研究成果
研究成果揭示了我国高速铁路、重载铁路和城市轨道交通的钢轨滚动接触疲劳裂纹和磨耗共存发展机理及相互关系；建立了疲劳裂纹与磨耗发展共存预测方法、基于X射线断层扫描的疲劳裂纹检测和预测方法、钢轨打磨特殊型面设计方法等；开发了钢轨非接触式激光三维扫描设备和疲劳裂纹涡流探伤设备；建立并检验了基于超声导波的断轨检测技术、基于光纤光栅和微波雷达的轨道交通基础结构监测技术，有关成果应用到高速铁路、重载铁路、既有线、地铁的钢轨伤损分析、钢轨型面设计、钢轨打磨作业和现场监测中。
获奖状况
2006年参加的“轨道几何状态质量专家评价系统”项目获上海铁路局科技进步二等奖。
2008年参加的“无缝接头状态控制及养修标准的研究”项目获上海铁路局科技进步二等奖。
2011年参加的朔黄重载铁路延长钢轨使用寿命综合技术措施” 获中国铁道学会科技进步奖一等奖。
2013年主持的“客运专线钢轨铣磨技术的研究”获上海铁路局科技进步二等奖
期刊论文
1. 周宇，张聪聪，王树国，王璞，高速道岔曲尖轨疲劳裂纹成因分析[J]，同济同济大学学报，Vol. 48 (12), 2020
2. 周宇，孙鼎人，王树国，王璞，钢轨疲劳裂纹萌生与磨耗发展共存预测中的磨耗阈值[J]，同济同济大学学报，Vol. 48 (9), 2020：1336-1343
3. 周宇，黄旭炜，王树国，王璞，考虑轨道几何不平顺的钢轨裂纹萌生与磨耗共存预测[J]，同济大学学报，Vol. 47(11), 2019：1600-1608
4. 木东升，周宇，韩延彬，郑晓峰，邝迪峰，轨道综合作业对高速铁路有砟轨道几何不平顺改善效果，交通运输工程学报，Vol. 18(5), 2018: 90-99.
5. 周宇，韩延彬，木东升，黄旭炜，摩擦系数对滚动接触疲劳裂纹萌生和磨耗影响，同济大学学报，Vol. 46 (10), 2018：1392-1402. (EI)
6. 周宇，木东升，邝迪峰，郑晓峰，韩延彬，城市轨道交通钢轨磨耗和裂纹萌生分析与选型建议，交通运输工程学报，Vol.18 (4), 2018: 1-8. (EI)
7. 周宇，木东升，韩延彬，黄旭炜，张聪聪，非线性疲劳损伤累积下钢轨裂纹萌生预测，兰州交通大学学报，Vol. 37 (3)， 2018：27-36
8. ZHOU Yu, HAN Yanbin, MU Dongsheng, el al. Prediction of the coexistence of rail head check initiation and wear growth[J]. International Journal of Fatigue, 2018, 112: 289-300. (SCI)
9. 周宇，邝迪峰，郑晓峰，韩延彬，木东升，基于三维重构的钢轨滚动接触疲劳裂纹扩展预测，机械工程学报，Vol.54 (4), 2008: 158-166. (EI)
10. Yu Zhou, Xiaofeng Zheng, Junnan Jiang, Difeng Kuang，Modeling of rail head checks by X-ray computed tomography scan technology, International Journal of Fatigue 100 (2017) 21–31.(SCI)
11. 周宇，张杰，王少峰，姜俊楠，于淼，考虑磨耗的钢轨疲劳裂纹萌生寿命预测仿真，铁道学报，Vol.38, 2016(7):91-97 (EI)
12. Yu Zhou , Miao Yu, Junnan Jiang, Effects of Rail Hardness on Rail Wear and Head Check Initiation Transportation Research Record: Journal of the Transportation Research Board, 2016. Vol.2545 (1): 55-65 (SCI)
13. 周宇，张杰，杨新文等. U75V热处理钢轨轨距角滚动接触疲劳裂纹和磨耗试验分析. 同济学报Vol.43, 2015（6）：877-881（EI）
14. 周宇，王少锋，张杰等. 轨底坡对曲线线路钢轨疲劳裂纹萌生寿命的影响. 中国铁道科学, 2015(01): 25-32 （EI检索）
15. ZHOU, Yu, WANG, Shaofeng, WANG, Tianyi, XU,Yude, Li,Zili, Field and laboratory investigation of the relationship between rail head check and wear in a heavy-haul railway[J], Wear, 2014, 315(1): 68-77. (SCI)
16. 周宇，城市轨道交通轨面短波不平顺水平谱分析，城市轨道交通研究，Vol. 17, 2014(4): 18-22, 32.
17. Lu, Xin; Makowsky, Tony W.; Eadie, Donald T.; Oldknow, Kevin; Xue, Jilian; Jia, Jinzhong; Li, Guibao; Meng, Xianhong; Xu, Yude; Zhou, Yu, Friction management on a Chinese heavy haul coal line, Proceedings of the institution of mechanical engieers part F: Journal of rail and papid transit, Vol. 226, 2012(11), 630-640. (SCI)
18. 周宇、王少锋、王庆方、许玉德，城市轨道交通钢轨表面光带异常波动分析，城市轨道交通研究，Vol. 15, 2012（10）：49-52.
19. 周宇、许玉德、曹亮，城市轨道交通钢轨表面在线整修技术的应用分析，城市轨道交通研究，2010.11：30-34.
会议论文
[1] Yu Zhou， Congcong Zhang，Xuwei Huang. Effect of the Influence Factors on Rail Head Checks Initiation and Wear Growth under Wheel-rail Stick-slip CONTACT. IAVSD，2019
[2] Y. Zhou, D. S. Mu, Y. B. Han, X. W. Huang, C. C. Zhang, Application of the Nonlinear Fatigue Damage Cumulative on the Prediction for Rail Head Checks Initiation and Wear Growth, the XIX International Colloquium on Mechanical Fatigue of Metals (ICMFM XIX), 2018.9.5-7, University of Porto, Porto, Portugal.
[3] 张聪聪，周宇*，黄旭炜，木东升，韩延彬, 高速铁路钢轨预打磨策略及伤损发展特征, 2018世界交通运输大会, 2018.6.18-21, Beijing, China.
[4] 周宇，邝迪峰，于淼，杨新文, 钢轨硬度对疲劳裂纹萌生和磨耗的影响研究, 中国力学大会-2017暨庆祝中国力学学会成立60周年大会, 2017.8.13-16, Beijing, China.
[5] Zhou Yu, Kuang Difeng, Zheng Xiaofeng，The monitoring of long-term settlement of the infrastructure and vehicle-caused dynamic response in urban rail transit, the Proceedings of 1st International Workshop on Structural Health Monitoring for Railway System, 2016.10.12-14, Qingdao, China.
[6] Yu ZHOU，Xiaofeng ZHENG，Miao YU，Difeng KUANG, Stability analysis of the track structure and its components on the slope and sharp curve, The 4th International Conference on Railway Engineering, 2016.7.30-31, Beijing, China.
[7] Yu Zhou, Junnan Jiang, Xinwen Yang, Jie Zhang, Miao Yu, Reconstruction and Modeling Method for Rail Head Checks in Heavy-Haul Railways Based on X-Ray Computed Tomography and the Extended Finite Element Method, The Fifth International Conference on Transportation Engineering (ICTE 2015), September 26-27,2015,DaLian, China, 106-113. (EI)
[8] Yu Zhou, Miao Yu, Tianyi Wang, Jie Zhang, Junnan Jiang, Design and Analysis on Rail Anti-Head Check Profile for a Curve Rail of a Heavy-Haul Railway, The Fifth International Conference on Transportation Engineering (ICTE 2015), September 26-27,2015,DaLian, China, 1245-1252. (EI)
[9] Yu ZHOU, Junnan JIANG, Xinwen YANG, Jie ZHANG, Miao YU, Rail Head Checks Propagation Model Using Computed Tomography and the Extended Finite Element Method, 10th International Conference on Contact Mechanics (CM2015), August. 30- Sept. 3, , Colorado Springs, Colorado, USA.
[10] Yu ZHOU, Jie ZHANG, Junnan JIANG, Miao YU, Rail Head Check Initiation Prediction Considering Rail Wear and Profile Changing, 10th International Conference on Contact Mechanics (CM2015), August. 30- Sept. 3, , Colorado Springs, Colorado, USA.
[11] Yu Zhou, Jie Zhang, Junnan Jiang, Miao Yu, Study and Implementation on Rail Profile Alignment Algorithm Based on 3D Scanning Data. Proceedings of the 15th Chinese Overseas Transportation Association (COTA) International Conference of Transportation Professionals, July 24-27, 2015, Beijing, China, 1942-1951. (EI)
[12] Junnan Jiang, Yu Zhou, Jie Zhang, Miao Yu, Simulation and Analysis on Stress and Deformation of Fixed Bolts in the Shear Hinge of a Floating Slab Track in Urban Rail Transit, Proceedings of the 15th Chinese Overseas Transportation Association (COTA) International Conference of Transportation Professionals, July 24-27, 2015, Beijing, China, 1872-1881. (EI)
[13] Yu Zhou, Jie Zhang, Junnan Jiang, Effect of rail profile optimization on the rail head check initiation, 94th Annual meeting of Transportation Research Borad, Washington D. C., 2015.1.11-15
[14] J. Jiang, Y. Zhou*, J. Zhang, S. Wang, Inspection method for track components defects based on image recognition in subway system, Proceedings of the 10th Asia Pacific Transportation Development Conference, Beijing, China, 2014.6: 373-380. (EI).
[15] J. Zhang, Y. Zhou*, T. Wang, J. Jiang, System design of broken rail monitoring for urban rail transit based on ultrasonic-guided wasves, Proceedings of the 10th Asia Pacific Transportation Development Conference, Beijing, China, 2014.6. (EI).
[16] S. Wang, Y. Zhou, Y. Xu, H. Li, Angles and Location of RCF Crack in Heavy Haul Railway Based on Critical Plane. Proceedings of the second international conference on railway technology (Railways 2014), Ajaccio, Corsica, France , 8-11 April 2014.
[17] Zhou, Yu, Sui, Guodong, Zhang, Jie, Wang, Shaofeng. Research on automatic monitoring system of track real-time condition of urban rail transit[C]. ICTIS 2013: Improving Multimodal Transportation Systems - Information, Safety, and Integration - Proceedings of the 2nd International Conference on Transportation Information and Safety, Wuhan, China, 2013: 1877-1893. (EI).
[18] Yu Zhou；Tianyi Wang；Shaofeng Wang，Field Studies of the Effect of Top of Rail Friction Modifier on Wheel/rail Interaction of Heavy-haul Railway，10th International Heavy Haul Association Conference,2013/1/31-2013/2/8, 329-334, New Delhi, India, 2013. (Best Paper Reward).
教材与专著
[1] 王炳龙, 杨新文, 周宇, 宫全美. 高速铁路路基与轨道工程[M](编著). 2015.2: 同济大学出版社.
[2] 宫全美, 周宇, 杨新文, 肖军华,夏唐代. 轨道交通线路工程动力学[M](编著). 人民交通出版社，2015.4.
[3] 周宇，练松良，杨新文，轨道工程[M]，中国铁道出版社，2020.12