Author
Xinbiao Xiao
Other affiliations: Guangdong University of Technology
Bio: Xinbiao Xiao is an academic researcher from Southwest Jiaotong University. The author has contributed to research in topics: Track (rail transport) & Noise. The author has an hindex of 21, co-authored 85 publications receiving 1321 citations. Previous affiliations of Xinbiao Xiao include Guangdong University of Technology.
Topics: Track (rail transport), Noise, Vibration, Derailment, Train
Papers published on a yearly basis
Papers
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TL;DR: In this article, a self-powered wireless smart sensor, powered by vibration energy of trains via a maglev porous nanogenerator (MPNG) when the train is running, is reported.
137 citations
TL;DR: This work provides a facile and cost-effective route for functionalized natural biowaste-based carbon materials and further opens up a way for highly value-added recycling of biowast-like materials.
71 citations
TL;DR: In this article, a 3D dynamic model of a high-speed train coupled with a flexible ballast track is developed and is presented in this model, each vehicle is modeled as a 42 degrees of freedom multi-body system, which takes into consideration the nonlinear dynamic characteristics of the suspensions.
Abstract: A 3D dynamic model of a high-speed train coupled with a flexible ballast track is developed and is presented in this study. In this model, each vehicle is modeled as a 42 degrees of freedom multi-body system, which takes into consideration the nonlinear dynamic characteristics of the suspensions. A detailed inter-vehicle connection model including nonlinear couplers and inter-vehicle dampers, and the linear tight-lock vestibule diaphragm is established to simulate the effect of the end connections of neighboring vehicles on dynamic behavior. The track is modeled as a traditional three-layer discrete elastic support model. The rails are assumed to be Timoshenko beams supported by discrete sleepers. Each sleeper is treated as an Euler beam and the ballast bed is replaced by equivalent rigid ballast bodies. The reliability of the present model is then validated through a detailed numerical simulation comparison with the commercial software SIMPACK, with the effect of the track flexibility on the train/track interaction being analyzed simultaneously. The proposed model is finally applied to investigate the difference between dynamic performances obtained using the entire-train/track model (TTM) and the single-vehicle/track model (VTM). Several key dynamic performances, including vibration frequency response, ride comfort, and curving performance, calculated by the two types of dynamic models are compared and discussed. The numerical results show that there is a significant difference between the dynamic behaviors obtained by VTM and TTM, and that inter-vehicle connections have an important influence on the dynamic behavior of high-speed vehicles.
70 citations
TL;DR: In this article, a numerical model for dynamic vehicle-track interaction at rail welds with longitudinal surface irregularity is presented, and the model is applied to calculate the dynamic wheel-rail contact forces and the sizes and locations of the contact areas.
70 citations
TL;DR: In this paper, the effect of railway track imperfections on track dynamic behavior is investigated through a numerical simulation, where the authors consider a 3-layer model with a Timoshenko beam resting on discrete sleepers and show that gaps between the unsupported sleepers have a great influence on the normal load of the wheel and the rail.
66 citations
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1,604 citations
TL;DR: Li et al. as mentioned in this paper designed a flexible self-powered piezoelectric sensor (PES) based on the cowpea-structured PVDF/ZnO nanofibers for remote control of gestures in human-machine interactive system.
300 citations
Journal Article•
TL;DR: In this article, three kinds of wind tunnel tests were made to evaluate the aerodynamic characteristics of typical configurations of the vehicles on typical configuration of infrastructures such as bridges and embankments.
Abstract: The aerodynamic characteristics of train/vehicles under cross winds depend on not only the shapes of the vehicles but also those of infrastructures. Accordingly three kinds of wind tunnel tests were made to evaluate the aerodynamic characteristics of typical configurations of the vehicles on typical configurations of infrastructures such as bridges and embankments. The main results obtained from the wind tunnel tests are summarized below. 1. The aerodynamic side force coefficient of the vehicle increases more as the thickness of the bridge girder becomes larger. It also increases more as the roof of the vehicle becomes edgier. 2. The aerodynamic characteristics of the vehicle on the embankment depend on the distribution of the boundary layer on the ground. The aerodynamic side force coefficient of the vehicle on a high embankment is larger than that on a low embankment.
242 citations
TL;DR: Train-track-bridge dynamic interaction is a fundamental concern in the field of railway engineering, which plays an extremely important role in the optimal design of railway bridges, especially in this article.
Abstract: Train–track–bridge dynamic interaction is a fundamental concern in the field of railway engineering, which plays an extremely important role in the optimal design of railway bridges, especially in ...
222 citations
TL;DR: This work reports a stable, cost-effective, and scalable approach to improve the performance of the triboelectric nanogenerator for wearable biomechanical energy harvesting, thus rendering a sustainable and pervasive energy solution for on-body electronics.
Abstract: As the world marches into the era of the Internet of Things (IoT), the practice of human health care is on the cusp of a revolution, driven by an unprecedented level of personalization enabled by a variety of wearable bioelectronics A sustainable and wearable energy solution is highly desired , but challenges still remain in its development Here, we report a high-performance wearable electricity generation approach by manipulating the relative permittivity of a triboelectric nanogenerator (TENG) A compatible active carbon (AC)-doped polyvinylidene fluoride (AC@PVDF) composite film was invented with high relative permittivity and a specific surface area for wearable biomechanical energy harvesting Compared with the pure PVDF, the 08% AC@PVDF film-based TENG obtained an enhancement in voltage, current, and power by 25, 35, and 98 times, respectively This work reports a stable, cost-effective, and scalable approach to improve the performance of the triboelectric nanogenerator for wearable biomechanical energy harvesting, thus rendering a sustainable and pervasive energy solution for on-body electronics
202 citations