Search Results - "Nadakatti, M. M."

Analysis of the influence of vibration frequency and amplitude on ballast bed tamping operation in railway turnout areas by Chi, Yihao, Xiao, Hong, Zhang, Zhihai, Nadakatti, M. M., Qian, Zhongxia

“…Turnout is the essential track equipment to achieve train switching. To ensure a safe and stable railway operation, it is significant to carry out scientific…”
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Experimental study and numerical simulation of the impact of under-sleeper pads on the dynamic and static mechanical behavior of heavy-haul railway ballast track by Chi, Yihao, Xiao, Hong, Wang, Yang, Zhang, Zhihai, Nadakatti, Mahantesh M.

“…Laying the under-sleeper pad (USP) is one of the effective measures commonly used to delay ballast degradation and reduce maintenance workload. To explore the…”
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Temperature Effect of Concrete Hydration Heat under Atmospheric Wind Based on Fluid-Solid Coupling by Zhang, Moyan, Xiao, Hong, Wang, Meng, Nadakatti, Mahantesh M., Chen, Peng

“…Concrete inevitably gets subjected to the effects of atmospheric wind during pouring. It is a significant factor to predict the temperature stress and gradient…”
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Influence of Uneven Subgrade Frost Heave on Deformation and Damage of CRTSIII Slab Track by Wang, Hongge, Xiao, Hong, Cui, Xuhao, Yang, Shusheng, Nadakatti, Mahantesh M., Guo, Qiang

“…The problem of uneven frost heave deformation of high-speed railway subgrade in seasonal freezing areas seriously affects the service state and service life of…”
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Field Investigation and Rapid Deterioration Analysis of Heavy Haul Corrugation by Jin, Feng, Xiao, Hong, Nadakatti, Mahantesh M, Yue, Huiting, Liu, Wanting

“…In this study, the rapid growth of corrugation caused by the bad quality of grinding works and their wavelength, depth, and evolution processes are captured…”
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The dynamic resonance under multiple flexible wheelset-rail interactions and its influence on rail corrugation for high-speed railway by Ma, Chaozhi, Gao, Liang, Xin, Tao, Cai, Xiaopei, Nadakatti, Mahantesh M, Wang, Pu

“…The wheel-rail dynamic resonance (W-RDR) under multi wheelset-rail nonlinear interactions in the mid-high frequency range is still unclear regarding wheelset…”
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Influence of span-to-depth ratio on dynamic response of vehicle-turnout-bridge system in high-speed railway by Chuanqing Dai, Tao Xin, Shenlu Qiao, Yanan Zhang, Pengsong Wang, Mahantesh M. Nadakatti

“…For high-speed railways, the smoothness of the railway line significantly affects the operational speed of trains. When the train passes through the turnout on…”
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Response analysis and effect evaluation of dynamic stabilization for ballasted track by Zhang, Zhihai, Xiao, Hong, Wang, Yang, Chi, Yihao, Nadakatti, Mahantesh M

“…•The micro migration process of ballast particles is detected using non-contact method during stabilizing operation.•A 3D coupling model of wheel-ballasted…”
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Study on control limits for track longitudinal irregularities measured by 60 m chord on high-speed railway by Xin, Tao, Dai, Chuanqing, Wang, Juguang, Yang, Fei, Nadakatti, Mahantesh M, Wang, Sen

“…The high-speed railway (HSR) operates at a high velocity, and the long-wavelength track irregularities can affect its safety and stability. The study was…”
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2D ballast particle contour generation based on the random midpoint displacement algorithm by Wang, Yang, Xiao, Hong, Ling, Xing, Nadakatti, Mahantesh M., Zhang, Zhihai, Fang, Shuwei

“…Ballast particles are an important part of the railway ballast bed. Ballast particles with irregular shapes and strong randomness are not only of significance…”
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Dynamic stability model and analysis of mechanical properties for railway operations by Hong, Xiao, Xiaoyu, Wang, zhihai, Zhang, Nadakatti, Mahantesh M., Jiaqi, Jin, Yihao, Chi

“…Dynamic track stabilizers have been widely used in the maintenance of ballast track, but limited studies have been carried out for the theoretical analysis of…”
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Mechanism of manual tamping operation for ballast bed based on DEM–MBD coupling by Qian, Zhongxia, Xiao, Hong, Feng, Ruiling, Zhang, Zhihai, Nadakatti, Mahantesh M, Fang, Jia

“…In order to study the mesoscopic mechanism of manual tamping operation on ballast bed, a simulation method for manual tamping of ballast bed was proposed, and…”
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Frequency spectrum and fatigue analysis of T-bolt fracture in DT III fastener based on Refined Model by Hong, Xiao, Jiaqi, Wang, Moyan, Zhang, Guangpeng, Liu, Nadakatti, Mahantesh M.

“…It is observed that T-bolt fracture of DT III fastener affects the safety of railway operations. The present study is aimed at finding solution to this…”
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Discrete element analysis of the effect of manual tamping operation on the mechanical properties of ballast bed by Xiao, Hong, Fang, Jia, Chi, Yihao, Zhang, Zhihai, Ma, Jianjun, Nadakatti, M.M., Wang, Xiaoyu

“…•Based on the DEM-MBD co-simulation principle, the simulation model of manual tamping of ballast track was established.•The influence of manual tamping on…”
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Experimental study and discrete element analysis on lateral resistance of windblown sand railway by Zhang, Zhihai, Xiao, Hong, Wang, Yang, Fang, Jia, Nadakatti, M.M., Wang, Haoyu

“…The lateral resistance of ballast bed is an important parameter to prevent track expansion and maintain track stability. The invasion of sand particles can…”
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Investigating the impact of tamping on ballast bed in railway turnout areas: Insights from discrete element method analysis of energy evolution by Chi, Yihao, Xiao, Hong, Zhang, Zhihai, Wang, Yang, Qian, Zhongxia, Nadakatti, M.M.

“…The tamping operation is an effective way to improve the track geometry quickly and to restore the line to an excellent operating condition. The tamping…”
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Failure simulation, test and optimization of slide plate at metro turnouts by Wang, Pengsong, Xin, Tao, Ding, Yu, Wang, Sen, Huo, Hailong, Chen, Peng, Nadakatti, M.M.

“…•Cause for welded slide plate failure was investigated and analyzed.•Optimization scheme for welded slide plate failure was proposed.•Fatigue performance of…”
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Modified data handling for rapid low‐field nuclear magnetic resonance characterization of lyotropic liquid crystal composites by Nadakatti, Suresh M.

“…A refined nuclear magnetic resonance (NMR) technique was developed to determine the relative volumetric proportions of various phases present in lyotropic…”
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Numerical investigation on compaction operations of railway gravel ballast based on DEM-MBD coupling method by Zhang, Zhihai, Xiao, Hong, Liu, Qiang, Wang, Yang, Qian, Zhongxia, Nadakatti, Mahantesh M.

“…Compaction is an essential process in the maintenance of ballasted railways. However, unreasonable operating parameters can reduce compaction efficiency and…”
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Mechanism of rail corrugation combined with friction self-excited vibration and wheel-track resonance by Wang, Yang, Xiao, Hong, Nadakatti, Mahantesh M., Wang, Xiaoyu, Fang, Shuwei

“…•Mechanism of rail corrugation generation on steel-spring floating slab track.•Analysis model of rail corrugation considering friction self-excited vibration…”
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