Project Details
Projekt
JOINED AUTOMATIC MATERIAL EVALUATION SYSTEM and MOBILE AUTOMATIC INSPECTION DEVICE
Subject Area
Production Technology
Term
Funded in 2020
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 445127768
The major research instrumentation project proposal submitted here addresses automated non-destructive material testing and includes a mobile robot system that can be flexibly positioned in the room using air cushions. By means of a second synchronized robot, measurements on complex and large components can also be carried out in transmission. The position of both robots in the room is precisely known via a laser tracking system. The system offers a research platform to investigate the influence of robot systems on the numerous test procedures and method approaches and their test reliability. The system is initially designed for airborne ultrasonic testing, but will be expanded to include conventional ultrasonic testing, active thermography, eddy current testing, optical shearography and vibration analysis.In addition to optimizing the inspection hardware, the scanning system itself is an important factor in non-destructive component inspection. The robot path of the scanning system can be programmed directly by hand for the automated use of a repetitive component inspection. In a further step, further optimization is possible through path planning directly on the computer. The CAD data of the component to be inspected can be loaded directly into a program environment and the robot path can thus be simulated in advance. The last step in the optimization of the automated inspection process is the independent acquisition of the component geometry using an optical scanner attached to the robot arm (e.g. strip light projection). With the help of this data, a scan pattern can be created fully automatically and placed on the component geometry. A tool change to a non-destructive testing tool enables fully automatic component testing without the intermediate step of manually "teaching" the robot paths. This results in the following three classifications of the different degrees of automation for the planned projects: a) semi-automatic (robot is taught in manually), b) fully automatic (path planning is created on the computer from CAD data) and c) intelligent robot system (automated path planning using visual inspection). The research questions are also divided into the following test specific questions: 1) defect detection, 2) material characterization and 3) reliability of the test statement, which focuses primarily on materials such as plastics, composites and hybrid components. The device is used by four main users of the University of Stuttgart, the Institute of Plastics Technology, the Institute of Aircraft Construction, the Materials Testing Institute, and the Institute ofIntelligent sensor technology and theoretical electrical engineering are used for cooperative research purposes, and further external partners are planned for research cooperations.
DFG Programme
Major Research Instrumentation
Major Instrumentation
Flexible Dualroboteranlage für die zerstörungsfreie Materialprüfung
Instrumentation Group
2980 Prüfkammern (Klima, Vakuum, Vibration) und Korrosionsprüfgeräte
Applicant Institution
Universität Stuttgart
