PSI - Issue 58

Kay Büttner et al. / Procedia Structural Integrity 58 (2024) 95–101 Kay Büttner et al. / Structural Integrity Procedia 00 (2019) 000–000

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5. Conclusions The three methods shown here have resulted in an in-depth understanding of elastomer components in modern passenger cars. Requirements for elastomeric bushings can be determined much faster and more precisely by the presented model extension. The description of parameter-property relationships has been extended by data-driven methods and allows the design parameter space to be determined in the early vehicle development phase. A damage pattern specific test method with synthetic block signals allows a significant reduction of the test time by up to 85%. A new research project called ElaSenTex has been initiated to exploit the potential of elastomer components. The project aim is to measure the occurring loads in the chassis while driving. Therefore, textile patches are inserted into the bushing, which can be used to measure in situ deformations. The measurement of forces and deformations at chassis interfaces are important for describing the effective chains from wheel to body. Later, they can be used for predictive maintenance, autonomous driving and to improve advanced stability control systems. Acknowledgements This contribution is a summary of a multi-year research project at the Technical University of Dresden, which was funded by the BMW Group. References Dronka, S., Rauh, J., 2007. Modell zur Simulation von Fahrwerks-Gummilagern: Eigenschaften, Modellstruktur, Parametrierung. VDI-Berichte Nr. 2003, 371–390. Engin, Z., Coker, D., 2017. Comparison of Equivalent Stress Methods with Critical Plane Approaches for Multiaxial High Cycle Fatigue Assessment. Procedia Structural Integrity 5, 1229-1236. Ernst, S., Büttner, K., Prokop, G., 2020. New modelling method with focus on high dynamic loads, hydraulic damping and multi-axial excitation for use in load data determination using multi-body simulation. Fourth International Conference on Material and Component Performance under Variable Amplitude Loading, DVM e.V. Berlin, 447–456. Ernst, S., Schmid, F., Büttner, K., Prokop, G., 2021. New Approaches to Digitalizing the Design and Validation Process of Complex Mount Bearings with the Focus on Durability. FISITA World Congress 2021 - Technical Programme, FISITA. Ernst, S., Schramm, T., Büttner, K., Prokop, G., 2019. Neue Modellierungsmethode mit dem Fokus hoher dynamischer Belastungen, hydraulischer Dämpfung und mehraxialer Anregung zum Einsatz für die Lastdatenermittlung mit Hilfe der Mehrköpersimulation. 46. Tagung des DVM Arbeitskreises Betriebsfestigkeit, DVM e.V. Berlin, 143–158. Ernst, S., Thüringer, T., Töpel, E., Büttner, K., Prokop, G., 2021. Multiaxial characterisation and modelling of complex elastomeric mount properties for determining virtual spectrum load data. International Journal of Fatigue 150, 106312. Göbel E. F., 1969. Gummifedern. Springer Berlin Heidelberg. Hao, M.-F., Zhu, S.-P., Xia, F.-L., 2019. Multiaxial fatigue life evaluation using strain energy-based critical plane approach. Procedia Structural Integrity 22, 78-83. Rizov, V., 2022. Analysis of longitudinal fracture in a non-linear viscoelastic beam under strains changing smoothly with time. Procedia Structural Integrity 41, 134-144. Schieppati, J., Schrittesser, B., Wondracek, A., Robin, S., Holzner, A., Pinter, G., 2018. Impact of temperature on the fatigue and crack growth behavior of rubbers. Procedia Structural Integrity 13, 642-647. Steinweger, T.,2006. Einsatz der Rainflow-Filterung zur Erzeugung von omittierten Prüfsignalen für Elastomerbauteile. Kautschuk Gummi Kunststoffe Nr. 6/2004. Teyi, N., Singh, S., 2022. A Review of Application of Data Science Tools in Crack Identification and Localization. Procedia Structural Integrity 39, 608-623. Thüringer, T., Büttner, K., Prokop, G., 2019. Eine neue Methode zur Nachbildung relevanter Schädigungsmechanismen für eine effizientere Lebensdauerabsicherung von Elastomerlagern. 46. Tagung Des DVM-Arbeitskreises Betriebsfestigkeit, DVM e.V. Berlin. Thüringer, T., Büttner, K., Prokop, G., 2020. Multiaxial Block Programs: A New Method for the efficient testing of the durability of elastomeric bearings. Fourth International Conference on Material and Component Performance under Variable Amplitude Loading, DVM e.V. Berlin. Thüringer, T., Büttner, K., Prokop, G., 2021. Multiaxial Block Programs: Highly Efficient Durability Tests for Elastomeric Mountings. FISITA World Congress 2021 - Technical Programme, FISITA. Töpel E., Büttner K., Penisson C., Prokop G., 2019. Discussion of Static Calculation Methods for Chassis Bushings. 28th Aachener Kolloquium, 1661–1674.