Mapping of GD&amp;T information and PMI between 3D product models in the STEP and STL format

Hallmann, Martin; Goetz, Stefan; Schleich, Benjamin

doi:10.1016/j.cad.2019.06.006

Cited by 29 publications

(11 citation statements)

References 27 publications

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“…Therefore, Yuan et al [31] combined laws and regulations with the safety knowledge of experts, and established an automated construction safety inspection rule database system to improve the efficiency of traditional manual safety planning. By analyzing the information provided by the 3D model, Hallman [32] pointed out that the petrochemical industry needs to take safety protection measures during the design phase and construction phase, so that on-site operators, safety managers, and safety supervisors can acquire correct safety protection information in real time, which is critical to job safety management.…”

Section: Discussionmentioning

confidence: 99%

Integration of Safety Knowledge into Three-Dimensional Model Design and Construction Plan from the Perspective of Project Executors in Petrochemical Industry

Wen¹,

Liang²

2021

IJSSE

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In petrochemical industry, the execution of construction involves three main issues, namely, design planning, construction, and job safety. Three-dimensional (3D) models are increasingly applied to design and construction. However, the improper concept of 3D design has bred potential unsatisfactory behaviors and the lack of vigilance among workers. Besides, many employees are not fully aware of the safety in 3D design and construction planning. Therefore, our goal is to improve the safety and health of construction workers through design practices in the upstream of the construction phase, and verify the applicability of the combination of 3D models and safety knowledge. Specifically, a questionnaire survey was carried out among 124 employees in the construction-related fields of the petrochemical industry. The collected data were processed, and statically analyzed on SPSS. The results show that safety knowledge was acceptable in 3D model design from the perspective of project executors, and the integration of safety knowledge into the design helps to improve the safety environment of the construction site.

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Section: Discussionmentioning

confidence: 99%

Integration of Safety Knowledge into Three-Dimensional Model Design and Construction Plan from the Perspective of Project Executors in Petrochemical Industry

Wen¹,

Liang²

2021

IJSSE

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“…Computer-aided design (CAD) models with product and manufacturing information (PMI) are widely used in the product development process for the representation of relevant geometry and tolerance information (Hallmann, Goetz & Schleich 2019). However, the setup of a CAD model requires a certain degree of previously defined or assumed information, so that it is not practical at the beginning of the concept stage, especially for original designs.…”

Section: Data Models For Product and Tolerance Informationmentioning

confidence: 99%

Integrated approach enabling robust and tolerance design in product concept development

et al. 2021

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Along with the ever-increasing customer demands, early consideration of variation in terms of robust design is important to avoid expensive iterations in the product development. However, existing methods are detached from the development process and can therefore only be applied at a late stage or only with comprehensive expert knowledge. Especially in the concept stage, where the geometry of a product is not yet defined and the optimisation potential is high, effective solution proposals for systematic consideration of variation are lacking. Therefore, this paper describes a new integrated approach facilitating robust and tolerance design in the concept stage. The novelty of the approach using ontologies and graph-based visualisation is the close linkage of product development and tolerance knowledge, which allows automation and helps to avoid time- and cost-intensive iteration loops. As a result, a robust and tolerance-compliant concept design, an initial qualitative tolerance specification and instructions for the further tolerancing process are already available at the end of the concept stage. The applicability and the benefits of the approach are illustrated by representative case studies and a user study allowing a critical comparison between the conventional, mostly subjective procedure and the presented approach.

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“…STEP standard develops EXPRESS language to express the geometric and technical information in MBD dataset, introduces the concepts of ENTITY and SCHEMA and stores the information according to ASCII to form a common. STP file, also known as P21 file [19].…”

Section: Presentation and Representation Of Mbd Datasetmentioning

confidence: 99%

3D Interpreted Model: A Novel Product Definition Model by Integrating and Fusing a 3D Annotated Model and Design Knowledge

2021

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Model based definition (MBD) is the core of product digital research and development. The extension of the scope and content of the product model is an important way to improve the application ability of MBD methodology. In view of the demand of the development of the product definition method and the lack of systematic theoretical methods to support the further improvement of product model quality and ability, this paper proposes the concept of a 3D interpreted model as a new product definition model by integrating and fusing design knowledge on the basis of the MBD model. Firstly, the concept, characteristics and representation method of the 3D interpreted model are elaborated. Then, the construction method of the 3D interpreted model is proposed, which includes two steps. The first step is design knowledge annotation, which is used to integrate design knowledge with the MBD model and form the 3D interpreted model in a CAD environment. The second step is information extraction and knowledge fusion, which is used to construct a 3D interpreted model network by processing the product information and design knowledge stored in a STEP file and knowledge index file, respectively. Finally, a prototype system is developed, and the construction process of a 3D interpreted model is demonstrated and verified through an example. The results show that as a new product definition model, a 3D interpreted model realizes the comprehensive integration of a MBD model and design knowledge, so as to realize the inheritance and development of the product definition method, and supports business activities and saves more social resources.

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Mapping of GD&T information and PMI between 3D product models in the STEP and STL format

Cited by 29 publications

References 27 publications

Integration of Safety Knowledge into Three-Dimensional Model Design and Construction Plan from the Perspective of Project Executors in Petrochemical Industry

Integration of Safety Knowledge into Three-Dimensional Model Design and Construction Plan from the Perspective of Project Executors in Petrochemical Industry

Integrated approach enabling robust and tolerance design in product concept development

3D Interpreted Model: A Novel Product Definition Model by Integrating and Fusing a 3D Annotated Model and Design Knowledge

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