* Collective innovation * Open source product development * Complex networks * Agent-based modeling * Computational design * Robust design and uncertainty management * Integrated products and materials design Address: School of Mechanical Engineering Purdue University West Lafayette, IN 47906
Traditional product development efforts are primarily based on well-structured and hierarchical p... more Traditional product development efforts are primarily based on well-structured and hierarchical product development processes. The products are systematically decomposed into subsystems that are designed by dedicated teams with well-defined information flows. Over the last 2 decades, a new product development approach called mass-collaborative product development (MCPD) has emerged.
Résumé/Abstract Information representation in engineering design is currently dominated by top―do... more Résumé/Abstract Information representation in engineering design is currently dominated by top―down approaches such as taxonomies and ontologies. While top-down approaches provide support for computational reasoning, they are primarily limited due to their static nature, limited scope, and developer-centric focus. Bottom-up approaches, such asfolksonomies, are emerging as means to address the limitations of top-down approaches.
abstract: We present a class of problems within engineering design where the design of complex sy... more abstract: We present a class of problems within engineering design where the design of complex systems is not directly controlled by designers but emerges from the self-interested decisions of stakeholders. These problems are referred to as equilibrium design problems. While such problems have been common in economics and social sciences, they have not yet been addressed in engineering design research.
Designers are continuously challenged to manage complexity in embodiment designprocesses, in the ... more Designers are continuously challenged to manage complexity in embodiment designprocesses, in the context of integrated product and materials design. In order to manage complexity in design processes, a systematic strategy to embodiment design-process generation and selection is presented in this paper. The strategy is based on a value-ofinformation-based Process Performance Indicator.
Designers are continuously challenged to manage complexity in embodiment designprocesses, in the ... more Designers are continuously challenged to manage complexity in embodiment designprocesses, in the context of integrated product and materials design. In order to manage complexity in design processes, a systematic strategy to embodiment design-process generation and selection is presented in this paper. The strategy is based on a value-ofinformation-based Process Performance Indicator.
Understanding customers-in-context for actual product realization processes (PRPs) has become a p... more Understanding customers-in-context for actual product realization processes (PRPs) has become a pressing need since a large and rapidly increasing share of complaints in the field cannot be attributed to violation of products' technical specifications. While addressing this problem requires a multidisciplinary approach, more studies in the engineering design domain have of late been proposed on engineering contextual and emotional values in product design.
In this paper, we introduce the construct of microstructure-mediated design of material and produ... more In this paper, we introduce the construct of microstructure-mediated design of material and product. The microstructure of the material is controlled within feasible bounds to achieve the performance targets of the product. We illustrate the efficacy of this construct via the integrated robust design of a submersible and Al-based matrix composites. The integrated design is carried out using an Inductive Design Exploration Method (IDEM) that facilitates robust design in the presence of model structure uncertainty (MSU).
Designers are continuously challenged to manage complexity in embodiment designprocesses, in the ... more Designers are continuously challenged to manage complexity in embodiment designprocesses, in the context of integrated product and materials design. In order to manage complexity in design processes, a systematic strategy to embodiment design-process generation and selection is presented in this paper. The strategy is based on a value-ofinformation-based Process Performance Indicator.
The motivating question for this article is:'How should a system level designer allocate resource... more The motivating question for this article is:'How should a system level designer allocate resources for auxiliary simulation model refinement while satisfying system level design objectives and ensuring robust process requirements in multiscale systems? Our approach consists of integrating:(i) a robust design method for multiscale systems (ii) an information economics based approach for quantifying the cost-benefit trade-off for mitigating uncertainty in simulation models.
Within the engineering design literature, dependency modelling techniques have been used to model... more Within the engineering design literature, dependency modelling techniques have been used to model the structure and evolution of products. While a product's structure has significant implications on the product's quality and the complexity of product development process, recent studies within organisational science suggest that an organisation's structure also has a direct impact on the product structures.
Abstract In this paper, an analysis of product structures in open source software (OSS) at both p... more Abstract In this paper, an analysis of product structures in open source software (OSS) at both product level and module level is presented. At the product level, the product structures are modeled as complex networks, and the evolutionary characteristics of product structures are analyzed by using network analysis metrics. At the module level, linking mechanisms, which describe how a module is attached with other modules, are proposed.
Abstract Designing materials for targeted performance requirements as required in Integrated Comp... more Abstract Designing materials for targeted performance requirements as required in Integrated Computational Materials Engineering (ICME) demands a combined strategy of bottom-up and top-down modeling and simulation which treats various levels of hierarchical material structure as a mathematical representation, with infusion of systems engineering and informatics to deal with differing model degrees of freedom and uncertainty.
Modular, utable, decision-centric templates have been used as a means to model design processes c... more Modular, utable, decision-centric templates have been used as a means to model design processes computationally. The use of decision templates has been limited so far to decision making by a single stakeholder. Templates for multiple stakeholders, making concurrent decisions regarding the design of a product have not been developed.
Abstract This paper presents an approach for generating surrogate bipartite networks with varying... more Abstract This paper presents an approach for generating surrogate bipartite networks with varying sizes based on degree distributions of given bipartite networks. The resulting surrogate networks can be used for problems such as design of algorithms for similarity search, community detection and clustering, and recommender systems. The primary advantage of using smaller surrogate networks over original large-scale networks is the reduction in associated computational expense.
A scientific meeting of the Section was held in the Queen's University of Belfast on Thursday and... more A scientific meeting of the Section was held in the Queen's University of Belfast on Thursday and Friday, 27th and 28th June 1996. The meeting was hosted jointly by the Departments of Physiology and Anaesthetics. The local organisers were Professors NG McHale and JP Fee. The meeting was attended by over 120 Fellows and Guests and the abstracts of 41 Communications were accepted for publication in the Journal subject to minor editorial change in a few cases.
Traditionally, design engineers and materials scientists have adopted very different approaches. ... more Traditionally, design engineers and materials scientists have adopted very different approaches. Natural scientists are concerned with building a body of knowledge about objects or phenomena—their characteristics, behavior, and interactions. Designers, on the other hand, are concerned with how to synthesize and realize artifacts that have desired properties or functionality and fulfill a purpose or attain a goal [1].
Traditional product development efforts are primarily based on well-structured and hierarchical p... more Traditional product development efforts are primarily based on well-structured and hierarchical product development processes. The products are systematically decomposed into subsystems that are designed by dedicated teams with well-defined information flows. Over the last 2 decades, a new product development approach called mass-collaborative product development (MCPD) has emerged.
Résumé/Abstract Information representation in engineering design is currently dominated by top―do... more Résumé/Abstract Information representation in engineering design is currently dominated by top―down approaches such as taxonomies and ontologies. While top-down approaches provide support for computational reasoning, they are primarily limited due to their static nature, limited scope, and developer-centric focus. Bottom-up approaches, such asfolksonomies, are emerging as means to address the limitations of top-down approaches.
abstract: We present a class of problems within engineering design where the design of complex sy... more abstract: We present a class of problems within engineering design where the design of complex systems is not directly controlled by designers but emerges from the self-interested decisions of stakeholders. These problems are referred to as equilibrium design problems. While such problems have been common in economics and social sciences, they have not yet been addressed in engineering design research.
Designers are continuously challenged to manage complexity in embodiment designprocesses, in the ... more Designers are continuously challenged to manage complexity in embodiment designprocesses, in the context of integrated product and materials design. In order to manage complexity in design processes, a systematic strategy to embodiment design-process generation and selection is presented in this paper. The strategy is based on a value-ofinformation-based Process Performance Indicator.
Designers are continuously challenged to manage complexity in embodiment designprocesses, in the ... more Designers are continuously challenged to manage complexity in embodiment designprocesses, in the context of integrated product and materials design. In order to manage complexity in design processes, a systematic strategy to embodiment design-process generation and selection is presented in this paper. The strategy is based on a value-ofinformation-based Process Performance Indicator.
Understanding customers-in-context for actual product realization processes (PRPs) has become a p... more Understanding customers-in-context for actual product realization processes (PRPs) has become a pressing need since a large and rapidly increasing share of complaints in the field cannot be attributed to violation of products' technical specifications. While addressing this problem requires a multidisciplinary approach, more studies in the engineering design domain have of late been proposed on engineering contextual and emotional values in product design.
In this paper, we introduce the construct of microstructure-mediated design of material and produ... more In this paper, we introduce the construct of microstructure-mediated design of material and product. The microstructure of the material is controlled within feasible bounds to achieve the performance targets of the product. We illustrate the efficacy of this construct via the integrated robust design of a submersible and Al-based matrix composites. The integrated design is carried out using an Inductive Design Exploration Method (IDEM) that facilitates robust design in the presence of model structure uncertainty (MSU).
Designers are continuously challenged to manage complexity in embodiment designprocesses, in the ... more Designers are continuously challenged to manage complexity in embodiment designprocesses, in the context of integrated product and materials design. In order to manage complexity in design processes, a systematic strategy to embodiment design-process generation and selection is presented in this paper. The strategy is based on a value-ofinformation-based Process Performance Indicator.
The motivating question for this article is:'How should a system level designer allocate resource... more The motivating question for this article is:'How should a system level designer allocate resources for auxiliary simulation model refinement while satisfying system level design objectives and ensuring robust process requirements in multiscale systems? Our approach consists of integrating:(i) a robust design method for multiscale systems (ii) an information economics based approach for quantifying the cost-benefit trade-off for mitigating uncertainty in simulation models.
Within the engineering design literature, dependency modelling techniques have been used to model... more Within the engineering design literature, dependency modelling techniques have been used to model the structure and evolution of products. While a product's structure has significant implications on the product's quality and the complexity of product development process, recent studies within organisational science suggest that an organisation's structure also has a direct impact on the product structures.
Abstract In this paper, an analysis of product structures in open source software (OSS) at both p... more Abstract In this paper, an analysis of product structures in open source software (OSS) at both product level and module level is presented. At the product level, the product structures are modeled as complex networks, and the evolutionary characteristics of product structures are analyzed by using network analysis metrics. At the module level, linking mechanisms, which describe how a module is attached with other modules, are proposed.
Abstract Designing materials for targeted performance requirements as required in Integrated Comp... more Abstract Designing materials for targeted performance requirements as required in Integrated Computational Materials Engineering (ICME) demands a combined strategy of bottom-up and top-down modeling and simulation which treats various levels of hierarchical material structure as a mathematical representation, with infusion of systems engineering and informatics to deal with differing model degrees of freedom and uncertainty.
Modular, utable, decision-centric templates have been used as a means to model design processes c... more Modular, utable, decision-centric templates have been used as a means to model design processes computationally. The use of decision templates has been limited so far to decision making by a single stakeholder. Templates for multiple stakeholders, making concurrent decisions regarding the design of a product have not been developed.
Abstract This paper presents an approach for generating surrogate bipartite networks with varying... more Abstract This paper presents an approach for generating surrogate bipartite networks with varying sizes based on degree distributions of given bipartite networks. The resulting surrogate networks can be used for problems such as design of algorithms for similarity search, community detection and clustering, and recommender systems. The primary advantage of using smaller surrogate networks over original large-scale networks is the reduction in associated computational expense.
A scientific meeting of the Section was held in the Queen's University of Belfast on Thursday and... more A scientific meeting of the Section was held in the Queen's University of Belfast on Thursday and Friday, 27th and 28th June 1996. The meeting was hosted jointly by the Departments of Physiology and Anaesthetics. The local organisers were Professors NG McHale and JP Fee. The meeting was attended by over 120 Fellows and Guests and the abstracts of 41 Communications were accepted for publication in the Journal subject to minor editorial change in a few cases.
Traditionally, design engineers and materials scientists have adopted very different approaches. ... more Traditionally, design engineers and materials scientists have adopted very different approaches. Natural scientists are concerned with building a body of knowledge about objects or phenomena—their characteristics, behavior, and interactions. Designers, on the other hand, are concerned with how to synthesize and realize artifacts that have desired properties or functionality and fulfill a purpose or attain a goal [1].
Uploads