33,017 research outputs found
Recommended from our members
Multiscale Design for Solid Freeform Fabrication
One of the advantages of solid freeform fabrication is the ability to fabricate complex
structures on multiple scales, from the macroscale features of an overall part to the
mesoscale topology of its internal architecture and even the microstructure or
composition of the constituent material. This manufacturing freedom poses the challenge
of designing across these scales, especially when a part with designed mesostructure is
part of a larger system with changing requirements that propagate across scales. A setbased multiscale design method is presented for coordinating design across scales and
reducing iterative redesign of SFF parts and their mesostructures. The method is applied
to design a miniature unmanned aerial vehicle system. The system is decomposed into
disciplinary subsystems and constituent parts, including wings with honeycomb
mesostructures that are topologically tailored for stiffness and strength and fabricated
with selective laser sintering. The application illustrates how the design of freeform parts
can be coordinated more efficiently with the design of parent systems.Mechanical Engineerin
Value Chain: From iDMU to Shopfloor Documentation of Aeronautical Assemblies
Competition in the aerospace manufacturing companies has led them
to continuously improve the efficiency of their processes from the conceptual
phase to the start of production and during operation phase, providing services to
clients. PLM (Product Lifecycle Management) is an end-to-end business solution
which aims to provide an environment of information about the product and
related processes available to the whole enterprise throughout the productâs lifecycle.
Airbus designs and industrializes aircrafts using Concurrent Engineering
methods since decades. The introduction of new PLM methods, procedures and
tools, and the need to improve processes efficiency and reduce time-to-market,
led Airbus to pursue the Collaborative Engineering method. Processes efficiency
is also impacted by the variety of systems existing within Airbus. Interoperability
rises as a solution to eliminate inefficiencies due to information exchange and
transformations and it also provides a way to discover and reuse existing information.
The ARIADNE project (Value chain: from iDMU to shopfloor documentation
of aeronautical assemblies) was launched to support the industrialization
process of an aerostructure by implementing the industrial Digital Mock-Up
(iDMU) concept in a Collaborative Engineering framework. Interoperability
becomes an important research workpackage in ARIADNE to exploit and reuse
the information contained in the iDMU and to create the shop floor documentation.
This paper presents the context, the conceptual approach, the methodology
adopted and preliminary results of the project
Multidisciplinary design optimization: An emerging new engineering discipline
This paper defines the Multidisciplinary Design Optimization (MDO) as a new field of research endeavor and as an aid in the design of engineering systems. It examines the MDO conceptual components in relation to each other and defines their functions
Connected Learning Journeys in Music Production Education
The field of music production education is a challenging one, exploring multiple creative, technical and entrepreneurial disciplines, including music composition, performance electronics, acoustics, musicology, project management and psychology. As a result, students take multiple âlearning journeysâ on their pathway towards becoming autonomous learners. This paper uniquely evaluates the journey of climbing Bloomâs cognitive domain in the field of music production and gives specific examples that validate teaching music production in higher education through multiple, connected ascents of the framework. Owing to the practical nature of music production, Kolbâs Experiential Learning Model is also considered as a recurring function that is necessary for climbing Bloomâs domain, in order to ensure that learners are equipped for employability and entrepreneurship on graduation. The authorsâ own experiences of higher education course delivery, design and development are also reflected upon with reference to Music Production pathways at both the University of Westminster (London, UK) and York St John University (York, UK)
Recommended from our members
Managing engineering design in complex supply chains
The trend towards organising design, development and manufacture via supply chains, rather than predominantly in-house, poses major challenges for design management. Procurement methods based on adversarial competitive tendering are generally unsuited to complex engineering products requiring strong design and development coordination.
Literature on âsupplier partnershipsâ has largely overlooked the implications for managing design and development. This paper reports the results of a major project that focuses upon this issue, concentrating on practical case studies â from British Rail, Netherlands Railways, Rolls Royce and British Coal â that involve the management of âdevolvedâ engineering design by large business organisations.
A spectrum of approaches from in-house to fully devolved design is described. It is concluded that there does not appear to be a single best approach for managing devolved design, but that appropriate approaches for an organisation depend on its location in the supply chain and its ability to manage organisational change
An assembly oriented design framework for product structure engineering and assembly sequence planning
The paper describes a novel framework for an assembly-oriented design (AOD) approach as a new functional product lifecycle management (PLM) strategy, by considering product design and assembly sequence planning phases concurrently. Integration issues of product life cycle into the product development process have received much attention over the last two decades, especially at the detailed design stage. The main objective of the research is to define assembly sequence into preliminary design stages by introducing and applying assembly process knowledge in order to provide an assembly context knowledge to support life-oriented product development process, particularly for product structuring. The proposed framework highlights a novel algorithm based on a mathematical model integrating boundary conditions related to DFA rules, engineering decisions for assembly sequence and the product structure definition. This framework has been implemented in a new system called PEGASUS considered as an AOD module for a PLM system. A case study of applying the framework to a catalytic-converter and diesel particulate filter sub-system, belonging to an exhaust system from an industrial automotive supplier, is introduced to illustrate the efficiency of the proposed AOD methodology
- âŠ