Integrated Design Concepts and Tools

Author(s):  
Nilesh Y. Jadhav
Author(s):  
Anant Chawla ◽  
Joshua D. Summers

Morphological charts are widely recognized tools in engineering design applications and research. However, a literature gap exists in instructing the representation and exploration of morphological charts. In this paper, an experiment is conducted to understand how morphological charts are explored and what impact functional arrangement has on it. The experiment consisted of two problem statements, each with five different functional arrangements: 1) Most to Least Important Function, 2) Least to Most Important Function, 3) Input to Output Function, 4) Output to Input Function, and 5) Random. Sixty-seven junior mechanical engineering students were provided a prepopulated morphological chart and asked to generate integrated design concepts. The generated concepts were analyzed to determine how frequently a given means is selected, how much of the chart is explored, what is the sequence of exploration, and finally the influence of function ordering on them. Experimental results indicate a tendency to focus more on the initial columns of the chart irrespective of functional order. Moreover, the Most-to-Least-Important functional order results in higher chances and uniformity of design space exploration.


2019 ◽  
Vol 141 (9) ◽  
Author(s):  
Anant Chawla ◽  
Joshua D. Summers

Although morphological charts are widely taught used tools in engineering design, little formal guidance is provided regarding their representation and exploration. Thus, an experiment was conducted to elucidate the influence of functional ordering on the exploration of morphological charts. Two design prompts were used, each with five different functional arrangements: (1) most-to-least important function, (2) least-to-most important function, (3) input-to-output function, (4) output-to-input function, and (5) Random. Sixty-seven junior mechanical engineering students were asked to generate integrated design concepts from prepopulated morphological charts for each design prompt. The concepts were analyzed to determine the frequency with which a given means was selected, how much of the chart was explored, the sequence of exploration, and the influence of function ordering. Results indicated a tendency to focus upon the initial columns of the chart irrespective of functional order. The most-to-least-important functional order resulted in higher chances and a uniformity of design space exploration.


2017 ◽  
Vol 28 (2) ◽  
pp. 282-298 ◽  
Author(s):  
Marco Beccali ◽  
Marina Bonomolo ◽  
Alessandra Galatioto ◽  
Emanuela Pulvirenti

Purpose The purpose of this paper is to address a project for lighting an old town in Italy. Its originality lies in the holistic approach that aims to fulfil several objectives. One is to reduce energy consumption by using efficient lamps and advanced control systems; the second one is to make the network viable and useful for many purposes by integrating ICT devices; the third one is to provide a new identity to the older part of the city by using new technologies and design concepts; while the last one is to ensure street and pedestrian safety according to codes and standards. Design/methodology/approach The plan of the city of Bagheria and the stock of luminaires of the city are analysed. A multidisciplinary approach has been adopted in order to: analyse the existing lighting infrastructure highlighting critical areas; design a new displacement and select typologies of luminaries able to provide proper light quality and distribution; propose an aesthetic solution and technical design for relevant historical building; and to include in the design process the concept of a new multifunctional pole. Together with an analysis of social benefits, an assessment of economic costs and benefits are discussed. Findings The project allows good energy savings, meets the standard requirements and gives a relevant and strategic improvement in social and environmental management of the city. Originality/value The work provides an example of integrated design of street lighting infrastructures for urban renovation in old cities in degraded environments.


Author(s):  
Praveen Kumare Gopalakrishnan ◽  
Helen Kain ◽  
Sogol Jahanbekam ◽  
Sara Behdad

This study proposes a graph partitioning method to facilitate the idea of physical integration proposed in Axiomatic Design. According to the physical integration concept, the design features should be integrated into a single physical part or a few parts with the aim of reducing the information content, given that the independence of functional requirements is still satisfied. However, no specific method is suggested in the literature for determining the optimal degree of physical integration of a design artifact. This is particularly important with the current advancement in Additive Manufacturing technologies. Since additive manufacturing allows physical elements to be integrated, new methods are needed to help designers evaluate the impact of the physical integration on the design success. The objective of this paper is to develop a framework for determining the best way that functional requirements can be assigned to different parts of a product.


2014 ◽  
Vol 14 (1) ◽  
pp. 36-51 ◽  
Author(s):  
Erwin Mlecnik

Purpose – The study ' s purpose is to review and discuss limitations of “strategic niche management” (SNM) success factors in relation to the experiences of an enterprise network to improve niche development for integrated design concepts. Design/methodology/approach – The emergence of a successful passive house innovation network in the Flemish Region is described. The innovation journey of the network is related to success factors detected in SNM literature regarding market niche development. Findings – The study identifies additional success factors for systemic innovation, such as involving small- and medium-sized innovators and demonstration projects and using a dedicated regional enterprise network. Research limitations/implications – The qualitative analysis specifically reflected on SNM success factors such as envisioning, learning, and network composition and formation. The study confirms the importance of these success factors by means of one detailed innovation journey. It identifies additional success factors and discusses opportunities to improve the relation of SNM literature with other seminal fields. Practical implications – Government seed money is important in providing a breakthrough in enterprise network initiatives. A focus on architectural innovation instead of technology innovation is to be preferred for stimulating integrated design concepts. Originality/value – The paper addresses the relevance and limitations of SNM success factors during the formation of enterprise networks. The study shows how an integrated design approach was used to cluster innovation opportunities and to inspire innovation development and collaboration for know-how development between multiple players.


Author(s):  
Pavlos Rompokos ◽  
Andrew Rolt ◽  
Devaiah Nalianda ◽  
Askin T. Isikveren ◽  
Capucine Senné ◽  
...  

Abstract Liquid hydrogen (LH2) has long been seen as a technically feasible fuel for a fully sustainable greener aviation future. The low density of the cryogenic fuel would dictate the redesign of commercial aircraft to accommodate the large tanks, which are unlikely to be integrated within the whole internal volume of the wing. In the ENABLEH2 project, the morphological aspects of a LH2 aircraft design are discussed and a methodology for rapid concept comparative assessment is proposed. An exercise is then carried on to down-select short-to-medium range (SMR) and long-range (LR) concepts, able to carry 200 passengers for 3000 nmi and 414 passengers for 7500 nmi respectively. The down-selection process was split into two phases with the first considering 31 potential airframe architectures and 21 propulsion-system arrangements. The second phase made the final down-selections from a short-list of nine integrated design concepts that were ranked according to 34 criteria, relating to operating cost, revenue, noise and safety. Upon completion of the process, a tube and wing design with the tanks integrated into extended wing roots, and a blended-wing-body design were selected as the best candidates for the SMR and LR applications respectively. Both concepts feature distributed propulsion to maximise synergies from integrating the airframe and propulsion systems.


Author(s):  
Pavlos Rompokos ◽  
Andrew Rolt ◽  
Devaiah Nalianda ◽  
Askin T. Isikveren ◽  
Capucine Senné ◽  
...  

Abstract Liquid hydrogen (LH2) has long been seen as a technically feasible fuel for a fully sustainable greener aviation future. The low density of the cryogenic fuel would dictate the redesign of commercial aircraft to accommodate the large tanks, which are unlikely to be integrated within the whole internal volume of the wing. In the ENABLEH2 project, the morphological aspects of a LH2 aircraft design are discussed and a methodology for rapid concept comparative assessment is proposed. An exercise is then carried on to down-select short-to-medium range (SMR) and long-range (LR) concepts, able to carry 200 passengers for 3000 nmi and 414 passengers for 7500?nmi respectively. The down-selection process was split into two phases with the first considering 31 potential airframe architectures and 21 propulsion-system arrangements. The second phase made the final down-selections from a short-list of nine integrated design concepts that were ranked according to 34 criteria, relating to operating cost, revenue, noise and safety. Upon completion of the process, a tube and wing design with the tanks integrated into extended wing roots, and a blended-wing-body design were selected as the best candidates for the SMR and LR applications respectively. Both concepts feature distributed propulsion to maximise synergies from integrating the airframe and propulsion systems.


Author(s):  
Andrew Masur ◽  
Filippo A. Salustri

The conceptual design process is one of the most important and confusing in engineering design. The Integrated Design Exploration and Analysis (IDEA) process was created to help improve conceptual design practices in the industry. An analysis of existing methods was conducted in order to identify weaknesses. The IDEA process, along with a supporting software interface, was developed to rectify these weaknesses. The interface was written in the open source program Compendium. Three multi-disciplinary case studies were conducted to validate the process. The use of IDEA led to more and higher quality design concepts.


Author(s):  
Janaka Ruwanpura

There is a lack of courses for design education in civil engineering curriculum except in fourth year at many Canadian Universities. An innovative approach introduced and implemented by the author to promote design education at the third year using a design competition at the University of Calgary was very successful. Student learned design concepts, applied them in the third year using a real project, integrated several civil engineering deliverables in one project without doing them in a separate course, and gained experience to get ready for their final year design course through this design competition. The eight courses included in the competition comprise all civil engineering aspects including structural, geotechnical, transportation, environmental, construction, material, and project management. The lessons learned by implementing the competition for 2 years, the author suggests a new idea to introduce a third year design project for civil engineering students. The paper discusses the purpose, structure, student participation, deliverables of the new idea.


2018 ◽  
Vol 10 (8) ◽  
pp. 2649 ◽  
Author(s):  
Jui-Che Tu ◽  
Li-Xia Liu ◽  
Kuan-Yi Wu

Due to industrial demand and the influence of government policies, the number of design colleges and students specializing in design in Taiwan has been increasing year by year. As a result, the topics on design education have gained great attention. To adapt to the rapidly-changing society, training that is designed to strengthen the professionalism and integration ability of those design majors should also be adjusted. Unlike traditional teaching methods, Stanford Design Thinking is a people-oriented problem-solving method. Proceeding from human needs, it offers creative solutions to various topics. Placing emphasis on integrated team communication and the cooperation and exchange among interdisciplinary talents, it is a new teaching model in response to the changes to the design environment. In this study, Stanford Design Thinking was introduced to the integrated design curriculum education as a creativity teaching strategy, and the action research method was adopted to explore the learning effectiveness of the design thinking method. According to the findings, the design thinking method can improve teaching; it can promote student participation through interview training in class during the Empathize stage; it offers substantial assistance to students in actual interviews; it reveals information about the demands of target groups, deepens students’ discussions on design-related topics, and creates a favorable atmosphere for teaching; it fosters a positive interaction between students and teachers and makes students more attentive in class. Inspired by this teaching method, students can independently seek product-testing objects to review their design concepts and develop a stronger motivation for self-learning.


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