Results 11 to 20 of about 198,570 (292)
Chinese Journal of Mechanical Engineering, 2023 This study uses the digital image correlation technique to measure the crack tip displacement field at various crack lengths in U71MnG rail steel, and the interpolated continuous displacement field was obtained by fitting with a back propagation (BP ...
Jian Li +6 more
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An approach for simulating the air brake system of long freight trains based on fluid dynamics
Railway Engineering Science, 2022 Air brake systems are critical equipment for railway trains, which affects the running safety of the trains significantly. To study air braking characteristics of long freight trains, an approach for simulating air brake systems based on fluid dynamics ...
Xin Ge +4 more
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The Journal of Bone and Joint Surgery. British volume, 1970 1. The usefulness of the halo method of traction in orthopaedic surgery, neurosurgery and plastic surgery is not widely appreciated. 2. Modifications of the apparatus are described and the technique of application is detailed. 3. Some advantages of the method are discussed.
A P, Pieron, W R, Welply
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Railway Engineering Science, 2023 Low-frequency carbody swaying phenomenon often occurs to railway vehicles due to hunting instability, which seriously deteriorates the ride comfort of passengers.
Yixiao Li +3 more
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A numerical study on tread wear and fatigue damage of railway wheels subjected to anti-slip control
Friction, 2023 Tread wear and rolling contact fatigue (RCF) damage propagated on railway wheels are the two extremely important focal points as they can tremendously deteriorate wheel/rail interactions and hunting stability and destroy wheel surface materials, and ...
Yunfan Yang +3 more
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Research on the Influence of Multiple Parameters on the Responses of a B-type Subway Train
Chinese Journal of Mechanical Engineering, 2022 To obtain improved comprehensive crashworthiness criteria for a B-type subway train, the influence laws of the vehicle design collision weight M and empty stroke D on the train’s collision responses were investigated, and multi-objective optimization and
Yanwen Liu +5 more
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Shock and Vibration, 2021 In this study, a non-Gaussian excitation acceleration method is proposed, using aluminum alloy notched specimens as a research object and measured acceleration signal of a certain airborne bracket, during aircraft flight as input excitations, based on ...
Kuanyu Chen +4 more
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Shock and Vibration, 2021 Minimum correlated generalized Lp/Lq deconvolution (MCG-Lp/Lq-D) is an important tool to detect periodic impulses in vibration mixture. It is proved to be a more stable technique than maximum correlated kurtosis deconvolution (MCKD) to recover the fault ...
Qiuyang Zhou +3 more
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Step-by-Step Numerical Prediction of Aerodynamic Noise Generated by High Speed Trains
Chinese Journal of Mechanical Engineering, 2022 In this paper, the unsteady flow around a high-speed train is numerically simulated by detached eddy simulation method (DES), and the far-field noise is predicted using the Ffowcs Williams-Hawkings (FW-H) acoustic model.
Tian Li +3 more
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On the Scale Size of the Aerodynamic Characteristics of a High-Speed Train [PDF]
Journal of Applied Fluid Mechanics, 2022 In the wind tunnel test of trains, the scale size changes the Reynolds numbers of trains, which may affect the aerodynamic characteristics of the train.
C. Chang, T. Li, D. Qin, J. Zhang
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