Al-Baradoni, Nassr Mohammed Mosleh (2024)
Image-based and structure-integrated sensor for multiaxial measurement of structure deformations.
Technische Universität Darmstadt
doi: 10.26083/tuprints-00028657
Ph.D. Thesis, Primary publication, Publisher's Version
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Item Type: | Ph.D. Thesis | ||||
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Type of entry: | Primary publication | ||||
Title: | Image-based and structure-integrated sensor for multiaxial measurement of structure deformations | ||||
Language: | English | ||||
Referees: | Groche, Prof. Dr. Peter ; Weigold, Prof. Dr. Matthias | ||||
Date: | 8 November 2024 | ||||
Place of Publication: | Darmstadt | ||||
Collation: | VII, 145 Seiten | ||||
Date of oral examination: | 15 October 2024 | ||||
DOI: | 10.26083/tuprints-00028657 | ||||
Abstract: | Automated process chains in Industry 4.0 lead to increasing relevance for data acquisition to control forces and torques in many manufacturing processes. By measuring process forces and moments, it is possible to implement control approaches and, thus, more accurately obtain selected product characteristics. Moreover, the use of sensors is increasing to enable digital structural monitoring approaches and predictive maintenance. However, poor accessibility, error-prone measurement positions, or harsh environments typically prevent the use of external sensors for the accurate measurement of load conditions in load-bearing structures or process forces/moments in manufacturing machines. Structure and machine elements with integrated sensors permit the direct measurement of process forces and moments on the structural components or machine tools without affecting their mechanical functionality. According to the latest research, the integration of electromechanical transducers, such as strain gauge-based or piezoelectric transducers, into passive metallic structures by various methods, especially forming technology, has proven to be particularly promising. However, while these solutions have excellent potential, their widespread implementation is hampered by the limited performance of the sensors, such as high-resolution detection of the direction and magnitude of the applied loads, and their associated high cost. This dissertation undertakes an investigation into the viability of employing optical image-based measurement concepts for measuring structural deformation under external loads, with the aim of realizing cost-effective and, at the same time, multiaxial sensor load-bearing structures and machine elements. A specialized measurement concept is developed, and relevant system design parameters are identified in a systematic manner. In addition, a process design is investigated for the integration of sensitive optical elements into metallic structures by rotary swaging, taking into consideration the respective requirements for positional accuracy. The dissertation concludes by highlighting the overall potential of optical image-based sensors for the comprehensive detection of multiaxial loads in structures and machine elements, thereby paving the way for the widespread integration of sensor structures and machine elements in various application domains. |
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Uncontrolled Keywords: | sensory machine elements, precise joining by forming | ||||
Status: | Publisher's Version | ||||
URN: | urn:nbn:de:tuda-tuprints-286578 | ||||
Classification DDC: | 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering | ||||
Divisions: | 16 Department of Mechanical Engineering > Institute for Production Engineering and Forming Machines (PtU) 16 Department of Mechanical Engineering > Institute for Production Engineering and Forming Machines (PtU) > Process chains and forming units |
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Date Deposited: | 08 Nov 2024 13:43 | ||||
Last Modified: | 11 Nov 2024 06:53 | ||||
URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/28657 | ||||
PPN: | 52343619X | ||||
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