A diagnostic service tool using FMEA

The use of Failure Modes and Effects Analysis (FMEA) as the basis for a Diagnostic Service Tool (DST) is discussed in the context of Design for Service. Designers are assisted in developing diagnostic service tools early in the design process rather than this being a post-production activity. A system for computerised interactive FMEA generation from FMEA elements has been created by enhancing an existing object-oriented FMEA model to generate the FMEA elements and Diagnostic FMEA. The use of an object-oriented FMEA environment and FMEA object libraries promotes the reuse of information and increases data availability for diagnostic tool development. The Diagnostic Service Tool (DST) uses existing failure mode data to determine further characteristics of the failure of parts. The prototype software has been evaluated in a field service application using four automatic transmission problem cases. There was significant difference in repair times between the use of conventional repair manuals and DST. The research has demonstrated that the prototype software is successful in providing effective field service tools and suggests a method of providing feedback to the designer. In this way knowledge sharing between engineering and field service can be continuous and provide a significant improvement in product development. The approach has validity across many domains but has so far only been evaluated in the context of automotive systems and in particular automatic transmissions. Application in other areas would require substantial efforts in knowledge acquisition but the same general methods would be used

A diagnostic service tool using FMEA

This article was published in the International Journal of Computer Integrated Manufacturing [© Taylor & Francis] and the definitive version is available at: http://dx.doi.org/10.1080/0951192X.2010.486007The use of Failure Modes and Effects Analysis (FMEA) as the basis for a Diagnostic Service Tool (DST) is discussed in the context of Design for Service. Designers are assisted in developing diagnostic service tools early in the design process rather than this being a post-production activity. A system for computerised interactive FMEA generation from FMEA elements has been created by enhancing an existing object-oriented FMEA model to generate the FMEA elements and Diagnostic FMEA. The use of an object-oriented FMEA environment and FMEA object libraries promotes the reuse of information and increases data availability for diagnostic tool development. The Diagnostic Service Tool (DST) uses existing failure mode data to determine further characteristics of the failure of parts. The prototype software has been evaluated in a field service application using four automatic transmission problem cases. There was significant difference in repair times between the use of conventional repair manuals and DST. The research has demonstrated that the prototype software is successful in providing effective field service tools and suggests a method of providing feedback to the designer. In this way knowledge sharing between engineering and field service can be continuous and provide a significant improvement in product development. The approach has validity across many domains but has so far only been evaluated in the context of automotive systems and in particular automatic transmissions. Application in other areas would require substantial efforts in knowledge acquisition but the same general methods would be used

Process-oriented risk assessment methodology for manufacturing process evaluation

A process-oriented risk assessment methodology is proposed. Risks involved in a process and the corresponding risk factors are identified through an objectives-oriented risk identification approach and evaluated qualitatively in the Process FMEA. The critical risks of the PFMEA are then incorporated in the process model for further quantitative analysis employing simulation technique. Using the proposed methodology as a decision-making tool, alternative scenarios are developed and evaluated against the developed risk measures. The risk measures values issues out of simulation are normalized and aggregated to form a global risk indicator to rank the alternative processes on the basis of desirability. The methodology is illustrated with a case study issued from parts manufacturing but is applicable to a wide range of other processes

Análisis y propuesta de mejora en proceso de facturación de proyectos dentro del área de desarrollo de empresa automotriz

Este proyecto propone una optimización del proceso de facturación en proyecto de una unidad de negocio del área de desarrollo de una empresa automotriz con la metodología de seis sigma (DMAIC)

Análise de riscos e efeitos no projeto informacional e conceitual: uma abordagem ontológica.

Este trabalho apresenta em seu início uma revisão histórica das publicações sobre FMEA enfatizando os problemas e soluções apresentadas na literatura com a finalidade de identificar como a metodologia evolui ao longo do tempo. A análise das publicações mostrou que a FMEA, apesar de sempre citada como o primeiro dos métodos de avaliação de riscos, é executada por exigências contratuais ou normativas, normalmente realizado ao final do processo, inclusive no desenvolvimento de novos produtos, com um time comprometido com o cumprimento de prazos e não com o resultado da análise, além das dificuldades relativas a classificação dos riscos. Permitiu também entender que o processo de realização da FMEA para identificar os modos de falha quase não sofreu alterações ao longo do tempo. Desta forma, o presente trabalho propõe uma nova abordagem para a Análise de Modo e Efeitos de Falha, mais visual e interativa para possibilitar uma mudança na forma integrar a equipe, melhorando o processo de geração de ideias, estimulando a reflexão e a identificação de novos caminhos para a interpretação dos modos de falha, aqui denominada de Análise de Modos de Falha canvas ou FMEA canvas. A abordagem pretende suprir a necessidade de identificar modos de falha na fase informacional do processo de desenvolvimento de produtos, principalmente na área médica, onde os produtos se tornaram muito complexos e caros, justificando este trabalho. O texto mostra como utilizar o canvas e os resultados de uma aplicação utilizando o método de Soft System Methodology em uma empresa que desenvolve produtos médicos. Os resultados apontados pela empresa que participou da avaliação do FMEA canvas mostraram que o formato seria bem-sucedido nas fases iniciais do processo de desenvolvimento de produtos, pois permite a integração do time de desenvolvimento inclusive com a equipe gerencial, apresenta-se mais compreensível, dinâmico e colaborativo e que a utilização de notas autoadesivas trouxe flexibilidade ao andamento das discussões, estimulando a criatividade, a revisão contínua do andamento da resolução dos modos de falha e a facilidade na recuperação das informações ao longo do processo, além de outras vantagens quando utilizada dentro dos limites para os quais foi planejado

Service knowledge capture and re-use to support product design

A significant change is taking place in manufacturing company strategies around the globe. With new monitoring and service methods, new opportunities of product use and service provision emerge. The manufacturing companies once focused on mere product manufacture, now have started to provide ‘systemic solutions’, i.e. products combined with service packages, which are often referred to as Product-Service Systems (PSS). Currently, there is not a well-established feedback mechanism between service and design. The aim of this research is to develop a methodology to capture, represent, and re-use service knowledge to support product design. For the accomplishment of this aim an extensive literature review of the related themes to the research area took place. It was found that the feedback from service to design is fundamental for the enhancement of product performance; however, the existing literature in this area is not adequate. The industrial investigation led to the realisation that there is not an established mechanism in place to show how service knowledge (SK) can be used by designers. An in- depth investigation took place with the collaboration of, in total, four UK manufacturing companies. The author studied both the conceptual and detailed design, focusing on the design requirements (DR) and the design/service features (DF/SF) respectively. The first step was the capture of SK and its representation using Protégé software. Following this, at the conceptual design stage, SK can be re-used through the DR-SK tool. The two main purposes of the tool are the knowledge retrieval by designers, and the identification of gaps in SK. At the detailed design stage, designers can access SK through the DF-SK tool, and the developed knowledge templates. The SKaD framework was created, as a result of the amalgamation among the SKaD methodology, the knowledge templates, and the tools developed to link SK and DR, SF, and DF. Conclusively, the framework was applied on case studies within the pump manufacturing and aerospace industries, and its purpose (to aid designers accessing and re-using SK) was validated by experts within the collaborating organisations. As a result of this research’s findings, the service personnel can capture SK in a structured manner, which can then be re- used by product designers at both the conceptual and detailed design stage.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

Service knowledge capture and re-use to support product design

A significant change is taking place in manufacturing company strategies around the globe. With new monitoring and service methods, new opportunities of product use and service provision emerge. The manufacturing companies once focused on mere product manufacture, now have started to provide ‘systemic solutions’, i.e. products combined with service packages, which are often referred to as Product-Service Systems (PSS). Currently, there is not a well-established feedback mechanism between service and design. The aim of this research is to develop a methodology to capture, represent, and re-use service knowledge to support product design. For the accomplishment of this aim an extensive literature review of the related themes to the research area took place. It was found that the feedback from service to design is fundamental for the enhancement of product performance; however, the existing literature in this area is not adequate. The industrial investigation led to the realisation that there is not an established mechanism in place to show how service knowledge (SK) can be used by designers. An in- depth investigation took place with the collaboration of, in total, four UK manufacturing companies. The author studied both the conceptual and detailed design, focusing on the design requirements (DR) and the design/service features (DF/SF) respectively. The first step was the capture of SK and its representation using Protégé software. Following this, at the conceptual design stage, SK can be re-used through the DR-SK tool. The two main purposes of the tool are the knowledge retrieval by designers, and the identification of gaps in SK. At the detailed design stage, designers can access SK through the DF-SK tool, and the developed knowledge templates. The SKaD framework was created, as a result of the amalgamation among the SKaD methodology, the knowledge templates, and the tools developed to link SK and DR, SF, and DF. Conclusively, the framework was applied on case studies within the pump manufacturing and aerospace industries, and its purpose (to aid designers accessing and re-using SK) was validated by experts within the collaborating organisations. As a result of this research’s findings, the service personnel can capture SK in a structured manner, which can then be re- used by product designers at both the conceptual and detailed design stage.EThOS - Electronic Theses Online ServiceGBUnited Kingdo