Comparison of Vibration Amplitude in Isfahan Subway Due to Track Structure- An Experimental Study

ADMT Journal

دوره 16، شماره 3، آذر 2023، صفحه 19-29   

نوع مقاله: Original Article

شناسه دیجیتال (DOI): 10.30486/admt.2023.1973746.1392

نویسندگان

sajjad sattari؛ Mohammad Saadat^* ؛ Sayed Hasan Mirtalaie؛ mahdi salehi؛ ali soleimani

Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran

چکیده

Increasing the stability of structures and reducing the maintenance cost of slab track superstructures compared to ballasted tracks are among the reasons for the tendency to use this category of superstructures in the railway industry. Vibration reduction methods can be divided into three categories, source, propagation path, and receiver. In general, the slab track structures in Iran are divided into three categories: direct fixation track (DFT), floating slab track (FST), and high resilient fastener (HRF). Although railway tracks are a safe, economical and fast transportation system and can lead to the strengthening of the tourism industry, in the long term, vibrations can damage many historical structures in the city of Isfahan. FST and HRF systems are used in the structure of Isfahan subway track. In this paper, the accelerations (longitudinal, lateral, and vertical) of the Isfahan subway vehicle were measured in 30 stations (15 go stations and 15 return stations). The results showed that the HRF system compared to the FST has a significant effect in reducing the range of vibrations and ultimately the safety of the train and the ride comfort. For example, in the area between Si-O-Se-Pol and Imam Hossein Square, due to the track structure type (HRF), the maximum acceleration and RMS acceleration are in the range of 1.5 and 0.3 m/s², respectively, while in other stations these values were extracted up to 4 and 0.7 m/s², respectively.

کلیدواژه‌ها

Fastening Systems؛ Floating Slab Track؛ Isfahan Subway؛ Vibrations

مراجع

• Sadeghi, J., Ballasted Railway Tracks: Fundamentals of Analysis and Design, ed. 3, Iran University of Science and Technology, 2019.
• Sadeghi, J., Khajehdezfuly, A., and Moghadasnejad, F., Railway Concrete Slab Track: Fundamentals of Analysis and Design, ed. 1, Iran University of Science and Technology, 2018.
• Esmaeili, M., Heydari Noghabi, H., and Mosayebi, A., Principle and Foundation of Railway Ballastless Tracks, ed. 1, Iran University of Science and Technology, 2016.
• Sadeghi, J., Khajehdezfuly, A., Esmaeili, M., and Poorveis, D., Investigation of Rail Irregularity Effects on Wheel/Rail Dynamic Force in Slab Track: Comparison of Two-And-Three-Dimensional Models, Journal of Sound and Vibration, Vol. 374, 2016, pp. 228-244.
• Ma, D., Shi, J., Yan, Z., and Sun, L., Failure Analysis of Fatigue Damage for Fastening Clips in The Ballastless Track of High-Speed Railway Considering Random Track Irregularities, Engineering Failure Analysis, Vol. 131, 2022, pp. 105897.
• Blanco-Lorenzo, J., Santamaria, J., Vadillo, E. G., and Oyarzabal, O., Dynamic Comparison of Different Types of Slab Track and Ballasted Track Using a Flexible Track Model, Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, Vol. 225, No. 6, 2011, pp. 574-592.
• Zhao, C., Ping, W., Effect of Elastic Rubber Mats on The Reduction of Vibration and Noise in High-Speed Elevated Railway Systems, Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, Vol. 232, No. 6, 2018, pp. 1837-1851.
• Kumar, V., Vikas, R., Investigation of Vertical Dynamic Behaviour and Modelling of a Typical Indian Rail Road Vehicle Through Bond Graph, World Journal of Modelling and Simulation, Vol. 5, No. 2, 2009, pp. 130-138.
• Graa, M., Nejlaoui, M., Houidi, A., Affi, Z., and Romdhane, L., Modeling and Simulation for Vertical Rail Vehicle Dynamic Vibration with Comfort Evaluation, Multiphysics Modelling and Simulation for Systems Design and Monitoring, Vol. 2015, pp. 47-57.
• Sadeghi, J., Seyedkazemi, M., and Khajehdezfuly, A., Effect of Uncertainty of Fastening Systems Properties on Wheel/Rail Dynamic Force, Latin American Journal of Solids and Structures, Vol. 18, No.5, 2021, pp. 1-20.
• Sadeghi, J., Rabiee, S., and Khajehdezfuly, A., Development of Train Ride Comfort Prediction Model for Railway Slab Track System, Latin American Journal of Solids and Structures, Vol. 17, No. 07, 2020, doi.org/10.1590/1679-78256237.
• Sadeghi, J., Esmaeili, M., Effectiveness of Track Stiffness Reduction in Attenuation of Metro Induced Vibrations Received by Historical Buildings, Latin American Journal of Solids and Structures, Vol. 15, No. 11, 2018, doi.org/10.1590/1679-78255252.
• Sadeghi, J., Liravi, H., and Esmaeili, M., Experimental Investigation on Loading Pattern of Railway Concrete Slabs, Construction and Building Materials, Vol. 153, 2017, pp. 481-495.
• Sadeghi, J., Esmaeili, M., Safe Distance of Cultural and Historical Buildings from Subway Lines, Soil Dynamics and Earthquake Engineering, Vol. 96, 2017, pp. 89-103.
• Bracciali, A., Piccioli, F., and Benedetto, L., Rail Straightness Control in Service, The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing, 2011, DOI: 10.4203/ccp.96.18.
• Takemiya, H., Fujiwara, A., Wave Propagation/Impediment in A Stratum and Wave Impeding Block (WIB) Measured for Ssi Response Reduction, Soil Dynamics and Earthquake Engineering, Vol. 13, No. 1, 1994, pp. 49-61.
• Antes, H., Von Estorff, O., Dynamic Response of 2D and 3D Block Foundations on A Halfspace with Inclusions, Soil Dynamics and Earthquake Engineering, Vol. 13, No. 5, 1994, pp. 305-311.
• Ahmad, S., Al‐Hussaini, T. M., Simplified Design for Vibration Screening by Open and In-Filled Trenches, Journal of Geotechnical Engineering, Vol. 117, No. 1, 1991, pp. 67-88.
• Çelebi, E., Fırat, S., Beyhan, G., Çankaya, I., Vural, I., and Kırtel, O., Field Experiments on Wave Propagation and Vibration Isolation by Using Wave Barriers, Soil Dynamics and Earthquake Engineering, Vol. 29, No. 5, 2009, pp. 824-833, doi.org/10.1016/j.soildyn.2008.08.007.
• With, C., Bahrekazemi, M., and Bodare, A., Wave Barrier of Lime–Cement Columns Against Train-Induced Ground-Borne Vibrations, Soil Dynamics and Earthquake Engineering, Vol. 29, No. 6, 2009, pp. 1027-1033.
• Kaewunruen, S., Remennikov, A., Monitoring Structural Degradation of Rail Pads in Laboratory Using Impact Excitation Technique, Engineering, 2005, Corpus ID: 55121358.
• Nelson, J. T., Recent Developments in Ground-Borne Noise and Vibration Control, Journal of Sound and Vibration, Vol. 193, No. 1, 1996, pp. 367-376.
• Schneider, P., Bolmsvik, R., and Nielsen, J. C. O., In Situ Performance of a Ballasted Railway Track with Under Sleeper Pads, Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, Vol. 225, No. 3, 2011, pp. 299-309.
• Marschnig, S., Veit, P. G., Making a Case for Under-Sleeper Pads, International Railway Journal, Vol. 51, 2011, pp. 27-29.
• Kraśkiewicz, C., Oleksiewicz, W., Płudowska-Zagrajek, M., and Lipko, C., Overview of Vibroacoustic Isolators Used in Railway Tracks, MATEC Web of Conferences, Vol. 219, 2018, pp. 05001.
• Esmaeili, M., Naeimi, M., Soltani, B. and Afsartaha, M., Reducing Slab Track Vibrations by Using Asphalt Concrete in the Substructure, Joint Rail Conference, 2016, DOI: 10.1115/JRC2016-5766.
• Kraśkiewicz, C., Lipko, C., Płudowska, M., Oleksiewicz, W., and Zbiciak, A., Static and Dynamic Characteristics of Resilient Mats for Vibration Isolation of Railway Tracks, Procedia Engineering, Vol. 153, 2016, pp. 317-324.
• Sung, D., Chang, S., Nonlinear Behavior of Rail Fastening System on Slab Track at Railway Bridge Ends: FEA and Experimental Study, Engineering Structures, Vol. 195, 2019, pp. 84-95.
• Grassie, S. L., Resilient Railpads: Their Dynamic Behaviour in the Laboratory and on Track, Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, Vol. 203, No. 1, 1989, pp. 25-32.
• Wei, G., Wang, Y., Jiang, J., Zhang, R., and Ding, Z., Effect of Dowel Joints on Dynamic Behavior of Train–Discrete Floating Slab Track System, Advances in Mechanical Engineering, Vol. 10, No. 3, 2018, pp. 1687814018767010, DOI: 10.1177/1687814018767010.
• Sattari, S., Saadat, M., Mirtalaie, SH., Salehi, M., and Soleimani, A., Modeling a Passenger Train and Analyzing the Ride Comfort in Different Conditions with The Sperling Index, 2nd International Conference on Computer Engineering and Science (CCES), 2022.
• Sattari, S., Saadat, M., Mirtalaie, SH., Salehi, M., and Soleimani, A., Evaluation of Sperling’s Index in Passenger and Freight Trains Under Different Speeds and Track Irregularities, International Journal of Advanced Design and Manufacturing Technology (ADMT), Vol. 15, No. 4, 2022, pp. 87-96, DOI: 10.30486/admt.2023.1963242.1367.
• Sattari, S., Saadat, M., Mirtalaie, SH., Salehi, M., and Soleimani, A., Modeling of a Rail Suspension System to Investigate Vertical Vibration and Effective Parameters on It, International Journal of Railway Research, Vol. 9, No. 2, 2022, pp. 1-20, DOI: 10.22068/ijrare.299.