ◽  
H. Mihanzadeh ◽  
Mohammadreza Haghighi
Keyword(s):  
Computer Simulation ◽  
Production Line ◽  
Manufacturing Systems ◽  
Manufacturing Industry ◽  
Manufacturing System ◽  
Waiting Times ◽  
Manufacturing Companies ◽  
System Productivity ◽  
High Resource

In the manufacturing industry, managers and engineers are seeking to find methods in order to eliminate the common problems in manufacturing systems such as bottlenecks and waiting times. This is because that all of these kinds of problems impose extra cost to the companies. In addition, manufacturing companies are striving to sustain their competitiveness by improving productivity, efficiency and quality of manufacturing industry for instance high throughput and high resource utilization. The paper concentrates on the application of computer simulation to analysis manufacturing system in order to improve the productivity. Therefore, this study introduces a color manufacturing line as a case study and the basic application of arena 13.9 software. The goal of this paper is to improve the productivity and efficiency of the production line by using computer simulation. To achieve this goal, first the basic model of the current situation of production line was simulated. Second, three different alternatives were simulated and modified to find the best scenario based on the maximum productivity and minimum total cost.

scholarly journals Towards Practical Guidelines for Conversion from Fixed to Reconfigurable Manufacturing Automation Systems

2018 ◽  
Vol 03 (01) ◽  
pp. 1850002 ◽  
Author(s):  
Alan Coppini ◽  
Michael A. Saliba
Keyword(s):  
Manufacturing System ◽  
Economic Feasibility ◽  
Reconfigurable Manufacturing ◽  
Reconfigurable Manufacturing System ◽  
Manufacturing Automation ◽  
Reconfigurable System ◽  
Automation Systems ◽  
Practical Guidelines ◽  
Manufacturing Machine

It is generally considered that economic feasibility of a reconfigurable manufacturing system (RMS) is only attainable if the system is defined to be reconfigurable at the outset of its design. In this work, we consider the potential exception to this perception, in the context of a common industrial scenario where a specialized and expensive manufacturing machine or system will otherwise be rendered useless due to the loss of business of the particular product being manufactured. Specific guidelines to convert from a fixed to a reconfigurable system are proposed, and evaluated through a case study. It is shown that under certain conditions, RMSs may be economically feasible even if they are developed through the modification of pre-existing dedicated systems.

scholarly journals Comparison of Cycle Reduction and Model Reduction Strategies for the Design Optimization of Hybrid Powertrains on Driving Cycles

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 948
Author(s):  
Adham Kaloun ◽  
Stéphane Brisset ◽  
Maxime Ogier ◽  
Mariam Ahmed ◽  
Robin Vincent
Keyword(s):  
Model Reduction ◽  
Optimal Solution ◽  
Design Strategies ◽  
Component Level ◽  
Hybrid Powertrain ◽  
Reduction Techniques ◽  
Driving Cycles ◽  
Reduction Strategies ◽  
The Cost

Decision-making is a crucial and difficult step in the design process of complex systems such as the hybrid powertrain. Finding an optimal solution requires the system feedback. This can be, depending on the granularity of the models at the component level, highly time-consuming. This is even more true when the system’s performance is determined by its control. In fact, various possibilities can be selected to deliver the required torque to the wheels during a driving cycle. In this work, two different design strategies are proposed to minimize the fuel consumption and the cost of the hybrid powertrain. Both strategies adopt the iterative framework which allows for the separation of the powertrain design problem and its control while leading to system optimality. The first approach is based on model reduction, while the second approach relies on improved cycle reduction techniques. They are then applied to a parallel hybrid vehicle case study, leading to important cost reduction in reasonable delays and are compared using different metrics.

scholarly journals Forward Link Optimization for the Design of VHTS Satellite Networks

2020 ◽  
Author(s):  
Flor G. Ortiz-Gomez ◽  
Ramón Martínez ◽  
Miguel A. Salas-Natera ◽  
Andrés Cornejo ◽  
Salvador Landeros-Ayala
Keyword(s):  
Cost Model ◽  
High Capacity ◽  
Optimal Solution ◽  
Satellite Networks ◽  
Forward Link ◽  
User Terminal ◽  
Trade Offs ◽  
Service Areas ◽  
Optimum Solution ◽  
The Cost

The concept of geostationary VHTS (Very High Throughput Satellites) is based on multibeam coverage with intensive frequency and polarization reuse in addition to the use of larger bandwidths in the feeder links, in order to provide high capacity satellite links at a reduced cost per Gbps in orbit. The dimensioning and design of satellite networks based on VHTS imposes the analysis of multiple trade-offs to achieve an optimal solution in terms of cost, capacity and figure of merit of the user terminal. In this paper, we propose a new method for sizing VHTS satellite networks based on an analytical expression of the forward link CINR (Carrier-to-Interference-plus-Noise Ratio) that is used to evaluate the trade-off of different combinations of system parameters. The proposed method considers both technical and commercial requirements as inputs including the constraints to achieve the optimum solution in terms of the user G/T, the number of beams and the system cost. The cost model includes both satellite and ground segments. Exemplary results are presented with feeder links using Q/V bands, DVB-S2X and transmission methods based on CCM and VCM (Constant and Variable Coding and Modulation, respectively) in two scenarios with different service areas.

scholarly journals Optimal Alternatives by Controlling Time and Cost of a Multi-Level Car Park Using Excel-Solver Program

2019 ◽  
Vol 54 (6) ◽  
Author(s):  
Sada Abdalkhaliq Hasan
Keyword(s):  
Optimal Solution ◽  
Time Frame ◽  
Proposed Model ◽  
Car Park ◽  
Overall Performance ◽  
Multi Level ◽  
Excel Solver ◽  
The Cost ◽  
The City

In this research the best cost and time are identified to implement a multi-level car park. The aim of this research is to develop a time frame model, including time and cost analysis, and to find optimal alternatives for a multi-level garage project during the planning phase. The proposed model has been developed using Solver program in Excel built for combining cost and time calculations by adopting the Project Management Software (MS-Project) to facilitate optimal solution access. In future the same project can be implemented at the lowest possible cost. This research concluded that it is possible to obtain the optimal solution after analyzing the alternatives using the Solver program and then taking the results of the optimization process to perform the improvement of the timeline. The research highlights the factors such as: the estimated cost, the planned time and the alternatives available for optimum performance aimed at finding optimal solutions and thus enhancing overall performance. The research was applied to the case study of one of the projects implemented within the city and found that the results are consistent with the research objective. According application of the model, the solution shows it will reduce cost and time to about 190292 $ and 91day from the cost and time of actual project.

scholarly journals Product range optimization – case study

2010 ◽  
Author(s):  
Simona Barsan ◽  
Mihaela Sima
Keyword(s):  
Production Capacity ◽  
Optimal Solution ◽  
Optimization Procedure ◽  
Product Range ◽  
Market Requirements ◽  
Products Analysis ◽  
The Cost ◽  
A Company ◽  
Selection Of

The paper presents the optimizing procedure of the product range manufactured by a company which operates in the area of production and sales of the milling and bakery products. The paper authors have taken this company as an example since the products it manufactures and commercializes address to population and are required to meet both qualitative and quantitative market requirements. After a brief overview of the company, one analyses its production capacity, staff structure and distribution as well as the concern of the company for the employees’ training in its activity field, so as to fulfill all the necessary and required conditions for developing a qualitative activity. The analysis continues with: the cost of the product before optimization, software presentation and computerized optimization procedure, the selection of the products to be optimized, data collection, the optimization procedure, results obtaining and analysis, choosing the optimal solution for the analyzed products analysis and for the future competitiveness of the company.

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