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LUCA GALLONI

DOCENTE A CONTRATTO presso: Dipartimento di Scienze e Metodi dell'Ingegneria


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Pubblicazioni

2017 - On the Analysis of Effectiveness in a Manufacturing Cell: A Critical Implementation of Existing Approaches [Articolo su rivista]
Gamberini, Rita; Galloni, Luca; Lolli, Francesco; Rimini, Bianca
abstract

OEE (Overall Equipment Effectiveness) is a widely used indicator in the evaluation of effectiveness of manufacturing systems. However, several authors published alternative approaches for its computation, complicating the implementation step for practitioners. This study analyses the literature regarding OEE, selects four main methodologies for its evaluation and examines the underlying differences between them. A real life case study is analysed to illustrate problems arising during data collection and the differences in results obtained, together with traceable conclusions for improving the performance of production systems, both in traditional and in innovative industrial plants, following Industry 4.0 principles.


2014 - DALLA MANUTENZIONE DEGLI IMPIANTI ALLA PREPARAZIONE AL RIUTILIZZO DI ALCUNE CATEGORIE DI RIFIUTI: NUOVE SFIDE PER LA TEORIA DELLA AFFIDABILITA’ E GLI STUDI SUL CICLO DI VITA DEI PRODOTTI [Articolo su rivista]
Gamberini, Rita; Galloni, Luca; Rimini, Bianca
abstract

La Direttiva europea 2008/98/CE rappresenta il riferimento per la definizione di misure volte a proteggere l’ambiente e la salute umana prevenendo o riducendo gli impatti negativi della produzione e della gestione dei rifiuti e limitando gli impatti complessivi dell’uso delle risorse. La sua emanazione è preceduta da un ampio confronto all’interno della Comunità Europea (CE), le cui tracce sono evidenti: - nella decisione n. 1600/2002/CE che istituisce il Sesto programma comunitario di azione in materia di ambiente e sollecita l’estensione o la revisione della normativa in vigore, in particolare al fine di chiarire la distinzione tra ciò che è rifiuto e ciò che non lo è, nonchè di promuovere lo sviluppo di misure in materia di prevenzione e gestione dei rifiuti, compresa la definizione di obiettivi. Peraltro, la necessità di fornire una definizione di “rifiuto” è ribadita nella comunicazione del 27 Maggio 2003 e nella successiva risoluzione del 20 Aprile 2004 - nella direttiva 2000/53/CE che contribuisce a diffondere principi quali “chi inquina paga”, nonchè la necessità di una fase di progettazione dei prodotti in vista del loro riciclaggio e recupero e il conseguente perseguimento di obiettivi prefissati in termini di reimpiego, riciclaggio e recupero dei rifiuti - nella direttiva 2002/96/CE (ora recente-mente aggiornata dalla direttiva 2012/19/UE), che applica i summenzionati concetti al settore dei RAEE, cioè dei Rifiuti di Apparecchiature Elettriche ed Elettroniche. In tale ambito, si sviluppa nella direttiva 2008/98/CE una forte attenzione a una fase innovativa nella gestione dei rifiuti: la preparazione al riutilizzo, intendendo con tale termine le operazioni di controllo, pulizia e riparazione attraverso cui prodotti o componenti di prodotti diventati rifiuti sono preparati in modo da poter essere reimpiegati senza altro pretrattamento. Particolarmente adatti a questa tipologia di trattamento sono i rifiuti ingombranti, i rifiuti di apparecchiature elettriche ed elettroniche, gli abiti usati. Nel proseguo, l’attenzione sarà rivolta ai rifiuti di apparecchiature elettriche ed elettroniche, per i quali sono già attive sul territorio europeo imprese appartenenti a reti per la preparazione al riutilizzo e per i quali diventa cruciale il tema della previsione della vita utile e conseguentemente della definizione della più opportuna politica di revisione e di sostituzione dei componenti. Nasce così una nuova sfida e un nuovo ambito di applicazione per la teoria della affidabilità e per le competenze ad essa connesse, inclusa la capacità di definizione di standard consolidati. Cruciale è inoltre la loro integrazione con le metodologie per l’analisi del ciclo di vita dei prodotti. Nei paragrafi successivi, quindi, sarà presentata la recente specifica tecnica PAS 141:2011, definita nel Regno Unito per regolamentare la preparazione al riutilizzo di apparecchiature elettriche ed elettroniche, per arrivare poi a concentrarsi su recenti modelli per valutare la vita utile residua di apparecchiature elettriche ed elettroniche usate.


2014 - POST-CONSUMER TEXTILE WASTE RE-USE: MAIN STEPS OF A SUSTAINABLE PROCESS [Relazione in Atti di Convegno]
Gamberini, Rita; Galloni, Luca; Rimini, Bianca; Luppi, M.
abstract

The European Directive 2008/98/EC on Waste provides guidelines for ensuring sustainable waste management. Specifically, a hierarchy for ranking the available management options is established. Highest priority is given to waste prevention, followed by re-use and, only after that, recycling and recovery of materials, energy recovery through incineration and finally, disposal in landfills. However, even the second highest priority, reuse, is often overlooked in favor of recycling, given the existence of well-established technologies. In this paper, re-use of post-consumer textile waste is studied, by specifying the main steps supporting such a sustainable process and by outlining the magnitude of the expected impact. Finally, a case study is presented.


2013 - ALTERNATIVE REFILLING POLICIES FOR AN ASSEMBLY LINE MANAGED BY KANBANS [Relazione in Atti di Convegno]
Gamberini, Rita; Meli, M.; Galloni, Luca; Rimini, Bianca; Lolli, Francesco
abstract

Assembly lines managed by means of lean production philosophy are usually characterized by workstations with inline stock areas, supplied by means of items contained in a larger supermarket zone. Furthermore, inline components necessities are usually showed by means of the use of kanbans. In this work, the number of kanbans and the number of carriers serving the line are computed by means of Erlang-C approach, in order to minimize a total cost function obtained as the sum of an estimation of cost of inline stock and of cost of refilling operations. Specifically, the Erlang-C approach is adopted since assures fast re-design of the system when variations in input data occur. Finally, a real-life case study in a company manufacturing items for the automotive market field is presented in order to highlight the approach potentialities when alternative scenarios are studied.


2012 - ALTERNATIVE APPROACHES FOR OEE EVALUATION: SOME GUIDELINES DIRECTING THE CHOICE [Relazione in Atti di Convegno]
Gamberini, Rita; Galloni, Luca; Rimini, Bianca
abstract

The Overall Equipment Effectiveness (OEE) is a useful tool for evaluating the time that manufacturing resources spend on adding value operations and for idle or waste time, whose elimination or at least whose reduction is progressively recommended. In this paper, four alternative approaches for OEE evaluation are reviewed and commented on in order to guide practitioners in the choice preceding their adoption. Specifically, in accordance with data required for the computation and results assured by the implementation, a preferable operating field is suggested.


2012 - L'INDICE OEE PER L'ANALISI DELL'IMPATTO NELLA MANUTENZIONE PREVENTIVA [Articolo su rivista]
Gamberini, Rita; Galloni, Luca; Rimini, Bianca
abstract

La crescente attenzione verso le tematiche ambientali e la sicurezza degli operatori hanno portato recentemente le aziende a focalizzare la loro attenzione all’uso più efficace degli impianti di produzione e alla prevenzione dei guasti. Alla politica di gestione della ma-nutenzione "a guasto", cioè alla realizzazione degli interventi di manutenzione solo in se-guito a momenti di fermo, fa seguito lo svi-luppo di politiche di manutenzione preventiva, lo sviluppo di approcci di gestione degli interventi basati sulla analisi statistica del comportamento degli impianti, al fine di pre-vederne il malfunzionamento e quindi di anti-cipare le attività di manutenzione in periodi di fermo già schedulati. La manutenzione preventiva, tuttavia, richiede risorse per essere implementata in maniera efficiente, a causa della mole di dati necessa-ria per avere una affidabile previsione dei modi e dei tempi di guasto e per la loro suc-cessiva elaborazione. Ne consegue che stru-menti atti a selezionare gli interventi a mag-giore impatto sull'efficienza complessiva del sistema in analisi risultano particolarmente interessanti e attrattivi. Uno strumento a disposizione dei decision makers è l'indice OEE - Overall Equipment Effectiveness, fortemente influenzato dalle politiche di manutenzione preventiva implementabili in azienda. Tale legame costituisce il focus del paper.


2012 - RE-DESIGNING MANUFACTURING AREAS DEDICATED TO HEAVY AND VOLUMINOUS PRODUCTS [Relazione in Atti di Convegno]
Gamberini, Rita; Bicchierini, E.; Lolli, Francesco; Rimini, Bianca; Regattieri, A.; Galloni, Luca
abstract

The Assembly Line Balancing Problem (ALBP) consists in assigning tasks to operators engaged on a line in such a way that the final item is produced according to a pre-determined production rate and by optimizing pre-defined objective functions. In the literature, a wide range of algorithms claiming to solve ALBP are found, however almost all of them consider this problem from a mathematical standpoint, thus disregarding details which are useful for ensuring the correct implementation of proposed solutions in real-life environments. Authors have gradually narrowed the gap between theory and practice by introducing stochastic operating times when manual operations are executed, or by describing more and more complex versions of the problem, usually known by the term GALBP (Generalized Assembly Line Balancing Problem), where a wide variety of objective functions and constraints are managed. By researching such an area, this paper will investigate the case of redesigning a manufacturing area dedicated to the production of heavy and voluminous items by highlighting the characteristics and peculiarities of the problem. Finally, a real-life case study is solved.


2011 - DESIGN AND EXPERIMENTAL ANALYSIS OF A PROTOTYPE WATERJET FACILITY FOR CATHODE RAY TUBE CUTTING: EVIDENCE FROM A CASE STUDY [Articolo su rivista]
Gamberini, Rita; Rimini, Bianca; Galloni, Luca; Baroni, A.
abstract

Cathode Ray Tubes (CRTs) adopted in TV sets and computer monitors represent a consistent portion of Waste Electrical and Electronic Equipment (WEEE). In comparison with the recycling of WEEE such as refrigerators or washing machines, the recovery process for CRT containing devices is very difficult. CRTs are composed of four types of glass (panel, funnel, neck and frit seal) with different compositions. Furthermore, dangerous substances are contained within (i.e. lead, barium, strontium and fluorescent dust). Hence, the need to define robust processes for the design and implementation of efficient facilities for CRT cutting arises. This work describes steps guiding the design and the experimental optimal setting of a prototype facility for water-jet cutting of CRTs, in order to obtain recyclable high quality glass. Initially, a version of the cutting facility with manual movement of the cutting tool is set, in order to evaluate expectable cutting results. Subsequently, a detailed setting of automated movement of the cutting tool is carried out, in order to improve the quality of obtainable glass. As a consequence, a water-jet cutting facility which guarantees the cutting of high quality CRTs is finally set and a prototype is implemented.


2011 - PROJECT MANAGEMENT IN THE FIELD OF UNDERGROUND WASTE COLLECTION SYSTEMS: DESIGN PRODUCTION AND INSTALLATION OF A CUSTOMIZED ITEM [Relazione in Atti di Convegno]
Rimini, Bianca; Gamberini, Rita; Grassi, Andrea; Galloni, Luca; DE ROSA, A.; Reggiani, E.
abstract

Waste collection is a problem frequently attracting the interest of both academics and practitioners due to a continuously increasing number of laws addressing its efficiency and effects on humans and the environment when inefficiencies occur. In recent years, interesting results have been achieved through the use of innovative underground collection systems. Main expected effects are connected with improvements in pollutant and noise emissions during waste collection and transport, low obstruction to traffic during waste collection, small space requirement for collecting bins. Nevertheless, the design, production and installation process for these underground systems still remains a crucial aspect, given the strict deadlines that must be respected. Difficulties arise when customizations are required. Hence, project management is a key issue for ensuring expected results in terms of time, costs and perceived quality. In this paper, steps characterising project management in the field of underground waste collection systems, especially focusing on customised items, is analysed. Data obtained in a case study is commented on.


2010 - FAILURE ANALYSIS AND ENVIRONMENTAL IMPACT ASSESSMENT: A CASE STUDY IN THE FIELD OF WEEE TREATMENT [Relazione in Atti di Convegno]
Gamberini, Rita; Rimini, Bianca; Galloni, Luca; Baroni, A.
abstract

The treatment of Waste Electrical and Electronic Equipment (WEEE) is a topic of interest for researchers and practitioners due to directives and laws addressing Electrical and Electronic Equipment (EEE) end of life management along with the necesity of executing optimal management in order to assure profit to companies operating in such a field. Nevertheless, only recent contributions have proposed technologies and operative procedures for WEEE treatment. As a consequence wide data bases concerning occuring failures are rare. In this paper data concerning failures occuring in a WEEE treatment plant operating in Modena (Italy) are collected for a period nine months. Specifically, technologies and operative procedures for the treatment of Cathode Ray Tube (CRT) containing devices (i.e. televisions and computer monitors) and refrigerating devices are studied. Finally, corrective actions and modifications in adopted facilities and operative procedures are proposed, by supporting the study with the assessment of the environmetal impact associated with the presence or the absence of the main failures.


2010 - TRADITIONAL BULKY-BINS FOR WASTE COLLECTION AND UNDERGROUND SYSTEMS: TECHNICAL, ECONOMICAL AND ENVIRONMENTAL ANALYSIS [Relazione in Atti di Convegno]
Gamberini, Rita; Galloni, Luca; Paese, S.; Rimini, Bianca
abstract

Waste collection is a problem recently involving researchers and practitioners. In order to address the adoption of well performing solutions, the necessity of technically and economically evaluating alternative waste management systems arises. Furthermore, the analysis of the effect following their adoption attracts interests, specifically in the field of sustainable development, due to both an increasing number of laws and directives directing the computation of the impacts on humans and the environment along with the increasing environmentally-consciousness of consumers. In this paper a user-friendly methodology that compares waste collection systems is described. Specifically, technical, economical and environmental performance indexes are evaluated (such as: pollutant emissions during waste transport and collection, noise during waste transport and collection, obstructions to traffic during collection, visual impact and space of bins, costs). Each aspect is qualitatively and quantitatively defined. An operative tool is created, implementing the described approach. Finally a case study is analysed, in order to demonstrate the effectiveness of the proposed approach. Specifically, traditional bulky-bins and innovative underground collection systems are compared.


2009 - EVALUATION AND COMPARISON OF WASTE COLLECTION SERVICES [Relazione in Atti di Convegno]
Gamberini, Rita; Galloni, Luca; Rimini, Bianca; Beltrami, F.; Ori, M.
abstract

Waste collection services are usually executed by companies who win a public offer published by communities. Hence, the necessity of evaluating and comparing different methodologies for executing the services arises. Nevertheless, input data (i.e. the amount and the frequency of conferred waste, approaches adopted for service design, the service level satisfying community citizens) are often uncertain, as are the performance indexes strictly related with them. Alternatively, a comparison of output data, featuring the proposed services, can be carried out, in order to address future decisions.In this paper a monitoring scheme is proposed, in order to define data that need to be traced, along with results that can be obtained. Finally, a case study is analysed, in order to support the applicability and the effectiveness of the introduced approach.