The student Iñigo Ezpeleta Lascurain obtained an OUTSTANDING qualification with 'CUM LAUDE’ mention

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The student Iñigo Ezpeleta Lascurain obtained an OUTSTANDING qualification with 'CUM LAUDE’ mention

THESIS

The student Iñigo Ezpeleta Lascurain obtained an OUTSTANDING qualification with 'CUM LAUDE’ mention

2022·07·26

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Thesis title: "Metodología de diseño para montaje y mantenimiento de productos industriales considerando su ciclo de vida."

Court:

  • Court: Francisco de Asís Ortega Fernández (Universidad de Oviedo)
  • Vocal: Ion Iriarte Azpiazu (Mondragon Unibertsitatea)
  • Vocal: Inge Isasa Gabilondo (ORONA EIC)
  • Vocal: José Ramón Andrés Díaz (Universidad de Málaga)
  • Secretary: Jose Alberto Eguren Eguiguren (Mondragon Unibertsitatea)

Abstract:

Design for Assembly (DfA) and Design for Maintainability (DfMt) methodologies, both framed within the DfX methodologies, try to help designers to consider both characteristics during the initial phases of the product design process. In this way, they manage to develop products that are optimised from both points of view. These methodologies, however, do not consider either the product life cycle or the first three phases of product development: i) specifications, ii) conceptual design and iii) detailed design.

In this research project, four methodologies are developed to solve this problem. Two design for assembly methodologies (DfA-SPDP and OSIA), a design for maintainability methodology (MIM-PL) and a methodology for gathering the needs of designers in the areas of assembly and maintainability (ECPI).

Design for Assembly Supporting Product Development Phases (DfA-SPDP) methodology is developed to help designers consider assembly during the development of products that will later be assembled in controlled environments. The methodology supports designers during the first three phases of a new product launch. DfA-SPDP is based on four DfA methodologies (Boothroyd-Dewhurst, Hitachi, Lucas and Modified Westinghouse) and considers the needs of the designers during these phases. DfA-SPDP also takes into consideration the life cycle of products through eight aspects to assist in the transition to a circular economy. The methodology is validated through four case studies, two at the academic level and two in the company Orona EIC.

On Site Installation Analysis (OSIA) methodology is developed to help designers consider the assembly of large and heavy parts during the development of products that will later be assembled in the field or on site, where environmental conditions are changeable. To this end, OSIA is based on four pillars: i) the SMED methodology, ii) a generic DfA process, iii) standard time estimates for assembly operations and, iv) needs/specifications identified through the development teams responsible for product assemblability. OSIA takes into consideration the products life cycle through eight aspects that can help in the transition towards a circular economy. The methodology is validated in the installation of an Orona brand lift on site.

Methodology for Improving Maintainability over the Product Lifecycle (MIM-PL) methodology is developed to help designers consider maintainability during the development of a new product. To do so, MIM-PL is based on three foundations: i) maintainability specifications; ii) Pugh's selection method; and iii) needs or specifications identified through the development teams responsible for product maintainability. MIM-PL takes into account the life cycle of products through sixteen aspects that help in the transition towards a circular economy. The methodology is validated in its use phase in the case of a conventional lathe.

Employee Centred Process Improvement (ECPI) methodology is developed under the Human Centred Design (HCD) design philosophy and allows the detailed mapping of a company's processes taking into account the people involved. ECPI is based on three foundations: i) six HCD methods (document-based method, expert interview, employee map, customer journey map, focus group, questionnaires), ii) UNE-EN ISO 9241-210 (2019) and UNE-EN ISO 9241-220 (2019) standards and, iii) PDCA or Deming cycle. After the implementation of the methodology, opportunities for process improvement and the needs of the people involved are identified. The methodology is validated in a process of the company Orona EIC.