Transportation Geotechnics, Journal Year: 2024, Volume and Issue: unknown, P. 101479 - 101479
Published: Dec. 1, 2024
Language: Английский
International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 109928 - 109928
Published: Jan. 1, 2025
Language: Английский
Citations
2
International Journal of Mechanical Sciences, Journal Year: 2024, Volume and Issue: 281, P. 109564 - 109564
Published: July 20, 2024
Language: Английский
Citations
9
International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: 288, P. 110039 - 110039
Published: Feb. 1, 2025
Language: Английский
Citations
1
Composites Part B Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 111884 - 111884
Published: Oct. 1, 2024
Language: Английский
Citations
8
Buildings, Journal Year: 2024, Volume and Issue: 14(6), P. 1592 - 1592
Published: May 31, 2024
With continuous improvements in the social economy and living standards of individuals, vibration comfort building structures has gradually been emphasized by academic engineering communities, such as vehicle-induced vibrations buildings near traffic, human-induced large-span structures, wind-induced super-high-rise buildings, machinery-induced structural vibrations. Comfort-based analysis is distinct from traditional safety-based analysis, its theoretical systems unified guidelines have not yet established. This paper reviews recent research on comfort, including major load categories their impacts, comfort-based evaluation methods, vibration-mitigation measures. By presenting shortcomings existing research, potential topics for future study are suggested.
Language: Английский
Citations
5
Composites Part B Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 112045 - 112045
Published: Nov. 1, 2024
Language: Английский
Citations
5
Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail and Rapid Transit, Journal Year: 2025, Volume and Issue: unknown
Published: March 11, 2025
The lateral stiffness and damping of rail pads significantly influence train performance on curves, yet their effects are not well understood. This study investigates the dynamics three pad structures: groove (GRP), mesh-type (MTRP), with high (MTHDRP), impact curve performance. Results from loading tests indicate that MTHDRP exhibit highest static stiffness, dynamic ratio, while GRP have lowest, highlighting significant disparities. Finite element analysis reveals substantial deformations in under loads, leading to increased stress levels. Strategies increase across these types involve structural parameter adjustment integration harder materials, detailed further conclusions. Multibody simulations suggest decreasing increasing only increases safety curves but also reduces track system vibration. Under varying conditions speed, radius, slope, superelevation, consistently demonstrates favorable performance, underscoring importance design, manufacturing, testing, optimize vehicle curves.
Language: Английский
Citations
0
Railway Engineering Science, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 10, 2025
Abstract With the rapid development of heavy haul railway transportation technology, tunnel foundation defects and their effects on structural performance have attracted wide attention. This paper systematically investigates evolution mechanism in tunnels impact stiffness degradation through experiments numerical simulations. A train–ballasted track–tunnel basement–surround rock dynamic interaction model (TTTR model) is constructed. Firstly, study reveals four-stage process initial basement under complex environmental conditions. Experiments were conducted to measure load-bearing capacity structure different defect states. It found that defects, especially coupling loose fill with water-rich environment surrounding rock, significantly reduce bottom increase risk damage. Then, based refined simulation wheel–rail multi-scale coupled modeling TTTR was successfully constructed, its validity proven validation. time-varying technique constrained boundary substructures (CBS technique) adopted, improving computational efficiency while ensuring calculation accuracy. The also analyzes degrees void behavior train characteristics structure. finds a significant train’s operational state, track vibration displacement, stress lining structure, effect voids environment, which has greatest impact. research results this provide theoretical basis technical support for maintenance reinforcement structures.
Language: Английский
Citations
0
Mechanical Systems and Signal Processing, Journal Year: 2025, Volume and Issue: 229, P. 112510 - 112510
Published: Feb. 27, 2025
Language: Английский
Citations
0
Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(4)
Published: April 1, 2025
Currently, the primary methods for reducing noise of piston pumps are to optimize shell structure pump and increase damping. However, with a change in frequency pump, these cannot control reduction real-time, leading development existing engineering applications. In this study, vibration method piezoelectric phononic crystals (PPCs) plate laid on is proposed. First, dynamic model crystal (PPC) was established, new PPCs designed. The effects circuit parameters bandgap transmission spectrum characteristics were analyzed using finite element method. It determined that series negative capacitance shunting can adjust low-frequency broadband gap attenuation plate. Subsequently, mechanical liquid coupling axial its accuracy verified experimentally. laying not plates compared. results showed has obvious range 50–1000 Hz. comparing average total sound pressure level external field radiation two, amplitude reduced by 4.76 dB (A), main frequencies significantly reduced.
Language: Английский
Citations
0