Search results for "Manufacturing system"
showing 4 items of 34 documents
Reconfiguration: a key to handle exceptions and performance deteriorations in manufacturing operations
2005
During a manufacturing operation, exceptions may occur dynamically and unpredictably. Their occurrence may lead to the degradation of system performance or, in the worst case scenario may interrupt the production process by causing errors in the schedule plan. This paper classifies three families of exceptions: (1) out-of-order events such as machine breakdowns, (2) operational out-of-ordinary events such as rush orders and (3) deteriorations of manufacturing resource performance such as reductions of machines' utilization. In all cases, in order to maintain an adequate level of system performance, it is necessary to detect exceptions, to diagnose them quickly and to recover them by taking …
Low-cost solutions for manipulation tasks in manufacturing systems: balancing costs and performances
2010
Abstract Industrial robots are distinguished from other types of machinery mainly on the basis of their programmability and adaptability to different tasks. However, the cost s of the state of the art solutions for every system within their structure became very high compared with some applications. This work presents two proposed solutions of so called robotic manipulators, which may fulfil some of the manipulating tasks specific to industrial robots while using low-cost solutions of transmission, actuation and automation systems.
Speed control of double-sided linear induction motors for automated manufacturing systems
2014
The double-sided linear induction motor (DLIM) is acquiring a significant relevance in the application of automated manufacturing systems. For this purpose, the modeling, simulation and determination of the parameters of a double-sided linear induction motor is presented in this paper. Furthermore, the DLIM constant voltage/frequency speed control system for this application is here described. In order to verify the performance of the proposed system, a suitable test bench for the DLIM motor is set-up. From the good agreement shown by the comparison between measured and simulated results, it can be stated that the DLIM model and the speed control system is successfully validated. © 2014 IEE…
Globalization and its impact on operational decisions
2009
PurposeThis paper aims to analyse the impact of globalization on the manufacturing operations of industries and industrial districts and how it influences the specialization and diversification of manufacturing decisions.Design/methodology/approachThe sample includes 9,684 Spanish manufacturing textile firms and the analysis is both cross‐sectional and longitudinal.FindingsThe results show that globalization tends to diminish the district and subsector effects over time, but they also show the positive impact of specialization on productivity and of diversification on business growth.Originality/valueThe paper indicates to managers that the production function in textile firms has viability…