6/30/2023 0 Comments Windshield fluid sign![]() ![]() Nakhchi, M.E., Rahmati, M.: Direct numerical simulations of flutter instabilities over a vibrating turbine blade cascade. In: Proceedings of 21st Army Science Conference, Norfolk, Virginia (1998) 130, 1–16 (2019)īenney, R.J., Stein, K., Kalro, V., Tezduyar, T., Leonard, J.W., Accorsi, M.L.: Parachute performance simulations: a 3D fluid-structure interaction model. Niu, J., Wang, Y., Zhou, D.: Effect of the outer windshield schemes on aerodynamic characteristics around the car-connecting parts and train aerodynamic performance. Acoustical Society of America (2013)ĭai, W., Zheng, X., Hao, Z., Qiu, Y., Li, H., Luo, L.: Aerodynamic noise radiating from the inter-coach windshield region of a high-speed train. In: Proceedings of Meetings on Acoustics ICA2013, vol. Noh, H.M., Koh, H.I., Kim, S.W., Chang, S.H.: Aerodynamic noise reduction of a gangway in a high-speed train. Horiuchi, M.: Outline of shinkansen high-speed test train Type E955 (FASTECH360Z). RTRI 48(4), 229–235 (2007)įremion, N., Vincent, N., Jacob, M., Robert, G., Louisot, A., Guerrand, S.: Aerodynamic noise radiated by the intercoach spacing and the bogie of a high-speed train. Yamazaki, N., Takaishi, T.: Wind tunnel tests on reduction of aeroacoustic noise from car gaps and bogie sections. Mizushima, F., Takakura, H., Kurita, T., Kato, C., Iida, A.: Experimental investigation of aerodynamic noise generated by a train-car gap. Xia, Y., Liu, T., Gu, H., Guo, Z., Chen, Z., Li, W., Li, L.: Aerodynamic effects of the gap spacing between adjacent vehicles on wind tunnel train models. Yang, J., Jiang, C., Gao, Z.L.Y., Zhang, J., Lee, C.: Influence of inter-car wind-shield schemes on aerodynamic performance of high-speed trains. ![]() Peters, J.L.: Optimizing aerodynamics to raise IC performance. Shiraishi, H., Watanabe, S., Horiuchi, M.: Improvement of smooth covers between cars for Shinkansen high-speed test trains. Li, X., Chen, G., Wang, Z., Xiong, X., Liang, X., Yin, J.: Dynamic analysis of the flow fields around single-and double-unit trains. 16, 47–55 (2010)īell, J.R., Burton, D., Thompson, M.C., Herbst, A.H., Sheridan, J.: The effect of tail geometry on the slipstream and unsteady wake structure of high-speed trains. Kurita, T., Mizushima, F.: Environmental measures along Shinkansen lines with FASTECH360 high-speed test trains. Tian, H.: Review of research on high-speed railway aerodynamics in China. Schetz, J.A.: Aerodynamics of high-speed trains. Unsteady Reynolds average Navier–Stokes PSD: Improved delayed detached eddy simulation URANS: This study can provide a reference for the study of aeroelastic problems of the external structure of HSTs. Then, under the coupling action of aerodynamic, elastic, and inertial forces, the vibration mode close to the high-order natural frequency of the outer windshield structure is excited, and the displacement phase of the outer windshield presents prominent periodicity. Under the action of aerodynamic loading, two opposite U-section rubber capsules produce dislocation deformation movement, which produces bending deformation, and the deformation vibration frequency is close to the first-order natural frequency of the structure. The relative deviation of the surface pressure of the outer windshield between the test and simulation is 4.3%, and the relative deviation of the main frequency of pressure change is 1.9%. ![]() The results show that the iterative computing of two-way coupling has good applicability for the analysis of the vibration of the outer windshields of a high-speed train (HST). The purpose of this study is to establish a two-way iterative FSI model based on a full-scale test, obtain the flow field characteristics around the outer windshields through FSI simulation, and analyze their vibration mechanism and characteristics. Previous studies normally treat the outer windshield structure as rigid bodies, and the coupling effect between unsteady flow and elastic structure has not been considered. ![]() Strong excitation effect on the outer windshield structure induced by unsteady airflow around the connection between carriages has been normally detected in full-scale tests, which leads to violent vibration of the outer windshields due to strong nonlinear fluid–structure interaction (FSI) between the flow field and the structure. ![]()
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