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D. Heine¹, T. Miyachi², G. Heine¹ and Y. Yamauchi²

¹, German Aerospace Center e.V., Niedersachsen - Göttingen, Deutschland
²Aerodynamics and acoustic division, Heat and air flow analysis, Railway Technical Research Institute, Japan

doi:10.4203/ccc.15.5.2

D. Heine, T. Miyachi, G. Heine, Y. Yamauchi, "Study of the Pressure Loads on Noise Barriers Using Moving Model Rig Tests", in J. Pombo, (Editor), "Proceedings of the Seventh International Conference on Railway Technology: Research, Development and Maintenance ", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 15, Paper 5.2, 2026, doi:10.4203/ccc.15.5.2

Keywords: high-speed train, noise barrier, aerodynamic loads, moving-model test, head pressure pulse, pressure amplitude.

Abstract

In this paper, the loads on noise barriers adjacent to a high-speed railway line are discussed on the basis of experimental test results gained using a moving-model rig. Two different barrier heights as well as three train speeds were tested, the train model was generic. The tests showed that the pressure amplitude at the barrier, which is resulting in the load on the barrier, is mainly induced by the train head passing the test position. Typically, the pressure measured near the ground is higher than near the top of the barrier because of the ground effect. It was found that due to the higher obstruction the higher noise barrier leads to higher pressure amplitudes. The loads increase for increasing speed, in the test even more than expected due to a Mach-Number effect. A comparison of the tested results with the assumption given in the European and the Japanese Standard for loads on noise barriers showed, that both assumptions overestimate the pressure amplitudes slightly, whereas the safety coefficient is higher for the Japanese Standard.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 15 PROCEEDINGS OF THE SEVENTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 5.2 Study of the Pressure Loads on Noise Barriers Using Moving Model Rig Tests D. Heine¹, T. Miyachi², G. Heine¹ and Y. Yamauchi² ¹, German Aerospace Center e.V., Niedersachsen - Göttingen, Deutschland ²Aerodynamics and acoustic division, Heat and air flow analysis, Railway Technical Research Institute, Japan doi:10.4203/ccc.15.5.2 Full Bibliographic Reference for this paper D. Heine, T. Miyachi, G. Heine, Y. Yamauchi, "Study of the Pressure Loads on Noise Barriers Using Moving Model Rig Tests", in J. Pombo, (Editor), "Proceedings of the Seventh International Conference on Railway Technology: Research, Development and Maintenance ", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 15, Paper 5.2, 2026, doi:10.4203/ccc.15.5.2 Keywords: high-speed train, noise barrier, aerodynamic loads, moving-model test, head pressure pulse, pressure amplitude. Abstract In this paper, the loads on noise barriers adjacent to a high-speed railway line are discussed on the basis of experimental test results gained using a moving-model rig. Two different barrier heights as well as three train speeds were tested, the train model was generic. The tests showed that the pressure amplitude at the barrier, which is resulting in the load on the barrier, is mainly induced by the train head passing the test position. Typically, the pressure measured near the ground is higher than near the top of the barrier because of the ground effect. It was found that due to the higher obstruction the higher noise barrier leads to higher pressure amplitudes. The loads increase for increasing speed, in the test even more than expected due to a Mach-Number effect. A comparison of the tested results with the assumption given in the European and the Japanese Standard for loads on noise barriers showed, that both assumptions overestimate the pressure amplitudes slightly, whereas the safety coefficient is higher for the Japanese Standard. download the full-text of this paper (PDF, 11 pages, 757 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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