Generative Design and CNC Fabrication Using Shape Grammars

Ertelt, Christoph; Shea, Kristina

doi:10.1115/detc2008-49856

Cited by 9 publications

(4 citation statements)

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“…During the application of RVs to the TRV, the TRV and the sequence of RV applications represent the working shape. The details of the specific shape grammar for machining planning can be found in [78] and [88].…”

Section: ) State-of-the-art and Research Gapsmentioning

confidence: 99%

Artificial Cognition in Production Systems

Bannat¹,

Bautze²,

Beetz³

et al. 2011

IEEE Trans. Automat. Sci. Eng.

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103

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Abstract-Today's manufacturing and assembly systems have to be flexible to adapt quickly to an increasing number and variety of products, and changing market volumes. To manage these dynamics, several production concepts (e.g., flexible, reconfigurable, changeable or autonomous manufacturing and assembly systems) were proposed and partly realized in the past years. This paper presents the general principles of autonomy and the proposed concepts, methods and technologies to realize cognitive planning, cognitive control and cognitive operation of production systems. Starting with an introduction on the historical context of different paradigms of production (e.g., evolution of production and planning systems), different approaches for the design, planning, and operation of production systems are lined out and future trends towards fully autonomous components of an production system as well as autonomous parts and products are discussed. In flexible production systems with manual and automatic assembly tasks, human-robot cooperation is an opportunity for an ergonomic and economic manufacturing system especially for low lot sizes. The state-of-the-art and a cognitive approach in this area are outlined. Furthermore, introducing self-optimizing and self-learning control systems is a crucial factor for cognitive systems. This principles are demonstrated by a quality assurance and process control in laser welding that is used to perform improved quality monitoring. Finally, as the integration of human workers into the workflow of a production system is of the highest priority for an efficient production, worker guidance systems for manual assembly with environmentally-and situationally dependent triggered paths on state-based graphs are described in this paper.Note to Practitioners-Today's manufacturing enterprises have to face a number of challenges in a turbulent environment that originates amongst other from saturated markets, unprecedented and abrupt changes in market demands, an ever increasing number of product variants and smaller lot sizes. A recent research trend in Germany is the so called Cognitive Factory, where artificial cognitive capabilities are introduced to the control of production systems. The applications range from production planning and control, human-robot-cooperation, automatic robot programming to intuitive worker guidance systems.The concept of fully automated production systems is no longer a viable vision, as it has been shown, that the conventional automa- tion is not able to deal with the ever-rising complexity of modern production systems. Especially, a high reactivity, agility and adaptivity that is required by modern production systems, can only be reached by human operators with their immense cognitive capabilities, which enable them to react to unpredictable situations, to plan their further actions, to learn and to gain experience and to communicate with others. Thus, new concepts are required, that apply these cognitive principles to the planning processes and control systems of pr...

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Section: ) State-of-the-art and Research Gapsmentioning

confidence: 99%

Artificial Cognition in Production Systems

Bannat¹,

Bautze²,

Beetz³

et al. 2011

IEEE Trans. Automat. Sci. Eng.

Self Cite

103

View full text Add to dashboard Cite

show abstract

“…translating an endmill in the horizontal direction to yield a slot like removal volume (Fig. 10) as presented in [66]. The RV also contains a parametric description of the CNC code necessary to execute the operation on the specific machine tool.…”

Section: Machining Planning Approachmentioning

confidence: 99%

Design-to-fabrication automation for the cognitive machine shop

Shea

Ertelt

Gmeiner

et al. 2010

Advanced Engineering Informatics

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“…Ostrosi and Ferney 49 proposed a graph grammar for feature modelling. Ertelt and Shea 50,51 used shape grammars for generative design and process planning for computer numerical control (CNC) machining. Shea et al 52 integrated shape grammars into a new cognitive approach for the autonomous design-to-fabrication system.…”

Section: Grammars and Their Applications In Designmentioning

confidence: 99%

Styling of cars: is there a relationship between the style of cars and the culture identity of a specific country?

Bluntzer

Ostrosi

Sagot

2014

Proceedings of the Institution of Mechanical Engineers, Part D:

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Today, with globalization, an important characteristic of a car's brand should be its clear and precise identity. In order to obtain a successful brand, company managers should continuously be innovative without forgetting the product history of the brand and should use the culture of the country as a value system and as an inspirational background. The goal of this paper is to analyse the relationship between the car's style and some implicit references such as the culture identity of a specific country. The analysis is carried out on the basis of the extracted data on and study of characteristic styling lines of the cars. French cars (Peugeot, Citroën and Renault) as well as German cars (Volkswagen) are selected and analysed. It is found that specific styling lines are particular to French cars. From this analysis, it is concluded that a French style identity is implicitly embedded in the car's design.

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Generative Design and CNC Fabrication Using Shape Grammars

Cited by 9 publications

References 0 publications

Artificial Cognition in Production Systems

Artificial Cognition in Production Systems

Design-to-fabrication automation for the cognitive machine shop

Styling of cars: is there a relationship between the style of cars and the culture identity of a specific country?

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