Product Flexible Car Body Fixtures with Position-dependent Load Balancing Based on Finite Element Method in Combination with Methods of Artificial Intelligence

Fritzsche, Rayk; Richter, Andreas; Pütz, Matthias

doi:10.1016/j.procir.2017.12.241

Cited by 9 publications

(2 citation statements)

References 2 publications

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“…In this way, simulation ultimately serves to identify improvements quickly and without time-consuming and costly physical interventions in production. Possible application examples are contract manufacturing in the field of CNC machining [4], assembly lines automated by robots [5] or flexible matrix production systems [6]. In order to make the most accurate predictions possible within the simulation, it is necessary to know the energy consumption of the single machines and their components during the execution of individual process steps as precise as possible.…”

Section: Introductionmentioning

confidence: 99%

Approach of Model Extension for Virtual Commissioning to Predict Energy Consumption of Production Systems

Hollas,

Schenke,

Hellmich

2023

Journal of Machine Engineering

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Not only as a result of the current energy crisis, opportunities to save energy are a highly focused topic in production. For this reason, the article proposes an approach to evaluate the part-specific energy consumption of production systems by utilization of simulation methods. As an application example, a Comau 6-axis robot is chosen, of which a physically based model is created in the CAE software SimulationX. This model is then exported as a Functional Mock-Up Unit (FMU) and co-simulated within a virtual commissioning environment. Virtual commissioning enables a controller to be connected to a model. Within a Software-in-the-Loop simulation, this is a virtual control system. Based on the movement specifications from the virtual controller, the movement behaviour of the machine can be simulated in the virtual commissioning tool ISG-virtuos and the FMU returns the associated power and energy curve as a result variable. For further use, this kind of enhanced simulation models provides the possibility to optimize the utilization of production systems for specific processes in the context of a complete production line or factory.

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Section: Introductionmentioning

confidence: 99%

Approach of Model Extension for Virtual Commissioning to Predict Energy Consumption of Production Systems

Hollas,

Schenke,

Hellmich

2023

Journal of Machine Engineering

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“…However, these methods require a deeper theoretical basis, and the methods have limitations. It is still difficult to adapt to the difficult positioning problems that are often encountered in machining, such as the positioning of complex surfaces and the DOF of the workpiece combined with different surfaces [27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Geometric Theorems and Application of the DOF Analysis of the Workpiece Based on the Constraint Normal Line

Luo

Wang

Yan

2021

Advances in Materials Science and Engineering

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Aiming at the problem of judging the degree of freedom (DOF) of the workpiece in the fixture by experience, it is difficult to adapt to the analysis of the DOF of some singular workpieces. The workpiece and the fixture are used as rigid bodies, and the workpiece is allowed to move in the plane or space under the constraints of the fixture positioning point, and a set of geometric theorems for judging the DOF and overconstraint of the workpiece can be derived according to the difference in the position of the instantaneous center of the workpiece speed. The judgment of the DOF and overconstraint of the workpiece is abstracted into rules with universal meaning, which effectively overcomes the limitations of existing methods. The research results show that (1) the DOF and overconstraint of the workpiece in the fixture depend entirely on the number of positioning normal lines of the workpiece and their geometric relationship; (2) the necessary and sufficient condition for limiting the DOF of rotation of the workpiece around a certain axis is that the workpiece has a pair of parallel normal lines in the vertical plane of the axis. Using geometric theorems to judge the DOF of the workpiece is more rigorous, simple, and intuitive, which is convenient for computer-aided judgment and the reasonable layout of the positioning points of the workpiece, which can effectively avoid the misjudgment of the DOF and unnecessary overpositioning when the complex workpiece is combined and positioned on different surfaces. Several examples are used to verify the accuracy of the method and correct unreasonable positioning schemes.

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The Fully Flexible Body Shop – A Holistic Approach for the Vehicle Production of Tomorrow

et al. 2021

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Product Flexible Car Body Fixtures with Position-dependent Load Balancing Based on Finite Element Method in Combination with Methods of Artificial Intelligence

Cited by 9 publications

References 2 publications

Approach of Model Extension for Virtual Commissioning to Predict Energy Consumption of Production Systems

Approach of Model Extension for Virtual Commissioning to Predict Energy Consumption of Production Systems

Geometric Theorems and Application of the DOF Analysis of the Workpiece Based on the Constraint Normal Line

The Fully Flexible Body Shop – A Holistic Approach for the Vehicle Production of Tomorrow

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