Virtual integration with a multi-criteria partner selection model for the multi-echelon manufacturing system

Journal of Engineering Design

Eres

Scanlan

2016

The work presented culminates in the development of a value model used in the conceptual phase of engineering design, with the preferences of more than one stakeholder addressed in the Multi-Stakeholder and Multi-Objective Optimization. The "value" of proposed solutions is assessed in an objective way both from performance and economic perspectives, while the optimal solution is identified based on the needs of the user and manufacturer, as major stakeholders. This novel value model for consistent value assessment synthesizes the multiattribute value/utility analysis with the Game Theory and Analytic Hierarchy Process (AHP) assessment methodologies. During the multi-criteria decision analysis, the deficiencies, introduced by the arbitrary numerical scales used in AHP to convert the linguistic preferences of the user between the various attributes to numerical values, are resolved. The preferences of a group of experts/decision makers are synthesized in the group value model through the extraction of weighting factors from the individuals' AHP pairwise comparison matrices. Moreover, Game Theory is used in a hybrid cooperative/bargaining, non-cooperative non-zero sum game between the stakeholders as players, identifying the optimal design through the simultaneous employment of the Nash bargaining solution and the Nash equilibrium.

Section: Analytic Hierarchy Processmentioning

confidence: 93%

Value modelling for multi-stakeholder and multi-objective optimisation in engineering design

Journal of Engineering Design

Eres

Scanlan

2016

“…It is, however, a useful tool to define the problem, consider a large number of attributes, communicate value, identify differences and similarities between various stakeholders' points of view and aggregate them [133], [134], [135], [136], [137], [138]. Nevertheless, it is the synthesis of MAUT with AHP that provides significant benefits in the preferences' assessment, as suggested by Dyer [131], and has been successfully demonstrated in several applications, [139], [140], [141], [142], [143], [144], [145]. The application of the NPV has been demonstrated by Dragos et al [147] for the evaluation of a spacecraft, by Nickel [148] in the evaluation of a Transportation domain project, by Castagne et al [97] within a aircraft fuselage panels VDD framework, by Cheung et al [96] for the design of a propulsion system and in the value modelling of a space system by [99].…”

Section: Analytic Hierarchy Processmentioning

confidence: 99%

Development and application of a value driven design assessment framework to an unmanned air system design

2018 Advances in Science and Engineering Technology International Conferences (ASET)

2018

The work presented in this thesis concerns the development of a value driven engineering design assessment framework and its application to the conceptual design of an Unmanned Air System (UAS) to be utilised in a defence application. This research demonstrates the implementation of the value driven design philosophy in this framework, identifying value enhancing designs, with value not converted to monetary worth and as perceived by all stakeholders involved. A multi-criteria and multi-stakeholder decision making analysis is adopted to address their preferences as well as to study their interacting strategic choices. The ultimate objective of this framework is to convert engineering design to a decision making analysis with multiple conflicting objectives of multiple stakeholders considered.This framework is capable of providing a product definition and estimation of all performance and cost related attributes for the conceptual phase. However, instead of pertaining to a single aircraft concept, a broad range of combinations of UAS configurations and geometries is generated by systematically searching alternative concepts and design configurations through a novel parameterization of the aircraft geometric topologies.Value, related to the designed system's capabilities or performance and lifecycle cost, is used to compare different alternatives in the decision making of engineering design through the appropriate value model. Following a valuefocused approach, a novel multi-attribute value model is introduced for objectively capturing the stakeholder's preferences and expectations. Furthermore, a more sophisticated multi-attribute utility model, based on standard Multi-attribute Utility Theory, is employed in the evaluation.Game Theory as an optimization tool is used to develop a novel hybrid cooperative/non-cooperative non-zero sum, complete information game among all involved stakeholders as players. This game successfully addresses the stakeholders' preferences in a functional outcome-focused way, resolving the high indeterminacy of the alternative designs through a cooperative game. At the same time, their strategic interactions are captured in a process-focused non-cooperative game. Hence, the optimal design is identified through the simultaneous employment of the Nash bargaining solution and the Nash equilibrium.i

“…It is however used for defining the problem, considering a large number of attributes, communicating value, identifying differences and similarities between various stakeholders' points of view and aggregating them as presented in [28], [39], and [8]. Nevertheless, it is the synthesis of MAUT with AHP that offers significant benefits in the preferences' assessment, as suggested by Dyer [14], and corroborated by several applications [40], [13], [42].…”

Section: Analytic Hierarchy Processmentioning

confidence: 99%

Value driven conceptual design of unmanned air system for a defence application

Eres

Scanlan

2017

AOP

The work presented culminates in the development of a value driven conceptual design assessment framework for a small Unmanned Air System (UAS) to be utilized in a defence application. In the field of Multi-Disciplinary Design Optimisation, most recent systematic search has been devoted to fixed topology parametric geometries, pertaining to a single concept, with very little stress put on the optimization of variable topologies describing alternative design concepts. The search is conducted in a highly novel manner, generating a broad range of combinations of UAS configurations and geometries by systematically searching alternative concepts and design configurations through the parameterization of the aircraft geometric topologies. Moreover, the "value" of proposed solutions is assessed in an objective way both from performance and economic perspectives, while the optimal solution is identified based on the user's needs after relaxing all of the design constraints. During the multi-criteria decision analysis, the quantification/conversion of the linguistic preferences of the user between the various attributes to numerical values has disclosed some deficiencies introduced by the unjustifiable numerical scales used in the Analytic Hierarchy Process (AHP) and a novel value model for consistent value assessment is introduced, synthesizing the AHP assessment methodologies with multi-attribute value-focused analysis.