Authors: None

Abstract:

Keywords:

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.90001

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: ---

Authors: Adgar, Adam; Arnaiz, Aitor; Jantunen, Erkki

Abstract: e-Maintenance is generally understood to be the technology that makes the required information available for the maintenance engineer enabling communication with the supporting system irrespective of where the machine under inspection or maintenance actions is located. Increasing interest in improving overall production efficiency of manufacturing operations, together with technical developments in sensor and analysis equipment and wireless technology has led to accelerated research into e-Maintenance. Findings from a large European research project - Dynamite (Dynamic Decisions in Maintenance) are used to discuss the roles of various actors and roles in the proposed e-Maintenance scheme. The paper also highlights the main challenges faced in developing fully functional and economically optimised e-Maintenance support systems for modern production environments.

Keywords: e-maintenance,machine maintenance,software tools,computerised maintenance management

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00046

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 257-262

Authors: Alhouaij, Ahmad Alali; Simeu-Abazi, Zineb

Abstract: This paper concerns the modelling of maintenance activities in a distributed context. In this work we study the particular case where the maintenance activities are executed by two workshops: a central maintenance workshop (CMW) and a mobile maintenance workshop (MMW). The (CMW) concerns the repairing process for the corrective maintenance and the (MMW) execute all preventive maintenance in several sites according to a defined scheduling. The aim is to take in account the resources (spare parts in the (MMW) and maintenance actions for a given operating budget. A modular approach for modelling a multi-site structure is proposed to achieve the aim of improving the availability of facilities on production sites while minimizing the cost of maintenance.

Keywords: distributed maintenance,modelling,Petri stochastic nets (SPNs),availability,scheduling cost

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00048

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 269-277

Authors: Bach, I.; Bocewicz, G.; Muszynski, W.; Banaszak, Z.

Abstract: Constraint Programming (CP) is an emergent software technology for declarative description and effective solving of large combinatorial problems especially in the area of integrated production planning. In that context, CP can be considered as an appropriate framework for development of decision making software supporting scheduling of multi-robot in a multi-product job shop. The paper deals with multi-resource problem in which more than one shared renewable and non-renewable resource type may be required by manufacturing operation and the availability of each type is time-windows limited. The problem belongs to a class of NP-complete ones. The aim of the paper is to present a knowledge based and CLP-driven approach to multi-robot task allocation providing a prompt service to a set of routine queries stated both in straight and reverse way. Provided examples illustrate both cases while taking into account an accurate as well as an uncertain specification of robots and workers operation time.

Keywords: knowledge engineering,modeling,constraints logic programming,scheduling

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00008

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 32-39

Authors: Baglee, David; Trimble, Robert; MacIntyre, John

Abstract: The importance of maintenance has increased, as high productivity and quality can be achieved by means of welldeveloped maintenance strategies. However, this assumes that maintenance is controlled and equipment is stopped for maintenance using primary methodologies such as Total Productive Maintenance and Reliability Centred Maintenance. This paper identifies the barriers to the implementation of both methodologies within Small to Medium Enterprises and develops a new methodology called Advanced Intergraded Maintenance Management System (AIMMS). The results indicate that AIMMS supports strategic maintenance decisions, and helps to increase equipment effectiveness through prioritising equipment criticality and focusing on specific resources to maximise gains based upon a return on investment.

Keywords: maintenance strategy development

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00040

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 222-227

Authors: Bakhtadze, Natalia N.; Kulba, Vladimir V.; Yadykin, Igor B.; Lototsky, Vladimir A.; Maximov, Evgeny M.

Abstract: The topicality of the problem of power generating facility identification is justified against the background of European and Russian power grids interconnection. Intelligent control techniques for power generation states is presented. A technology for estimating the dynamics of power grid's generating facilities participation in overall primary frequency regulation in contingencies is developed based on frequency and generating capacity time series. Process identification algorithms based on virtual models design using process data archives and knowledge bases are discussed. Associative search methods are used for identification algorithms development.

Keywords: generating facility identification,knowledgebase,associative search models,soft sensors

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00003

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 1-8

Authors: Barbosa, José; Mendes, J. Marco; Leitão, Paulo

Abstract: Service-oriented paradigm is being used to develop distributed and reconfigurable control solutions for factory automation environments. Since service-oriented automation control components are logical entities that provide and consume services, they may have an interface that maps the logical processes into the actions of the representative physical mechatronics. The inter-connection with the physical hardware devices, namely accessing I/Os, is a crucial issue to achieve the vertical IT-enterprise integration in these service-oriented systems, covering the shop floor device control level. This paper describes a device interface approach, in the context of a service-oriented control architecture, in which High-level Petri nets are used as the control description to access to the physical device. The outgoing features of the solution allow integrating the physical behavior into the control of automation components and consequently thereby incorporate it in the modular service-oriented control architecture.

Keywords: service-oriented architectures,re-configurable automation,device interface,high-level petri nets

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00050

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 284-289

Authors: Campos, Monica Lopez; Marquez, Adolfo Crespo

Abstract: The present article does a chronological tour for the most important models of maintenance management, describes them in a general way and classifies them according to their functioning under declarative models and under process oriented models. It distinguishes in addition the innovations proposed by every author and compares the elements that form every model, with some of the points that the norm ISO 9001:2000 mentions, as well as with other criteria considered suitable to the case. From this analysis are derived the results between which are distinguished some desirable characteristics for a modern and efficient maintenance management model. In addition is discussed the application of these models to support industrial needs, as well as its future challenges.

Keywords: maintenance,management,process,model,production system

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00043

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 239-244

Authors: Corrales, J. A.; García, G. J.; Gil, P.; Pomares, J.; Puente, S. T.; Torres, F.

Abstract: This paper describes a multisensorial system employed in a robotic application developed to automatically construct metallic structures. The proposed system has the novelty of a high degree of flexibility with an intelligent multisensorial system. This sensorial system is composed of a visual-force control system, a time of flight 3D-camera, an inertial motion capture system and an indoor localization system. These two last sensors are used to avoid possible collisions between the human operator and the robots working in the same workspace.

Keywords: visual servoing,force control,sensor fusion,estimation algorithms,robot vision

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00025

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 133-138

Authors: De Castro Martins, Thiago; De Sales Guerra Tsuzuki, Marcos

Abstract: This work deals with the problem of minimizing the waste of space that occurs on a rotational placement of a set of irregular bi-dimensional items inside a bi-dimensional container. This problem is approached with an heuristic based on Simulated Annealing (SA) with adaptive neighborhood. Traditional "external penalization" techniques are avoided through the application of the no-fit polygon, that determinates the collision-free area for each polygon before its placement. The SA controls continuous and discrete parameters. The rotation applied and the translation of the polygon are continuous parameters, and the sequence of placement is represented as a set of discrete parameters. For each non-placed item, a limited depth binary search is performed to find a scale factor that when applied to the item, would allow it to be fitted in the container.

Keywords: simulated annealing,placement problems,optimization,probabilistic heuristics

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00020

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 106-111

Authors: Dobre, Dragos; Morel, Gérard; Pétin, Jean-François; Baji, Eddy

Abstract: Operating process plants to control, maintain and manage them remains a complex activity driven by skilled operators. Despite the increasing capabilities of automation and information technologies, only a part of the technical objects of a process plant digitally interact with human beings when performing their tasks. This paper present preliminary work based on the Ambient Intelligence concept in order to improve the digital interaction between human beings and technical devices when sharing common activities.

Keywords: process plant operation,ambient intelligence,SysML,simulation,modelica

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00018

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 94-99

Authors: Dolgui, A.; Guschinsky, N.; Levin, G.

Abstract: In this paper we present the prototype of a decision support system for logical layout design of machining systems. The approach and developed decision support system are focused on systems which are used in the mass production of a unique product or a family of similar products. In these lines, the machining operations are realized on working positions equipped by standard modular spindle heads. The part transportation from a working position to the next one is synchronized. The spindle heads selected and their layout define the system productivity and the final cost. The paper present a novel approach and depicts mathematical and decision-aid methods developed and implemented in the software tool for optimization of each design (or reconfiguration) stage of such a line, in particular, a method for finding the optimal logical layout.

Keywords:

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00053

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 302-307

Authors: El Menceur, M.-O. Ait; Pudlo, P.; Debril, J.-F.; Gorce, P.; Lepoutre, F.-X.

Abstract: Alternative movement techniques identification is primordial in many studies of biology, medicine and ergonomics. Few studies in literature propose quantitative techniques to achieve this purpose. Park et al. (2005) proposed a biomechanical index based technique named JCV. This method finds its limits when dealing with three dimensional complex movements. In the present study we propose a modification of this method so that it will be applied to complex movements. We consider a non habitual end effector (Midpoint between Hips). We obtain other indices, 3BJCV, to which a non-supervised clustering technique is applied. We have applied our method to the ingress movements of 37 young and elderly subjects with or without prosthesis entering in a minivan vehicle. Our method allows the identification of the two big classes of ingress movements observed by Ait El Menceur et al. (2008b).

Keywords: joint contribution vector,automatic classification,automobile ingress movement strategies,young and elderly drivers,biomechanics

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00015

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 75-80

Authors: Elefante, Danilo; Fumagalli, Luca; Garetti, Marco; Levrat, Eric

Abstract: E-maintenance and i-maintenance are raising the strategic role of maintenance. Therefore, the link between new Information and Communication Technologies (ICTs) and maintenance business logics should be understood. In this paper, a framework which is able to describe, analyse and manage the organizational business models of maintenance, is proposed, in order to help draw a road-map to the implementation of advanced ICTs in maintenance organization. The paper introduces the framework construction and describes how a qualitative measurement system has been set-up for the positioning of companies' maintenance practices. Moreover a validation of the framework through multiple case-study experimentation is presented: four different types of Maintenance Business Models have been identified. Eventually, by associating the individual evaluation of advanced ICTs to the framework, a basis for road-mapping their implementation is identified.

Keywords: ICT,maintenance business model,maintenance maturity,maintenance framework

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00047

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 263-268

Authors: Encinas, J. C.; De Las Morenas, J.; Garcia, A.; Pastor, J. M.

Abstract: In order to improve the management of a production chain and the distribution center after it, a management system based on Multi-Agent Systems (MAS) enhanced with Radio-Frequency Identification of products (RFID) is presented here. The best way to demonstrate the benefits of using this solution for the management system, is to apply it to a real company, but this can be impractical. In this paper, a simulation combined with an experimental physical platform is used. This work describes the installations that have been assembled in the AUTOLOG laboratory at the Universidad de Castilla-La Mancha (UCLM) in Spain. The design of the mentioned installations has been carried out in a generic form, allowing adaptation to different manufacturing problems. The objective of this system is to allow the different users of the AUTOLOG laboratory to be able to experiment with multidisciplinary theories, techniques, and algorithms that can be grouped into four areas: automation and robotics, instrumentation and control, production planning, and logistics and distribution.

Keywords: RFID,agents,physical platform,simulation

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00019

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 100-105

Authors: Fawaz, K.; Merzouki, R.; Ould-Bouamama, B.

Abstract: This paper deals with a model based real-time virtual simulator of industrial robot in order to detect eventual external collision. The implemented method concerns a model based Fault Detection and Isolation used to determine any lock of motion from an actuated robot joint after contact with static obstacles. Online implementation has been done in order to validate the proposed approach.

Keywords: fault detection & isolation (FDI),industrial robot,dynamic modelling,co-simulation

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00026

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 139-144

Authors: Fumagalli, Luca; Elefante, Danilo; Macchi, Marco; Iung, Benoit

Abstract: The paper provides the results of an investigation on the perception of new Information and Communication Technologies (ICTs) in the process industry. A research question is the main focus of the investigation: which are the technological components enabling the development and improvement of maintenance operations? Since this topic covers a lot of stuff, the research focus is restricted in this paper, according to two guidelines: first, the comprehensive research scope focuses on the new ICT enabling the improvement of Condition Based Maintenance activities; secondly, the paper focuses on the results retrieved through a case study analysis in the process industry. The investigation is based on the assessment of the maintenance maturity of the companies cooperating in the research, in view of the fact that new ICT perception can be influenced by the maintenance management context in which the technologies are evaluated.

Keywords: condition based maintenance,ICT,maintenance business model,process industry,prognostics

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00045

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 251-256

Authors: Gasior, Dariusz; Józefczyk, Jerzy

Abstract: A production planning problem is addressed in the paper. It consists in the determination of a production plan of products to maximize a total utility connected with their manufacture, taking into account a limited amount of types of resources which are necessary for the production. An uncertain version of the problem is considered when an amount of the resources are not precisely known. The formalism of uncertain variables is proposed in the paper to solve this problem. The solution algorithms for two versions of the uncertain production planning problem are presented. It turned out possible to replace the uncertain problems by their deterministic counterparts. A simple numerical example illustrates the solution algorithms.

Keywords: planning,decision making,intelligent manufacturing systems,uncertainty,knowledge-based systems

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00021

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 112-117

Authors: Gerber, Christian; Ivanova-Vasileva, Ioanna; Hanisch, Hans-Michael

Abstract: To prove the correct behaviour of a distributed control system in any case is to do a closed-loop verification of the control system connected with the plant. Since controller interact with the plant not only via boolean values but via integer-valued data as well, a model of the data processing inside the controller is needed. As formal model we will use the known Net Condition/Event Systems (NCES) and it will be shown exemplarily at the basic arithmetical operations adding and subtracting as well as at the comparison of boolean and integer-valued data how the statements inside the algorithms have to be transformed to the formal model. Consequential, rules will be defined for the transformation of statements with boolean and integer-valued data processing. These will be embedded into the approach of transforming IEC 61499 control system but are not limited to this.

Keywords: verification,NCES,IEC 61499,Carry-Lookahead-Adder,comparison

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00032

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 175-180

Authors: Gregor, Ing. Milan; Budzel, Ing. Fredinand; Stefánik, Ing. Andrej; Plinta, Ing. Dariusz

Abstract: The paper presents the results of research realised in 3D laser scanning and digitization of large size objects of the current production systems. The developed and validated methodology shows the procedure of 3D laser scanning application by the digitization of production halls, machine tools, equipment, etc. The described procedure was tested and validated in chosen industrial companies. The paper also presents achieved benefits and future research goals.

Keywords: laser scanning,digitization,production system,3D modelling

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00017

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 86-93

Authors: Hatem, Sioud; Achour, Zied; Alexandre, Sava; Rezg, Nidhal

Abstract: This note presents a control synthesis approach for discrete event systems modeled by marked graphs with uncontrollable transitions. It solves forbidden state problems characterized by a set of general mutual exclusion constraints. We prove that the closed loop control can reach a deadlock situation. Using the structural proprieties of marked graph we defined causes of the deadlock situation, and we defined a formal method to avoid it.

Keywords: discrete-event system,control theory,deadlock avoidance,supervisory control,state feedback,marked graph,Petri net

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00027

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 145-150

Authors: Hnaien, Faicel; Delorme, Xavier; Dolgui, Alexandre

Abstract: This paper examines supply planning for two level assembly systems under lead time uncertainties. It is supposed that the demand for the finished product and its due date are known. It is assumed also that the component lead time at each level is a random discrete variable. The expected cost is composed of the finished product tardiness cost and the component holding costs. The objective is to find the release dates for the components at level 2 in order to minimize the total expected cost. A genetic algorithm is suggested. The proposed algorithm is evaluated with a variety of supply chain settings in order to verify its robustness across different supply chain scenarios. Moreover, the effect of a local search on the performance of the Genetic Algorithm in terms convergence and computation time is investigated.

Keywords:

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00028

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 151-156

Authors: Ierace, Stefano; Cavalieri, Sergio

Abstract: Continued pressure on companies to reduce costs and improve customer satisfaction has resulted in increasingly detailed examinations of maintenance practices and strategies. At the same time, the role of maintenance nowadays is shifting from the traditional necessary evil to a business chance. However, even if research in this area is on the rise nowadays, little work has been done in order to provide a model for the selection of the suitable maintenance strategy for each piece of equipment. This paper shows a comparison between two techniques, Analytic Hierarchy Process and Fuzzy Logic, as Multi Criteria Decision Methods useful for selecting the most suitable maintenance strategy. The two models have been applied to a real case study carried out in an Italian manufacturing firm.

Keywords: maintenance strategy,analytic hierarchy process,fuzzy logic,condition based maintenance

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00041

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 228-233

Authors: Ivanova-Vasileva, Ioanna; Gerber, Christian; Hanisch, Hans-Michael

Abstract: The best way to prove the correct behaviour of a distributed control system in any case is to do a closed-loop verification of the control system connected with the plant. As formal model we will use the known Net Condition/Event Systems (NCES) and extend the rule-based transformation of the IEC 61499 control system from former publications to the use of complex function blocks interfaces and integer-valued data types. To use variables of these data types at the condition of ECTransitions, the connecting rules between the interface and the Execution Control Chart are expanded. The modelling of the plant as well as the analysis of the reachability graph are presented using a real manufacturing system.

Keywords: verification,closed-loop behaviour,NCES,IEC 61499

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00031

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 169-174

Authors: Janiak, Adam; Janiak, Władysław; Rudek, Radosław; Wielgus, Agnieszka

Abstract: The aging effect can be understood as a deterioration of a machine (tool) that increases a time required to manufacture products. It is highly desirable to minimize the negative influence of this effect, which in case of CNC machine is usually compensated by the increasing of its working speed. Therefore, although a tool efficiency decreases the processing times of jobs (products) can be still kept on the desired level. On the other hand, the increasing of a working speed cases the faster decreasing of a durability of a tool and its premature failure. In this paper, we focus on optimization problems in manufacturing systems, where occur the tool wear of CNC drilling/cutting machine and its compensation at the cost of a durability of a tool. We model such problems by single machine scheduling problems with the aging effect and additional resources with two criteria: time criterion (makespan and maximum lateness) and resource consumption penalty. The objectives are the minimization of time criteria under a given resource consumption and the minimization of resource consumption under a given time criteria. Computational analysis of these problems together with solution algorithms are provided.

Keywords: scheduling,deteriorating,resource allocation,CNC,tool wear

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00023

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 122-126