Abstract
Nowadays, several manufacturing systems are evolving towards a greater collaboration between human and robots. The development of such systems requires integrated design tasks involving many disciplines and domains such as systems engineering, safety analyses and multi-physics. Furthermore, the increasing presence of multiple and structured requirements makes the use of models inevitable during the designing phases and also strongly helpful during other phases of the system life-cycle. Besides, for a better efficiency, there is an increasing demand to have a Digital Twin of the system to be used for different purposes such as design improvements by playing different scenarios, virtual commissioning and controlling maintenance activities. In this paper, we first summarize the research context, the reference methodologies, and the emerging needs for Digital Twin creation. Then, we apply a design approach including Model-Based Systems Engineering (MBSE), Model-Based Safety Assessment (MBSA) and multi-physics modeling for the design of a collaborative workplace for the assembly of Electro-Mechanical Actuators on an aircraft wing. An operational flow to integrate MBSE, MBSA and multi-physics modelling activities is provided. Then, after having identified some relevant scientific barriers, we provide a meta-model for system models integration within a digital twin framework.
Highlights
Introduction and State of the ArtOver the last three centuries, manufacturing has radically evolved through the industrial revolutions
It consists of two phases: (i) a Black Box Analysis (BBA) that provides a comprehensive and consistent set of functional and nonfunctional requirements by analyzing the system from an external point of view, and (ii) a White Box Analysis (WBA) that progressively leads to the internal architecture and behavior of the system
We have shown the above mentioned coupling by considering a collaborative workplace for aircraft assembly (EMA assembly workplace)
Summary
Model-Based Systems Engineering (MBSE) is the formalized application of modeling to support complex system requirements, design, analysis, verification and validation, beginning in the conceptual design phase and continuing throughout the development, and covering all life cycle phases [16]. The SysML-based methodology presented in [18] helps to carry out the descending branch of the V-Model It consists of two phases: (i) a Black Box Analysis (BBA) that provides a comprehensive and consistent set of functional and nonfunctional requirements by analyzing the system from an external point of view, and (ii) a White Box Analysis (WBA) that progressively leads to the internal architecture and behavior of the system. SysML [19] is a unified general-purpose modeling language for high-level descriptive models; it supports traceability among the different viewpoint diagrams. In addition to designing the system to respond to the functional requirements, it is important to make sure that failures and dysfunctions among the system does not cause a big harm To this end, Safety analysis and Model-Based Safety Analysis (MBSA) must make part of the whole design process. Some researchers have worked on the connection of different virtual models, no one provides a useful generalized method to link models
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