scholarly journals Estimating the Impact of Design Automation: The Influence of Knowledge on Potential Estimation

Author(s):  
Eugen Rigger ◽  
Alexander Lutz ◽  
Kristina Shea ◽  
Tino Stankovic

AbstractAssessing the impact of design automation on design practice prior to its implementation is difficult and subject to uncertainties. One reason for this is the designers' lack of knowledge about design automation. In this work, an industrial case study focusing on conceptual design of hydraulic circuits is conducted to assess the impact of the designers' knowledge on design automation potential estimation. In particular, the impact of demonstrating a prototypical implementation of a design automation application is investigated as a means to enhance the designers' knowledge about design automation. In this respect, a given set of metrics is rated twice to enable a comparative study: prior to and after introducing the design automation prototype. The yielded results show that the knowledge impacts the rating and supports reliability of potential estimation. Further, it is shown that designers acknowledge design automation potential for the early stages of design given sufficient knowledge about design automation. Yet, the results also indicate that careful attention needs to be put on the aspects covered by the prototype in order to avoid biasing participants.

Author(s):  
Olof Johansson ◽  
Henric Andersson ◽  
Petter Krus

Conceptual design for complex products like aircraft and power plants requires a considerable effort since the product models become very large if they are to cover all important aspects for different stakeholders. To cope with this overall effort, designers have to rely on legacy designs and reuse, and improve the product concepts incrementally between product generations. This paper describes a generalized inheritance mechanism we call generic object inheritance that enables quick reuse and modification of conceptual product models at any level in their hierarchical break down structures. By facilitating reuse of conceptual models of previously well studied products, more time can be spent on developing the parts that contain the edge of a new product generation. This enables keeping the modified concepts in context of a complete analyzable product model where the impact of changes can be studied without having to maintain multiple copies of the same object structures. The paper describes how generic object inheritance is used for developing the next version of a conceptual product model of a small business jet, while reusing the essential parts of the previous version with minor modifications to design parameters and substructures. The design and core mechanisms of generic object inheritance are briefly described, and illustrated with examples from the case study.


2009 ◽  
Vol 131 (6) ◽  
Author(s):  
Eric Bonjour ◽  
Samuel Deniaud ◽  
Maryvonne Dulmet ◽  
Ghassen Harmel

Modular product design has received great attention for about 10 years, but few works have proposed tools to either jointly design the functional and physical architectures or propagate the impact of evolutions from one domain to another. In this paper, we present a new method supporting the product architecture design. In new product development situations or in re-engineering projects, system architects could use this method in the early design stages to predetermine cohesive modules and integrative elements and to simulate a domain architecture by propagating architecture choices from another domain. To illustrate our approach, we present an industrial case study concerning the design of a new automobile powertrain.


Author(s):  
Sixto Marin ◽  
Alejandro Navarro

The late but accelerated industrialization of our country in the early 1900’s resulted in a polarization of the population movements: while certain cities increased exponentially their number of inhabitants, an important percentage of the territory gradually experienced a consequent depopulation. Whereas the effects of the former phenomenon in the cities have been deeply examined, the impact of the latter in the territory is a relatively unexplored subject, thus full of possibilities. In some areas, the rural exodus was so sudden that the development of their pre-industrial residential schemes froze-up and, thus, the high-value cultural landscape that they take part in remained almost unaltered until today. Most of these abandoned settlements had an intense and balanced relationship with their surroundings. Their location, morphology and the links among them were built upon an environmental friendly and resource efficient basis. This study will focus on the sustainable anthropization of the territory that was performed by these villages, in order to value them as intangible assets and to identify the most feasible strategies to their recovery. As case study, in Altoaragon, we can find no less than 150 abandoned settlements and, in the same territory, almost 30 villages that have been recovered in the last 30 years. Through a comparative study of the latter, we seek to develop generic strategies to help identify, among the former, those settlements or abandoned areas with more potential,  and to draw the basic guidelines to restore and protect the pre-industrial stage as a whole.


2013 ◽  
Vol 3 (3) ◽  
pp. 1
Author(s):  
Jos Thalen ◽  
Mascha van der Voort

In the early stages of a product development process (PDP), VR can facilitate communication between designers and product end-users to improve the quality of feedback that user provide to designers. While various forms of VR can already be found in the PDP, they primarily target designers, rather than designers and end-users. Furthermore, available tools and toolkits do not match the skills and requirements of designers in early stages of the PDP. The current paper presents an approach that first identifies how to effectively support early stage design activities (referred to as the application) and subsequently provides designers with tools to realize this application themselves. The approach is implemented in an industrial case study involving practitioners from a multinational manufacturer of printing solutions for professional markets. The Virtual Printshop resulting from this case study provides an evaluation platform for various types of early stage product evaluations. A concluding generalization of the cases study results shows that the application can be translated to several other design domains. Furthermore, it was found that there are similarities in how these different design domains integrate VR design tools with their existing tool chains.


Author(s):  
Jin Qi ◽  
Jie Hu ◽  
Guoniu Zhu ◽  
Yinghong Peng

Synthesizing principle solutions (PSs) in various disciplines together is a common practice in multi-disciplinary conceptual design (MDCD), which generates the combination of PSs to meet the desired functional requirement. Different from structure- and function-based synthesis methods, a hybrid PS synthesis (HPSS) method through integrating functional and structural knowledge is proposed in this paper, which not only achieves the automated synthesis of multi-disciplinary PSs, but also resolves the undesired physical conflicts during the synthesis process. It comprises of united representation approach for modeling functional and structural knowledge of multi-disciplinary PSs, adapted agent-based approach for chaining the specified functional flows of PSs, and the extension conflict resolve approach for handling the partial design conflicts among selected PSs. An industrial case study on the emergency cutting off (ECO) device design was given to validate the applicability of HPSS, and it indicates that HPSS can not only get multi-disciplinary design result of ECO device, but also further resolve the design conflict (i.e., vibration impact) to optimize the functional structure of ECO device.


Sign in / Sign up

Export Citation Format

Share Document