Computer-assisted method and device for generating digital representation of technical structure, and corresponding computer program product

Abstract

The invention relates to a computer-assisted method (1) and a device (C1) for generating a digital representation (17) of a technical structure, in particular an electric motor, and to a corresponding computer program product (1, C2). In the method (1), a domain-specific model based on digital geometric data of the components (2, 18, 19, 20, 21, 22) is provided. Thereby, a model reduction is carried out, in which a domain-specific model is converted into modal coordinates, in which a spectral representation of the component (2, 18, 19, 20, 21, 22) is determined by means of a corresponding modal analysis. Based on this, the corresponding state space representation is generated as a reduced-order spectral model. In order to integrally simulate the technical structure, the spectral models are coupled to each other to form a digital representation (17) for simulation, which describes the performance of the technical structure across domains.

Description

technical field [0001] The present invention relates to a computer-aided method and apparatus for generating a digital representation of a technical structure and a corresponding computer program product. Background technique [0002] Computer-aided methods, such as finite element-based accurate component modeling and others summarized in CAE (Computer-aided Engineering), have been used in modern product development. Analysis based on this can provide precise insight into the characteristics of the corresponding modeled components and thereby accelerate development. However, the disadvantage is that the corresponding data is often not accessible and understandable, and, for example, finite element experts (FE: finite Element Finite Element) are retained. Furthermore, the computing hardware actually available today and in the foreseeable future cannot fully model and simulate complex systems in a reasonable amount of time because of the excessive computational effort and com...

AI Technical Summary

Problems solved by technology

However, the disadvantage is that the corresponding data are often not accessible and understandable, and for example, finite element experts (FE: finite Element finite element) are reserved

Furthermore, the computing hardware actually available today, and for the foreseeable future, cannot fully model and simulate complex systems in a reasonable amount of time, as this involves too much computational effort and complexity

[0003] Thus, until now, people have often limited themselves to the individual modeling of individual components and / or the replacement of complex systems or structures with completely simplified representations, which can only provide very rough basic statements and results

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