Holistic Digital Function Modelling with Graph-Based Design Languages

Elwert, Michael; Ramsaier, Manuel; Eisenbart, Boris; Stetter, Ralf

doi:10.1017/dsi.2019.158

Cited by 12 publications

(16 citation statements)

References 11 publications

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“…Currently, graph-based design methods (compare [13] are developed as a prominent means for realizing MBSE through knowledge representation in UML and compilation by means of a design compiler (DC43, IILS GmbH, Trochtelfingen, Germany [14]) leading to a machine-executable V-model. The approach includes represen-tations of requirements [15], functions [16] and abstract physics [17] and was demonstrated on multiple examples such as the design of a balanced two-wheel scooter [18]. In the given case, the general procedure can be described applying a V-model which is included in the main V-model representing the development of the whole vehicle (Figure 2).…”

Section: Design Simulation and Optimization Processesmentioning

confidence: 99%

Design, Simulation and Optimization of an Electrical Drive-Train

Schumacher

Schmid²,

Wieser³

et al. 2021

Vehicles

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Today, design engineers engaged in the development of a high-performance electrical drive-train are challenged by the multitude of possible topological choices and numerous mutually interconnected physical phenomena. Development teams around the globe struggle with this challenge; usually they employ several tools for simulation and topology optimization and transfer multiple versions of their product models in a mainly manual process. The research presented in this paper aims to explore a holistic possibility to realize a sensible analysis-synthesis cycle that takes into consideration current developments in design, simulation and optimization processes. This kind of process can enhance the transparency of design decisions, can reduce the risk of design and process flaws and can support the approach toward a holistic optimum. The investigation starts with the development of the topological concept of the drive-train and continues over the interconnected simulation of several decisive properties of the drive-train. Obviously, these properties concern several domains (mechanical, electrical, thermal and the control domain). The optimization of the drive-train takes into consideration the main requirement—in the investigated example, which is a formula student drive-train—the lap time. The result is a holistic concept for a design, simulation and optimization approach that considers topological variety, interconnected multi-domain simulation and a continuous connection to the decisive requirements.

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Section: Design Simulation and Optimization Processesmentioning

confidence: 99%

Design, Simulation and Optimization of an Electrical Drive-Train

Schumacher

Schmid²,

Wieser³

et al. 2021

Vehicles

Self Cite

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“…More concrete is the functional level, because it is analyzed and synthesized on this level of which functions in what structure are able to realize the functional requirements. Both the requirement level and the function level were integrated in the last few years in digital-engineering frameworks [6,8]. The actual (macro-and micro-) geometry, material, and product structure are described on the most concrete level.…”

Section: Abstract Physics-backgroundmentioning

confidence: 99%

“…This leads, on the one hand, to product-development processes that lack efficiency, and, on the other hand, to suboptimal solutions for technical systems to be developed. Today, the early stages of requirement management [5,6] and function modelling [7,8] are well-researched, but this research that is concerning the modelling possibilities on an intermediate level is much less mature, which links these two description modes to concrete product geometry, material, and structure. A general need for a description of abstract physics was identified in 1965 by Atkin [9].…”

Section: Introductionmentioning

confidence: 99%

Approaches for Modelling the Physical Behavior of Technical Systems on the Example of Wind Turbines

Stetter

2020

Energies

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Models of technical systems are an essential means in design and product-development processes. A large share of technical systems, or at least subsystems, are directly or indirectly connected with the generation or transformation of energies. In design science, elaborated modelling approaches were developed for different levels of product concretization, for instance, requirement models and function models, which support innovation and new product-development processes, as well as for energy-generating or -transforming systems. However, on one product-concretization level, the abstract level that describes the physical behavior, research is less mature, and an overview of the approaches, their respective advantages, and the connection possibilities between them and other modelling forms is difficult to achieve. This paper proposes a novel discussion structure based on modelling perspectives and digital-engineering frameworks. In this structure, current approaches are described and illustrated on the basis of an example of a technical system, a wind turbine. The approaches were compared, and their specific advantages were elaborated. It is a central conclusion that all perspectives could contribute to holistic product modelling. Consequently, combination and integration possibilities were discussed as well. Another contribution is the derivation of future research directions in this field; these were derived both from the identification of “white spots” and the most promising modelling approaches.

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“…In between this level and the function level, an intermediate level can be found, which consists of physical phenomena or effects which realize the functions; the network of this physical effects leads to the physical behaviour of the technical system. In the last years both the requirements and the functions were integrated in a digital engineering framework (Holder et al, 2017;Ramsaier et al, 2017;Elwert et al, 2019). The most concrete level "geometry and material" forms the centre of a digital engineering framework, as this kind of concrete information can be stored digitally in a straight-forward manner.…”

Section: Introductionmentioning

confidence: 99%

“…It is the central objective of this paper to propose an approach to achieve this integration. The integration is based on the application of graph-based languages using UML, because this approach was found to offer certain advantages also on the levels of requirements (Holder et al, 2017) and functions (Ramsaier et al, 2017;Elwert et al, 2019). The approach is demonstrated using the example of a balanced two-wheel scooter (compare Segway).…”

Section: Introductionmentioning

confidence: 99%

Abstract Physics Representation of a Balanced Two-Wheel Scooter in Graph-Based Design Languages

Ramsaier

Stetter

Till

et al. 2020

Proc. Des. Soc.: Des. Conf.

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This paper presents a novel approach to include a holistic description of abstract physics in a digital engineering framework. Physical phenomena realize the numerous functions of technical systems and are an important link between rather abstract product functions and the concrete product geometry and material. Until now, a possibility to integrate the analysis and synthesis on this level of abstraction into a holistic engineering frameworks is not existing. The novel approach employs graph-based design languages using UML for this endeavour; the product example is a two-wheel scooter.

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Holistic Digital Function Modelling with Graph-Based Design Languages

Cited by 12 publications

References 11 publications

Design, Simulation and Optimization of an Electrical Drive-Train

Design, Simulation and Optimization of an Electrical Drive-Train

Approaches for Modelling the Physical Behavior of Technical Systems on the Example of Wind Turbines

Abstract Physics Representation of a Balanced Two-Wheel Scooter in Graph-Based Design Languages

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