Thermal effects compensation and associated uncertainty for large magnet assembly precision alignment

Doytchinov, Iordan; Shore, Paul; Nicquevert, B.; Tonnellier, Xavier; Heather, Andrew; Modena, M.

doi:10.1016/j.precisioneng.2019.06.005

Cited by 7 publications

(2 citation statements)

References 17 publications

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“…The authors in [45] found several gaps in knowledge that limit this possibility. Among them was the lack of uncertainty definitions to compensate for the thermal error applied to correct the instability of assembly dimensions, after metrology, as well as in assembly and alignment time.…”

Section: Application Of Digital Twins For Particle Acceleratorsmentioning

confidence: 99%

Digital Twins in Large-Scale Scienti c Infrastructure Projects

2023

JSFI

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The article provides an overview of publications on the topic of Digital Twins of largescale scientific infrastructure. History, basic concepts and definition of Digital Twins are given. Main terminology in the field of big science and large-scale scientific infrastructure is also described. In Russian practice, the large-scale scientific infrastructure projects are often referred to as "megascience installations". Such installations usually include facilities for research in areas such as astronomy and high-energy physics. The research infrastructure is a complex of construction facilities, engineering systems, precise control and measuring equipment, characterized by high complexity and strict requirements for all operational parameters. In addition, these facilities are associated with high operating costs, are sensitive to minor changes in their condition and environmental conditions, and carry the risk of data loss during long-term and unique experiments. Then, information about the use of Digital Twins in large scale astrophysical projects and also for particle accelerators control and tuning is provided. Potential areas of application of Digital Twins in large projects of scientific infrastructure are summarized. Necessary information about the Siberian Circular Photon Source (SKIF, in Russian) is given. On the basis of the review, and goals and objectives for the Digital Twin of the SKIF are determined. An analysis of the necessary computing resources and data storage volume is also carried out.

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Section: Application Of Digital Twins For Particle Acceleratorsmentioning

confidence: 99%

Digital Twins in Large-Scale Scienti c Infrastructure Projects

2023

JSFI

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“…Frequently missed in uncertainty budgets for alignment measurements, thermal errors and the uncertainty of any compensations applied can be critical for high precision alignment. Thus, for high precision applications, not only accurate alignment metrology is important but also precision compensation effects [23].…”

Section: Introductionmentioning

confidence: 99%

Metrology and Measurement Systems

2021

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Reliable measurement uncertainty is a crucial part of the conformance/nonconformance decision-making process in the field of Quality Control in Manufacturing. The conventional GUM-method cannot be applied to CMM measurements primarily because of lack of an analytical relationship between the input quantities and the measurement. This paper presents calibration uncertainty analysis in commercial CMM-based Coordinate Metrology. For the case study, the hole-plate calibrated by the PTB is used as a workpiece. The paper focuses on thermo-mechanical errors which immediately affect the dimensional accuracy of manufactured parts of high-precision manufacturers. Our findings have highlighted some practical issues related to the importance of maintaining thermal equilibrium before the measurement. The authors have concluded that the thermal influence as an uncertainty contributor of CMM measurement result dominates the overall budgets for this example. The improved calibration uncertainty assessment technique considering thermal influence is described in detail for the use of a wide range of CMM users.

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