Dynamic Wind Loading of Heliostats

Efficient Simulation of Resonance Effects for Heliostat Cost-Optimization

Authors

DOI:

https://doi.org/10.52825/solarpaces.v3i.2421

Keywords:

Central Receiver, Concentrator, Heliostat Wind Loads, Dynamic Simulation

Abstract

A method for the design of heliostats considering dynamic wind loads is presented. The transient FEM simulation is based on a CAD model of the heliostat and a pressure distribution time series measured in a wind tunnel. In order to minimise the calculation times, a simplified FEM model is used first to determine the period in which the maximum deformations occur. The stresses can then be determined for this period using a more precise model.

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References

[1] A. Pfahl and V. Dohmen, “Low-Cost Materials for Heliostats,” SolarPACES 2023 confer-ence.

[2] A. Pfahl, “Heliostat,” International patent applications PCT/EP2024/085978 and PCT/EP2024/085999.

[3] T. A. Burkhart, D. M. Andrews, and C. E. Dunning, “Finite element modeling mesh quali-ty, energy balance and validation methods: a review with recommendations associated with the modeling of bone tissue,” Journal of biomechanics, vol. 46, no. 9, pp. 1477–1488, 2013, doi: 10.1016/j.jbiomech.2013.03.022.

[4] M. Schabacker, Solid Edge 2023 für Fortgeschrittene – kurz und bündig, 3rd ed. Wiesba-den, Heidelberg: Springer Vieweg, 2023. Accessed: May 20 2024. [Online]. Available: https://link.springer.com/978-3-658-41085-8

[5] M. Peeters, G. Santo, J. Degroote, and Van Paepegem, “Comparison of Shell and Solid Finite Element Models for the Static Certification Tests of a 43 m Wind Turbine Blade,” Energies, pp. 2–19, 2018, doi: 10.3390/en11061346.

[6] J. D. Thomas, “Hex Element Aspect Ratio and Formulation,” Sandia National Laborato-ries, pp. 2–5, 2019, doi: 10.2172/1762928.

[7] C. Gebhardt, Praxisbuch FEM mit ANSYS Workbench: Einführung in die lineare und nichtlineare Mechanik., 3rd ed.: Carl Hander Verlag GmbH & Co. KG, 2018. Accessed: May 9 2024. [Online]. Available: https://www.hanser-elibrary.com/doi/ book/10.3139/9783446457409

[8] J. Rubacek, “Time Effective Transient Analysis Using ANSYS Mechanical and Matlab Simulink,” Philips Oral HealthCare, 2004. [Online]. Available: https://www.researchgate.net/file.PostFileLoader.html?id=55960a3260614be2d28b4569&assetKey= AS%3A273670398775298%401442259516350.

[9] S. Elias, V. Matsagar, and T. K. Datta, “Effectiveness of distributed tuned mass dampers for multi-mode control of chimney under earthquakes,” Engineering Structures, vol. 124, pp. 1–16, 2016, doi: 10.1016/j.engstruct.2016.06.006.

[10] F. N. Kudu, Ş. Uçak, G. Osmancikli, T. Türker, and A. Bayraktar, “Estimation of damping ratios of steel structures by Operational Modal Analysis method,” Journal of Construc-tional Steel Research, vol. 112, pp. 61–68, 2015, doi: 10.1016/j.jcsr.2015.04.019.

[11] https://www.thyssenkrupp-materials-processing-europe.com/en/c-steel/hot-strip/s235jr-s355k2/s235jr.

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Published

2025-11-26

How to Cite

Blum, J., Helmer, A. T., & Pfahl, A. (2025). Dynamic Wind Loading of Heliostats: Efficient Simulation of Resonance Effects for Heliostat Cost-Optimization . SolarPACES Conference Proceedings, 3. https://doi.org/10.52825/solarpaces.v3i.2421
Received 2024-09-09
Accepted 2025-05-20
Published 2025-11-26