Explanipedia

Dynamic Modeling of the Three-Dimensional Seated Human Body for High-Speed Train Ride Comfort Analysis Open

Hanwen Xu, Xinbiao Xiao, Xiaoqing Dong, Jian Han, Peng Chen , et al. · 2025

Typically, seat or floor acceleration is used to evaluate the ride comfort of a high-speed train. However, the dynamic performance of the human body significantly differs from that of the floor. Therefore, using the car body floor and seat…

Bio-inspired helical pantograph arms for aerodynamic noise suppression in high-speed trains Open

Fangying Lou, Xinbiao Xiao, Zongfa Zhang, Jie Zhang, Xinyi Li · 2025

The pantograph is a major aerodynamic-noise source on high-speed trains, where vortices around pantograph arms and the panhead dominate sound generation. Inspired by seal whiskers and butterfly antennae, this study proposes two bio-inspire…

Innovative compact low-frequency absorber design: Integrating power-law-varying aperture into Helmholtz resonator Open

Shenghui Xu, Xinbiao Xiao, Li Li, Zefeng Wen · 2025

This study introduces an innovative design that integrates an acoustic black hole (ABH) structure into the embedded aperture (EA) of a Helmholtz resonator (HR), where the EA radius follows a power-law function. Analytical models and numeri…

Gtm-based spherical harmonics beamforming for train interior sound source identification Open

Jian Han, Xiaodan Lan, Di Wang, Xinbiao Xiao, Laixian Peng , et al. · 2025

Optimization of noise barriers in a ±500 kV switchyard: Field testing and numerical modelling Open

Li Li, Shanhui Xu, Xing Du, Cai Zeng, Meng Wei , et al. · 2025

This study investigates noise characteristics of a ±500 kV high-voltage (HV) switchyard through field testing. Noise levels and spectral properties near the reactor and fence were analyzed. An acoustic boundary element method (BEM) model w…

Sound quality control method of 110 kV transformer based on distributed variable stiffness dynamic vibration absorber Open

Cai Zeng, Xing Du, Shuaicheng Guo, Jian Han, Xiaoqiong He , et al. · 2025

Using the A-weighted sound pressure level (L_A) as the only evaluation index for transformer noise is unreasonable. To measure the actual impact of transformer noise on humans more effectively, this paper proposes to introduce th…

Sound quality control method of 110 kV transformer based on distributed variable stiffness dynamic vibration absorber Open

Cai Zeng, Xing Du, Shuaicheng Guo, Jian Han, Xiaoqiong He , et al. · 2025

Using the A-weighted sound pressure level (L_A) as the only evaluation index for transformer noise is unreasonable. To measure the actual impact of transformer noise on humans more effectively, this paper proposes to introduce th…

High frequency traction rod model and its structure-borne sound transmission characteristic of high-speed trains Open

Qi Wang, Xinbiao Xiao, Jian Han, Y. Y. Liu, Yiming Tang , et al. · 2025

With respect to high-speed trains, a significant proportion of interior noise is caused by high-frequency vibrations, which are generated at the wheel-rail contact and transmitted through the secondary suspension system in the bogie, to th…

Acoustic Comfort Assessment of High-Speed Trains Via Human Eeg Signals: A Research Study Open

Qirui Wu, Xinbiao Xiao, Moukai Liu, Jiye Zhang, Xuesong Jin · 2025

Human Vibration Comfort Analysis for a Train Entering a Tunnel Open

Zongfa Zhang, Xinbiao Xiao, Zhenxu Sun, Hanwen Xu, Fangying Lou · 2025

Design of a Broadband Low-Frequency Noise Reduction Barrier Using Acoustic Metamaterials with Application to Substations Open

Shenghui Xu, Li Li, Qi Wang, Wei Meng, Xing Du , et al. · 2025

Dynamic Analysis of Nose Landing Gear Shimmy Considering Strut Height and Experiment on the Test Platform Open

Xinbiao Xiao, Yanying Zhao, Hao Wu, G. ZHU · 2025

A Time-Frequency Feature Extraction Method for Building Vibration Monitoring Based on Data-Driven Adaptive Chirp Mode Decomposition Open

Xinbiao Xiao, Houzeng Han, Dong Li, Jian Wang, Mingyi Du , et al. · 2025

Optimization of Anti-Resonance Peaks for Time-Delay Coupled Dynamic Vibration Absorbers with Inertial Containment Open

Hao Wu, Yanying Zhao, Weikai Wang, Xinbiao Xiao · 2025

Study on the aerodynamic performance and noise of windshield area in high-speed trains at a frequency of 38 hz Open

Xinbiao Xiao, Jian Han, Laixian Peng, Jiqiang Niu, Zongfa Zhang · 2024

Sound transmission loss optimization of clamped double-panels Open

Yumei Zhang, Ye Li, Xinbiao Xiao, Yue Zhao, Dan Yao , et al. · 2024

The panel cavity structure is one of the key components of the aircraft (vehicle) body and is among the main noise transmission pathways. Based on the modal superposition and Galerkin method, this paper realizes the theoretical model of so…

Study on stiffness matching strategy of longitudinal sleeper and fastener to reduce tunnel wall vibration Open

Kuang He, Yuanpeng He, Yuyang Yao, Jian Han, Xinbiao Xiao , et al. · 2024

With the increase of the running time of the subway system, long-term use will lead to the reduction of damping, the change of the operating state of the wheels and the track, and the effect of vibration damping measures will gradually wea…

Analysis of Human Body Vibration Response on High-Speed Trains Under Crosswinds Open

Zongfa Zhang, Xinbiao Xiao, Hanwen Xu, Xuesong Jin · 2024

Identification of Key Factors Influencing Sound Insulation Performance of High-Speed Train Composite Floor Based on Machine Learning Open

Ruiqian Wang, Dan Yao, Jie Zhang, Xinbiao Xiao, Ziyan Xu · 2023

The body of a high-speed train is a composite structure composed of different materials and structures. This makes the design of a noise-reduction scheme for a car body very complex. Therefore, it is important to clarify the key factors in…

Analysis of the influence of track irregularity on high-speed train ride comfort Open

Xinbiao Xiao, Hanwen Xu, Yi Yang, Peng Chen, Qin Hu · 2023

The vibration of high-speed trains induced by track irregularities is a main factor affecting ride comfort. Especially, the long-wavelength track irregularities can reduce the passengers' ride comfort by increasing the vibration of the hig…

Effect of the Laying Order of Core Layer Materials on the Sound-Insulation Performance of High-Speed Train Carbody Open

Ruiqian Wang, Dan Yao, Jie Zhang, Xinbiao Xiao, Xuesong Jin · 2023

The design of sound-insulation schemes requires the development of new materials and structures while also paying attention to their laying order. If the sound-insulation performance of the whole structure can be improved by simply changin…

An Svm-Based Framework for Rail Short-Pitch Corrugation Detection Using Acoustic Signal Open

Jian Han, Xiaolong Liu, Xinbiao Xiao, Zefeng Wen · 2023

Influence of Low Environmental Temperature on Wheel/rail Rolling Noise of Slab High Speed Railway Open

Gong Cheng, Zongping Chen, Xinbiao Xiao, Han Jian, Xiaozhen Sheng · 2023

摘要: 中国高铁运营跨越多个气候带,且面临着向更高纬度国家输出高铁设备的契机,低温对滚动噪声的影响有必要进行系统的预测与研究。针对国内应用较广的300-1型和WJ-8型扣件,对其在不同低温时的装配动刚度和损失因子进行试验,基于试验结果和建立的板式轨道高速铁路滚动噪声预测模型,对低温条件下高速铁路滚动噪声开展研究。研究表明,随着环境温度的下降,滚动噪声对标准点等效连续A声级的贡献值也会变小,当温度达到轨垫板材料的玻璃化温度后,温度的下降对贡献值的影响变小,甚至会使滚动噪声小幅…

Study on Dynamic Modeling and Damping Characteristics of Vehicle-track Coupling Considering Resilient Wheelset Open

WANG Jia-nuo, Qi Wang, Han Jian, Xinbiao Xiao, Xuesong Jin · 2023

摘要: 弹性轮对作为一种减振降噪的轮对结构,通常用于有轨电车这类对振动噪声有较高要求的轨道交通系统。由于弹性轮对结构复杂,因此建立理想的动力学模型成为研究弹性轮对的重点和难点。建立弹性轮对车辆-轨道空间耦合动力学模型,将弹性轮对解耦为轮芯、左轮辋和右轮辋3部分,每部分均考虑6自由度,轮芯与轮辋间通过橡胶层连接。轨道系统被考虑为钢轨-轨道板-路基的多层结构,钢轨采用Timoshenko梁模拟。对比分析弹性轮对车辆和普通轮对车辆在随机谱和冲击条件下的动力学和减振特性,分析轮辋载…

The Sound Radiation from a Periodic Array of Railway Sleepers Using a Wavenumber Domain Method Open

Hui Li, Xinbiao Xiao, David Thompson, Giacomo Squicciarini · 2023

Recent advances on research into high-speed railway noise Open

Xiaozhen Sheng, Shumin Zhang, Xinbiao Xiao, Yuan He · 2023

Around 42,000 km high-speed railways are in operation in China with a maximum speed of 350 km/h. Trains which can run at 400 km/h are also under development. To control both train pass-by and train interior noise, huge resources have been …

Transmission Characteristics and Optimization of Full Path Structure Acoustic of Pantograph Area Open

LIU Fangbo, Xinbiao Xiao, Jie Zhang, Ye Li · 2023

摘要: 针对高速列车受电弓区域车内噪声显著,而受电弓顶板区域结构传声特性及对车内噪声贡献研究不足的问题,采用混合FE-SEA法,考虑"受电弓安装基座-车身型材-内饰吊装/车顶空腔-内饰顶板-车内噪声"传声全链路,建立组合顶板结构传声特性分析模型,研究力激励下的受电弓区域车内噪声响应特性及空气/结构传声特性,进而提出了相应的降噪建议。结果表明:力激励下车身型材结构产生振动声辐射,其将通过空气和结构传声路径经由内饰顶板对车内噪声形成声源贡献;车体型材对车内噪声功率输入贡献约为7…

Numerical Analysis of the Tunnel-Train-Air Interaction Problem in a Tunnel with a Double-Hat Oblique Hood Open

Zongfa Zhang, Minglu Zhang, Xinbiao Xiao · 2022

The tunnel-train-air interaction problem is investigated by using a numerical method able to provide relevant information about pressure fluctuations, aerodynamic drag characteristics and the “piston wind” effect. The method relies on a RN…

Rail Roughness Acceptance Criterion Based on Metro Interior Noise Open

Xiaolong Liu, Jian Han, Moukai Liu, Jianuo Wang, Xinbiao Xiao , et al. · 2022

Severe rail roughness leads to a series of problems in metro systems, particularly the vehicle noise problem. To ensure a better acoustic environment, rail roughness control is therefore one of the main concerns for the metro operators. Bu…

An Experimental Investigation into the Difference in the External Noise Behavior of a High-Speed Train between Viaduct and Embankment Sections Open

Muxiao Li, Tiesong Deng, Di Wang, Fan Xu, Xinbiao Xiao , et al. · 2022

Track construction is likely to exert a significant effect on railway environmental noise. In this study, a detailed comparative investigation was conducted to analyze the differences in the external noises generated by a Chinese high-spee…

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