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71 results

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Page 1
A Fault Diagnosis Method of Bogie Axle Box Bearing Based on Spectrum Whitening Demodulation.
Zheng Z, Song D, Xu X, Lei L. Zheng Z, et al. Sensors (Basel). 2020 Dec 14;20(24):7155. doi: 10.3390/s20247155. Sensors (Basel). 2020. PMID: 33327394 Free PMC article.
At the same time, the axle box bearing also exposes most of the load of the car body. Long-time high-speed rotation and heavy load make the axle box bearing prone to failure. ...Therefore, this paper is based on the vibration data of the axle bo …
At the same time, the axle box bearing also exposes most of the load of the car body. Long-time high-speed rotation and heavy …
Dynamic response of axle box bearing for high-speed train considering wheelset flexibility and polygonal wear.
Guan T, Deng X, Wang J. Guan T, et al. Sci Rep. 2023 Dec 19;13(1):22680. doi: 10.1038/s41598-023-50177-2. Sci Rep. 2023. PMID: 38114576 Free PMC article.
We found that the polygonal wheel with a rigid wheelset causes high-frequency vibration in wheelset and axle box, and increases the axle box bearing's internal contact force. ...And the resonate of wheelset will increase the local deformation of the axle …
We found that the polygonal wheel with a rigid wheelset causes high-frequency vibration in wheelset and axle box, and increases the …
A Real-Time Fault Early Warning Method for a High-Speed EMU Axle Box Bearing.
Liu L, Song D, Geng Z, Zheng Z. Liu L, et al. Sensors (Basel). 2020 Feb 4;20(3):823. doi: 10.3390/s20030823. Sensors (Basel). 2020. PMID: 32033043 Free PMC article.
First, the time-series data of the temperature-related variables of the axle box bearing is used as the input of MLSTM to predict the axle box bearing temperature in the future. Then, the deviation index of the predicted axle box bearing …
First, the time-series data of the temperature-related variables of the axle box bearing is used as the input of MLSTM to pred …
Performance Degradation Assessment of Railway Axle Box Bearing Based on Combination of Denoising Features and Time Series Information.
Liu Z, Zhang L, Xiao Q, Huang H, Xiong G. Liu Z, et al. Sensors (Basel). 2023 Jun 26;23(13):5910. doi: 10.3390/s23135910. Sensors (Basel). 2023. PMID: 37447760 Free PMC article.
The time information is usually ignored when the model processes the input signal, which affects the effect of bearing performance degradation assessment. To solve the above problems, an end-to-end performance degradation assessment model of railway axle box bear …
The time information is usually ignored when the model processes the input signal, which affects the effect of bearing performance de …
Fault Diagnosis for High-Speed Train Axle-Box Bearing Using Simplified Shallow Information Fusion Convolutional Neural Network.
Luo H, Bo L, Peng C, Hou D. Luo H, et al. Sensors (Basel). 2020 Aug 31;20(17):4930. doi: 10.3390/s20174930. Sensors (Basel). 2020. PMID: 32878207 Free PMC article.
Axle-box bearings are one of the most critical mechanical components of the high-speed train. Vibration signals collected from axle-box bearings are usually nonlinear and nonstationary, caused by the complicated operating conditions. ...
Axle-box bearings are one of the most critical mechanical components of the high-speed train. Vibration signals collected from …
A Hybrid SVD-Based Denoising and Self-Adaptive TMSST for High-Speed Train Axle Bearing Fault Detection.
Deng F, Liu C, Liu Y, Hao R. Deng F, et al. Sensors (Basel). 2021 Sep 8;21(18):6025. doi: 10.3390/s21186025. Sensors (Basel). 2021. PMID: 34577232 Free PMC article.
Fault detection of axle bearings is crucial to promote the safe, efficient, and reliable running of high-speed trains. ...The results show that the proposed algorithm has a better performance for extracting the weak fault features of axle bearing under …
Fault detection of axle bearings is crucial to promote the safe, efficient, and reliable running of high-speed trains. ...The …
Topology Optimization and Multiobjective Optimization for Drive Axle Housing of a Rear Axle Drive Truck.
Zheng B, Fu S, Lei J. Zheng B, et al. Materials (Basel). 2022 Jul 30;15(15):5268. doi: 10.3390/ma15155268. Materials (Basel). 2022. PMID: 35955204 Free PMC article.
As one of the important load-bearing components of a truck, the drive axle housing must meet the requirements of stiffness and strength. ...Firstly, the static analysis of the drive axle housing of a rear axle drive truck was carried out with four typi …
As one of the important load-bearing components of a truck, the drive axle housing must meet the requirements of stiffness and …
Precision synthesis of linear oligorotaxanes and polyrotaxanes achieving well-defined positions and numbers of cyclic components on the axle.
Masai H, Oka Y, Terao J. Masai H, et al. Chem Commun (Camb). 2022 Feb 3;58(11):1644-1660. doi: 10.1039/d1cc03507j. Chem Commun (Camb). 2022. PMID: 34927653 Review.
In such supramolecular structures, the mobility and freedom of the macrocycles are restricted by an axle and dependent on those of other macrocycles, which imparts unique functions to these threaded structures. ...Herein, we review the effective synthetic protocols and fun …
In such supramolecular structures, the mobility and freedom of the macrocycles are restricted by an axle and dependent on those of ot …
Monodirectional Photocycle Drives Proton Translocation.
Duindam N, van Dongen M, Siegler MA, Wezenberg SJ. Duindam N, et al. J Am Chem Soc. 2023 Sep 27;145(38):21020-21026. doi: 10.1021/jacs.3c06587. Epub 2023 Sep 15. J Am Chem Soc. 2023. PMID: 37712835 Free PMC article.
Light-driven synthetic systems in which a macrocyclic component transits along a nonsymmetric axle in a specific direction have been reported; however, unidirectional and repetitive translocation of protons has not been achieved. Herein, we describe a unique protonation-co …
Light-driven synthetic systems in which a macrocyclic component transits along a nonsymmetric axle in a specific direction have been …
Calix[6]arene-based atropoisomeric pseudo[2]rotaxanes.
Gaeta C, Talotta C, Neri P. Gaeta C, et al. Beilstein J Org Chem. 2018 Aug 14;14:2112-2124. doi: 10.3762/bjoc.14.186. eCollection 2018. Beilstein J Org Chem. 2018. PMID: 30202465 Free PMC article.
Upon threading hexahexyloxycalix[6]arene 1 with ammonium axles 2(+) or 3(+) , bearing biphenyl or trifluoromethylbenzyl moieties, respectively, two atropoisomeric pseudorotaxanes were formed in which the calix[6]-wheel 1 adopts the 1,2,3-alternate and cone conformations. T …
Upon threading hexahexyloxycalix[6]arene 1 with ammonium axles 2(+) or 3(+) , bearing biphenyl or trifluoromethylbenzyl moieties, res …
71 results