Background of Education and Work Experience

• 2021.01-now  associate professor  College of Mechanical and Vehicle Engineering, Chongqing University

• 2016.09-2020.12  Lecturer  School of Automotive Engineering, Chongqing University

• 2011.09-2016.06 Ph. D. State key laboratory of mechanical transmission, Chongqing University (Supervisor: Datong Qin)

• 2007.09-2011.06 Bachelor School of Mechanical Engineering, Chongqing University, Chongqing

   

Research Field

• Gear transmission

• Integrated Design and Analysis of Electromechanical Transmission System for New Energy Vehicle

• Electromechanical coupling dynamics and control of new energy vehicle powertrain

Research and Honors

• Honors：

[1]LIU Changzhao (6/10), Key Technology and Application of Heavy-load Gear Transmission under Complex Loading, Science and Technology Award Committee of Shanxi Province, First Prize, 2017.(WEI Jing, FAN Weimin, SUN Wei, RU Xuebin, GUO Aigui, LIU Changzhao, CHEN Gang, CHEN Xiuhua, JI Kefeng, ZHANG Aiqiang)

[2]Liu Changzhao (6/7), Key Technology and Application of High Performance Heavy-duty Gear Transmission, China Industry-University-Research Institute Collaboration Association, China Industry-University-Research Cooperation Innovation Achievement Award, First Prize, 2017. (WEI Jing, FAN Weimin, SUN Wei, RU Xuebin, GUO Aigui, LIU Changzhao, CHEN Gang)

[3]Liu Changzhao (9/16), Key technology and industrialization of planetary gear transmission under heavy and complicated load, Chongqing university, Science and technology progress prize, first prize, 2016. (WEI Jing, QIN datong, FAN Weimin, SUN Wei, LIN Tengjiao, ZHAO Junyu, RU XueBin, GUO Aigui, LIU Changzhao, CHEN gang, CHEN Xiuhua, JI Kefeng, LI Zhen, HUANG Yongping, ZHANG Yong-ming, CHAI Xi)

[4]LIU Changzhao (1/3), Dynamic characteristics analysis of electromechanical transmission system of shearer cutting unit, 2019 F5000 paper. (LIU Changzhao, QIN Datong, LIAO Yinghua)

• Publication

LIU Changzhao, Yin X, Liao Y, et al. Hybrid dynamic modeling and analysis of the electric vehicle planetary gear system[J]. Mechanism and Machine Theory, 2020,150: 103860.

[1]LIU Changzhao, Qin D, Lim T C, et al. Dynamic characteristics of the herringbone planetary gear set during the variable speed process[J]. Journal of Sound and Vibration, 2014,333(24):6498-6515.

[2]LIU Changzhao, Qin D, Liao Y. Dynamic Model of Variable Speed Process for Herringbone Gears Including Friction Calculated by Variable Friction Coefficient[J]. Journal of Mechanical Design, 2014,136(4):41006.

[3]LIU Changzhao, Qin D, Wei J, et al. Investigation of nonlinear characteristics of the motor-gear transmission system by trajectory-based stability preserving dimension reduction methodology[J]. Nonlinear Dynamics, 2018,94(3):1835-1850.

[4]LIU Changzhao, Qin D, Liao Y. Electromechanical dynamic analysis for the drum driving system of the long-wall shearer[J]. Advances in Mechanical Engineering, 2015,7(10):1-14.

[5]LIU Changzhao, Qin D, Liao Y. Dynamic modeling and analysis of high-speed planetary gear including centrifugal force[J]. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2017,39(10):3769-3778.

[6]LIU Changzhao, Qin D, Liao Y. Electromechanical dynamic analysis for the cutting transmission system of the unmanned long-wall shearer under variable speed process[J]. Journal of Vibroengineering, 2017,19(5):3191-3206.

[7]Wang Y, LIU Changzhao, Liao Y. Electromechanical dynamic analysis for the DTC induction motor driving system of the unmanned long-wall shearer drum[J]. Cluster Computing, 2019,22(S6):13325-13336.

[8]Wang Y, LIU Changzhao, Liao Y. Electromechanical dynamic simulation and experiment for multi-stage gear transmission system with planetary gears[J]. Cluster Computing, 2019,22(S2):3031-3041.

[9]LIU Changzhao, and Datong Qin. "Dynamic Analysis of Variable Speed Process for Herringbone Planetary Gear Set in Wind Turbine." pp 111-115. Paper presented at the The JSME Symposium on Motion and Power Transmissions, Miyazaki 2013. (conference paper)

[10]LIU Changzhao, and Datong Qin. "Electromechanical Dynamic Analysis for the Motor-gear-drum System of the Unmanned Long-wall Shearer." VDI-Berichte Nr. 2055, 2015, pp 1047-1050. Paper presented at the International Conference on Gears, 2015, TUM, Munich. (conference paper)