Design Concept Generation: A Hierarchical Coevolutionary Approach

2006 ◽  
Vol 129 (10) ◽  
pp. 1012-1022 ◽  
Author(s):  
Yan Jin ◽  
Wei Li
Keyword(s):  
Lead Time ◽  
Design Space Exploration ◽  
Initial Population ◽  
Concept Generation ◽  
Design Problems ◽  
Design Concepts ◽  
Support Tools ◽  
Different Levels ◽  
Function Structures

As design problems become more complex and design lead time more pressing, designers need effective support tools to expand their design space exploration. In this paper, a hierarchical coevolutionary approach is proposed to support designers by automatically generating design concepts based on the designers’ inputs. The approach adopts a zigzag design process in which function structures and their corresponding solution principles coevolve in parallel across different levels of an abstraction hierarchy. A grammar-based approach is applied to decompose higher-level functions and generate an initial population of function structures. From this initial population, a coevolutionary algorithm is devised to coevolve more function structures and their corresponding solution principles. A case study of designing a mechanical personal transporter is presented to demonstrate the effectiveness and features of the proposed approach.

A User-Oriented Approach to Designing a Neck Support

2007 ◽  
Vol 15 (3) ◽  
pp. 24-27
Author(s):  
A. Shekar ◽  
R. J. Billington ◽  
T. Joe
Keyword(s):  
Idea Generation ◽  
Consumer Products ◽  
User Testing ◽  
Design Problems ◽  
Design Decisions ◽  
Early Design ◽  
Testing Procedures ◽  
Design Concepts ◽  
Oriented Approach

AT A GLANCE: In this article, we explore the development of a neck support for clients in salons and discuss the user-oriented approach and testing procedures. The current U-shaped neck supports in hair salons are too small to fit larger necks, do not provide cushioning, and exert uncomfortable pressure on the neck. We examined existing design problems, then created and evaluated new design concepts. This process involved the application of idea generation techniques, screening, evaluation, testing, and further design modifications. The key message from this case study is that user testing provides valuable information and confidence in the early design decisions that need to be made for successful consumer products.

Form Follows Form: Is a New Paradigm Needed?

2009 ◽  
Author(s):  
Matt R. Bohm ◽  
Robert B. Stone ◽  
Robert L. Nagel
Keyword(s):  
Computational Algorithms ◽  
Generation Process ◽  
Concept Generation ◽  
New Paradigm ◽  
Generation Technique ◽  
Component Solution ◽  
Automatic Mode ◽  
Grammar Rules ◽  
Different Levels

This paper presents a new form-based concept generation technique known as Form Follows Form (FFF). The technique allows a novice engineer or designer to use natural language to specify components envisioned within a product to initiate a more thorough concept generation process. Form follows form takes the initial component solution and then formulates the underlying function structure by leveraging a repository of over 5500 artifacts. Existing computational conceptual design methods are then employed to automatically display a set of ranked concept alternatives to the user. Users can choose from two different levels of interaction, an automatic mode that uses the most common functions to develop concept alternatives, or a mode that allows the user to be more precise in defining a product’s interaction. The computational algorithms and grammar rules are detailed along with a case study using both tiers of interaction.

scholarly journals Digital Twin for Designing and Reconfiguring Human–Robot Collaborative Assembly Lines

2021 ◽  
Vol 11 (10) ◽  
pp. 4620
Author(s):  
Niki Kousi ◽  
Christos Gkournelos ◽  
Sotiris Aivaliotis ◽  
Konstantinos Lotsaris ◽  
Angelos Christos Bavelos ◽  
...  
Keyword(s):  
Production System ◽  
Assembly Lines ◽  
Flexible Assembly ◽  
Digital Twin ◽  
Collaborative Assembly ◽  
Geometrical Information ◽  
Line Level ◽  
Dual Arm ◽  
Different Levels

This paper discusses a digital twin-based approach for designing and redesigning flexible assembly systems. The digital twin allows modeling the parameters of the production system at different levels including assembly process, production station, and line level. The approach allows dynamically updating the digital twin in runtime, synthesizing data from multiple 2D–3D sensors in order to have up-to-date information about the actual production process. The model integrates both geometrical information and semantics. The model is used in combination with an artificial intelligence logic in order to derive alternative configurations of the production system. The overall approach is discussed with the help of a case study coming from the automotive industry. The case study introduces a production system integrating humans and autonomous mobile dual arm workers.

scholarly journals The Importance of Environmental Factors in the Planning of Container Terminals: The Case Study of the Port of Augusta

2021 ◽  
Vol 11 (5) ◽  
pp. 2153
Author(s):  
Nadia Giuffrida ◽  
Maja Stojaković ◽  
Elen Twrdy ◽  
Matteo Ignaccolo
Keyword(s):  
Environmental Impact ◽  
Container Terminal ◽  
Decision Support Tool ◽  
Container Terminals ◽  
Mitigation Measures ◽  
Support Tool ◽  
Clean Environment ◽  
Different Levels

Container terminals are the main hubs of the global supply chain but, conversely, they play an important role in energy consumption, environmental pollution and even climate change due to carbon emissions. Assessing the environmental impact of this type of port terminal and choosing appropriate mitigation measures is essential to pursue the goals related to a clean environment and ensuring a good quality of life of the inhabitants of port cities. In this paper the authors present a Terminal Decision Support Tool (TDST) for the development of a container terminal that considers both operation efficiency and environmental impacts. The TDST provides environmental impact mitigation measures based on different levels of evolution of the port’s container traffic. An application of the TDST is conducted on the Port of Augusta (Italy), a port that is planning infrastructural interventions in coming years in order to gain a new role as a reference point for container traffic in the Mediterranean.

scholarly journals A Unique Transdisciplinary Engineering-Based Integrated Approach for the Design of Temporary Refugee Housing Using Kano, HOQ/QFD, TRIZ, AD, ISM and DSM Tools

Designs ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 31
Author(s):  
Daniel Moran ◽  
Atila Ertas ◽  
Utku Gulbulak
Keyword(s):  
Rural Areas ◽  
Social Issues ◽  
Integrated Approach ◽  
Interpretive Structural Modeling ◽  
Design Problems ◽  
Design Structure ◽  
Function Design ◽  
Complex Engineering ◽  
Design Conflicts

The continued displacement of refugees from their homes and homelands (now greater than 50 million people worldwide) places increased focus and attention on evolving the designs of temporary housing that is available to be provided to the refugee population, especially in rural areas where housing does not already exist and must be constructed in very little time. Complex engineering problems involving social issues, such as this case study, benefit from the use of Integrated Transdisciplinary (TD) Tools (ITDT) to effectively and efficiently address the design questions related to them. The integrated use of TD Tools such as Kano Analysis, KJ Diagrams, Critical to Quality (CTQ), House of Quality (HOQ)/Quality Function Design (QFD), Theory of Inventive Problem Solving (TRIZ), Axiomatic Design (AD), Interpretive Structural Modeling (ISM), and Design Structure Matrix (DSM) through an end-to-end unique design process leads to innovation and elimination of design conflicts for especially complicated design problems. The objective of this study is to examine the design of temporary refugee housing using integrated TD tools mentioned above. This research concludes that the use of the ITDT approach provides an innovative, decoupled design.

unrechtliche peinliche schmehung oder dem gemeinen nutz nuetzlich?Eine Fallstudie zur Normenkonkurrenz im Schmähschriftprozess des 16. Jahrhunderts

2020 ◽  
Vol 25 (1) ◽  
pp. 135-149
Author(s):  
Jan Siegemund
Keyword(s):  
Early Modern ◽  
Common Good ◽  
Public Places ◽  
Legal Norms ◽  
The Public ◽  
The Common ◽  
The Public Sphere ◽  
The City ◽  
Different Levels

AbstractLibel played an important and extraordinary role in early modern conflict culture. The article discusses their functions and the way they were assessed in court. The case study illustrates argumentative spaces and different levels of normative references in libel trials in 16th century electoral Saxony. In 1569, Andreas Langener – in consequence of a long stagnating private conflict – posted several libels against the nobleman Tham Pflugk in different public places in the city of Dresden. Consequently, he was arrested and charged with ‘libelling’. Depending on the reference to conflicting social and legal norms, he had therefore been either threatened with corporal punishment including his execution, or rewarded with laudations. In this case, the act of libelling could be seen as slander, but also as a service to the community, which Langener had informed about potentially harmful transgression of norms. While the common good was the highest maxim, different and sometimes conflicting legally protected interests had to be discussed. The situational decision depended on whether the articulated charges where true and relevant for the public, on the invective language, and especially on the quality and size of the public sphere reached by the libel.

scholarly journals Natural resource abundance and eminent domain: A case study from Africa

2012 ◽  
Vol 27 (4) ◽  
pp. 319-325 ◽  
Author(s):  
Franklin Obeng-Odoom
Keyword(s):  
West Africa ◽  
Natural Resource ◽  
Analytical Framework ◽  
Eminent Domain ◽  
Resource Abundance ◽  
Local Impacts ◽  
Compulsory Purchase ◽  
Oil City ◽  
Different Levels

This Viewpoint article draws on the doctrine of eminent domain (or compulsory purchase) as an analytical framework to analyse the regional and local impacts of a new source of oil. Sekondi-Takoradi, an oil city located in Ghana, West Africa, is used as a case study to explore the differentiated experiences of local people. The article shows that, although there are complex distributional issues that require different levels of compensation and betterment to be assessed and paid for, it is unlikely that they will, in fact, even be considered.

Lean Solutions in Batch Manufacturing Process with Applicability in Bumpers Production

2016 ◽  
Vol 834 ◽  
pp. 205-210
Author(s):  
Elena Loredana Terzea ◽  
Antonia Cristina Barascu ◽  
Iulian Razvan Soare
Keyword(s):  
Automotive Industry ◽  
Food Processing ◽  
Lead Time ◽  
Batch Processes ◽  
Value Stream Mapping ◽  
Value Stream ◽  
Industry Sector ◽  
Current Value ◽  
Lean Methods

Batch processes includes paint manufacturing, food processing, pharmaceutical industry, etc. The paper focuses on the process of paint manufacturing. The main contribution is the design of the current value stream mapping, very useful to understand the causes of waste and lead-time. This paper points out the necessity of applying lean methods within automotive industry, sector of bumpers painting and assembly, based on a real case-study.

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