Education

PhD, Tsinghua University, Materials Science and Technology, 2011

B.S., Tsinghua University, Mechanical Engineering and Automation, 2005

Work Experience

01/2018 – present, Research Associate Professor, Division of Magnetic Bearing Technology, INET

04/2011 – 12/2017, Research Assistant Professor, Division of Magnetic Bearing Technology, INET

Social service

Teaching

Journal Reviewer

Measurement

Annals of Nuclear Energy

Applied Computational Electromagnetics Society Journal

International Journal of Applied Electromagnetics and Mechanics

Review of Scientific Instruments

Service to Professional Associations

Areas of Research Interests/ Research Projects

Dr. Liu’s researching subject includes novel magnetic bearing, magnetic field analysis, rotor dynamics, auxiliary bearing and insulation of helium gas.

Novel magnetic bearing

Novel electromagnetic-permanent magnet hybrid bearing.

Magnetic field analysis

Electromagnetic bearing loss.

Rotor dynamics

Modal analysis of the complex interference fit rotor.

Auxiliary bearing

Life prediction and fault diagnosis of auxiliary bearing of magnetic bearing.

Insulation of helium gas

Breakdown characteristics of high temperature and high pressure helium gas.

Research Status

2015-present

A type of two-degree-of-freedom electromagnetic permanent magnet hybrid bearing structure was proposed. The three-degree-of-freedom bearing is being studied.

2011-present

The novel thermo-mechanical coupling failure mechanism of protective bearing was proposed. Life prediction and fault diagnosis of protective bearing are being studied.

2013-2021

The Paschen equation for high temperature and high pressure helium gas and its simplified empirical formula were proposed.

2013-2017

The influence of various factors such as length-diameter ratio on the mode of the interference fit rotor was proposed.

2012-2018

A novel design method for electromagnetic force was proposed.

Honors and Awards

2020, The third prize of the 16th Experimental Technology Achievement, Tsinghua University, Responsible

2018, The third prize of the 15th Experimental Technology Achievement, Tsinghua University, Responsible

2014, Ten major scientific and technological progress of China's colleges and Universities (High Temperature gas cooled reactor main helium fan engineering prototype development), Ministry of Education, ‌Participated

Selected Academic Achievement

LIU Xingnan, CHEN Guohui, WANG Mingqi, SHI Zhengang, MO Ni*. Analysis for Friction Heating Power of Non-lubricated Auxiliary Bearing of Electromagnetic Bearing during Rotor Drop[J]. Atomic Energy Science and Technology, 2024, 58(Suppl.): 131-140(in Chinese).

DENG Hang, SHI Zhengang, MO Ni, SUN Zhe, ZHAO Jingjing, LIU Xingnan*. Research on on-line degradation evaluation of electromagnetic bearing protection bearing[J]. Atomic Energy Science and Technology, 2022, 56(Suppl.): 200-210(in Chinese).

YOU Qi, LIU Xingnan, LUO Huan, MO Ni, SHI Zhengang*. Experiments and simulation of helium breakdown at high pressure and temperature in a non-uniform electric field[J]. Annals of Nuclear Energy, 2021 (151), 107952.

LIU Xingnan, SHI Zhengang, MO Ni, ZHAO Jingjing and YANG Guojun*. Calculation and experiment of electromagnetic force of the axial AMB used in HTR-PM main helium blower prototype and its dual material selection method[J]. Applied Computational Electromagnetics Society journal, 2019, Vol.34(4): 584-590.

LIU Xingnan, SHI Zhengang, YANG Guojun, ZHAO Jingjing. A novel type of homopolar radial electromagnetic bearing: CN 201710886271.5[P]. 2017-09-26.