1.  机械系统动力学；2.非线性系统辨识；3.非线性振动控制。

[1]Qinghua Liu, Junyi Cao*, Ying Zhang, Zhenyang Zhao, Gaetan Kerschen, Xingjian Jing. Interpretable sparse identification of a bistable nonlinear energy sink[J]. Mechanical Systems and Signal Processing. 2023, 193: 110254.

[2]Qinghua Liu, Zehao Hou, Ying Zhang, Xingjian Jing, Gaetan Kerschen, Junyi Cao*. Nonlinear restoring force identification of strongly nonlinear structures by displacement measurement[J]. ASME Journal of Vibration and Acoustics. 2022, 144(3): 031002.

[3]Qinghua Liu, Junyi Cao*, Fangyuan Hu, Dan Li, Xingjian Jing, Zehao Hou. Parameter identification of nonlinear bistable piezoelectric structures by two-stage subspace method[J]. Nonlinear Dynamics. 2021, 105: 2157-2172.

[4]Qinghua Liu, Ying Zhang, Zehao Hou, Yuting Qiao, Junyi Cao*, Yaguo Lei. Optimal Hilbert transform parameter identification of bistable structures[J]. Nonlinear Dynamics. 2023, 111: 5449–5468.

[5]Qinghua Liu, Zhenyang Zhao, Ying Zhang, Jie Wang, Junyi Cao*. Physics-informed sparse identification of bistable structures[J]. Journal of Physics D: Applied Physics. 2023, 56: 044005.

[6]Qinghua Liu, Junyi Cao*. Identification of asymmetric Bouc-Wen hysteresis under intense noise by only measuring acceleration[J]. ASME Journal of Computational and Nonlinear Dynamics. 2023, 18(8): 081009.

[7]曹军义*,刘清华, 洪军. 螺栓连接微观摩擦到宏观动力学研究综述[J].中国机械工程, 2021, 32(11):1261-1273.

1.理论力学；2.非线性振动

1.2023年中国振动工程学会科学技术二等奖（排名第五）；

2.2023年第三十届全国振动与噪声高技术应用会议优秀论文奖；

3.2023年International Conference on Applied Nonlinear Dynamics, Vibration, and Control最佳论文奖

4.2022年ASME Journal of Vibration and Acoustics期刊年度最佳论文奖；

5.2021年International Conference on Nonlinear Dynamics and Vibration Control最佳论文奖。