Title:    Professor and Ph.D 
             ASME memeber

Phone: +86(0) 29-82667938


E-Mail: caojy@mail.xjtu.edu.cn

Affiliation: School of Mechanical Engineering.                     
                  State Key Lab for Manufacturing System Engineering.

Research Direction: 1.Mechanic/Electrical System Dynamics and Control.
                               2.Fundamentals of Fractional Calculus Application.
                               3. Vibration energy harvesting.

Publications:    

[1]  Shengxi Zhou, Jared D. Hobeck, Junyi Cao*, Daniel J. Inman. Analytical and experimental investigation of flexible longitudinal zigzag structures for enhanced energy harvesting. Smart Materials and Structures, 2017, 26(3):035008

[2]  Wei Wang, Junyi Cao*, Chris R. Bowen, Shengxi Zhou, Jing Lin. Optimum resistance analysis and experimental verification of nonlinear piezoelectric energy harvesting from human motions. Energy, 2017, 118:221-230.

[3]  Wei Wang, Junyi Cao*, Nan Zhang, Jing Lin, Wei-Hsin Liao*. Magnetic-spring based energy harvesting from human motions: Design, modeling and experiments. Energy Conversion and Management, 2017, 132:189-197.

[4]  Mingxiang Ling, Junyi Cao*, Minghua Zeng, Jing Lin. Modular kinematics and statics modeling for precision positioning stage. Mechanism and Machine Theory, 2017,107:274-282.

[5]  Junyi Cao*, Mingxiang Ling, Daniel J Inman, Jing Lin. Generalized constitutive equations for piezo-actuated compliant mechanism. Smart Materials and Structures, 2016, 25:095005.

[6]  Mingxiang Ling, Junyi Cao*, Minghua Zeng, Jing Lin, Daniel J Inman. Enhanced mathematical modeling of the displacement amplification ratio for piezoelectric compliant mechanisms. Smart Materials and Structures, 2016, 25:075022.

[7]  Mingxiang Ling, Junyi Cao*, Minghua Zeng, Jing Lin. Theoretical modeling of attenuated displacement amplification for multistage compliant mechanism and its application. Sensors and Actuators A: Physical, 2016, 249:15-22.

[8]  Shengxi Zhou, Junyi Cao*, Daniel J. Inman, Jing Lin, Dan Li. Harmonic balance analysis of nonlinear tristable energy harvesters for performance enhancement[J]. Journal of Sound and Vibration, 2016, 373:223-235

[9]  Junyi Cao, Wei Wang, Shengxi Zhou, Daniel J. Inman, Jing Lin. Nonlinear time-varying potential bistable energy harvesting from human motion[J]. Applied Physics Letters, 2015,107: 14390

[10]              Junyi Cao, Shengxi Zhou, Wei Wang, Jing Lin. Influence of potential well depth on nonlinear tristable energy harvesting[J]. Applied Physics Letters, 2015, 106(17): 173903

[11]              Junyi Cao, Arkadiusz Syta, Grzegorz Litak*, Shengxi Zhou, Daniel J. Inman, Yangquan Chen. Regular and chaotic vibration in a piezoelectric energy harvester with fractional damping[J]. European Physical Journal Plus, 2015, 130:103

[12]              Shengxi Zhou, Junyi Cao*, Daniel J. Inman, Shengsheng Liu, Wei Wang, Jing Lin. Impact-induced high-energy orbits of nonlinear energy harvesters[J]. Applied Physics Letters, 2015, 106(9):093901

[13]              Shengxi Zhou, Junyi Cao*, Wei Wang, Shengsheng Liu, Jing Lin. Modeling and experimental verification of doubly nonlinear magnet-coupled piezoelectric energy harvesting from ambient vibration[J]. Smart Materials and Structures, 2015, 24, 055008

[14]              Junyi Cao*, Shengxi Zhou, Daniel J. Inman, Jing Lin, Nonlinear Dynamic Characteristics of Variable Inclination Magnetically Coupled Piezoelectric Energy Harvesters[J], ASME Journal of Vibration and Acoustics. 2015, 137: 021015.

[15]              Junyi Cao*, Shengxi Zhou, DJ. Inman, Yangquan Chen. Chaos in the fractionally damped broadband piezoelectric energy generator[J]. Nonlinear Dynamics, 2015, 88(4):1705-1719.

[16]              Zhongyue Zou, Junyi Cao*, Binggang Cao, Wen Chen. Evaluation strategy of regenerative braking energy for supercapacitor vehicle[J], ISA Transtions, 2015, 55: 234-240.

[17]              Shengxi Zhou, Junyi Cao*, Daniel J. Inman, Jing Lin, Shengsheng Liu, Zezhou Wang. Broadband Tristable Energy Harvester: Modeling and Experiment Verification[J]. Applied Energy, 2014, 133:33-39.

[18]              Shengxi Zhou, Junyi Cao*, Jing Lin, Zezhou Wang. Exploitation of a tristable nonlinear oscillator for improving broadband vibration energy harvesting[J]. European physical Journal -Applied Physics, 2014, 67(3):30902.

[19]              Shengxi Zhou, Junyi Cao*, Alper Erturk and Jing Lin. Enhanced broadband piezoelectric energy harvesting using rotatable magnets[J]. Applied Physics Letters, 2013, 102(17): 173901-4

[20]              Shengxi Zhou, Junyi Cao*,Yangquan Chen. Genetic Algorithm-Based Identification of Fractional-Order Systems[J]. Entropy, 2013, 15(5):1624-1635

[21]              Junyi Cao*, Shiming Xue, Jing Lin, Yangquan Chen. Nonlinear Dynamic Analysis of a Cracked Rotor-Bearing System With Fractional Order Damping[J]. ASME Journal of Computational and Nonlinear Dynamics, 2013, 8: 031008.

[22]              Yue Qiao, Junyi Cao, Chengbin Ma.  Polynomial Method Based Design of Low Order Controllers for Two-Mass System, IEEE Transactions on Industrial Electronics, 2013, 60(3):969-978.

[23]              Junyi Cao*, Chengbin Ma, Zhuangde Jiang, Shuguang Liu. Nonlinear dynamic analysis of fractional order rub-impact rotor system, Communications in Nonlinear Science and Numerical Simulation, 2011, 16(3): 1443-1463.

[24]              Junyi Cao*, Binggang Cao. Fractional-Order Control of Pneumatic Position Servosystems, Mathematical Problems in Engineering, vol. 2011, Article ID 287565, 14 pages, 2011. DOI: 10.1155/2011/287565

[25]              Junyi Cao, Chengbin Ma, Hang Xie, Zhuangde Jiang. Nonlinear dynamics of Duffing system with fractional order damping, ASME Journal of Computational and Nonlinear Dynamics, 2010,Volume 5, Issue 4, 041012-041018.

[26]              Hao Tang, Yuhe Liao, Junyi Cao, Hanng Xie. Fault diagnosis approach based on Volterra models, Mechanical Systems and Signal Processing. Volume 24, Issue 4, May 2010, Pages 1099-1113.

[27]              Jianping Wen, Binggang Cao, Junyi Cao*. Robust ESO Two-Degree-of-Freedom Control Design for Permanent Magnet Synchronous Motor, Mathematical Problems in Engineering, vol. 2010, Article ID 405251, 10 pages, 2010. doi:10.1155/2010/405251

[28]              Junyi Cao, Binggang Cao. Design of fractional order controllers based on particle swarm optimization. International Journal of Control, Automation and System, 2006, 4(6): 775-781.

[29]              Wei Wang, Shengsheng Liu, Junyi Cao*, Shengxi Zhou, Jing Lin. Two degrees of freedom piezoelectric energy harvester. Proc.SPIE9799, Active and Passive Smart Structures and Integrated Systems 2016, 9799Q (April 15, 2016):doi:10.1117/12.2219661.

[30]              Wei Wang, Junyi Cao*, Shengxi Zhou, Jing Lin. Bistable energy harvesting from human motion. Proceedings of the ASME 2015 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference Aug. 2-5, 2015, Boston, Massachusetts, USA

[31]              Dan Li, Junyi Cao*, Shengxi Zhou, Yangquan Chen. Fractional order model of broadband piezoelectric energy harvesters. Proceedings of the ASME 2015 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference Aug. 2-5, 2015, Boston, Massachusetts,USA

[32]              Junyi Cao, Shengxi Zhou, Daniel J. Inman, Nonlinear characteristics for rotatable magnetally coupling piezoelectric energy harvesters. In Proceeding of the ASME 2014 International Design Engineering Technical Conferences, Aug.17-20, Buffalo, USA

[33]              Junyi Cao, Shengxi Zhou, Xiaolong Ren. Piezoelectric Cantilevers Optimization for Vibration Energy Harvesting. Proceeding of 3rd International Conference on Smart Material and Nanotechnology, Dec. 2011, Shenzhen, China.

[34]              Shiming Xue, Junyi Cao, Yangquan Chen. Nonlinear dynamic analysis of a cracked rotor-bearing system with fractional order damping, Proceedings of the ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference (IDETC/CIE 2011), August 28-31, 2011, Washington, DC, USA.

[35]              Zhongyue Zou, Junyi Cao, Chengbin Ma, Huarong Zhuang. An measurement system for electric vehicle powered by supercapacitors, Proceedings of the ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference (IDETC/CIE 2011), August 28-31, 2011, Washington, DC, USA.

[36]              Ocran T A, Junyi Cao, Binggang Cao. Artificial neural network maximum power point tracker for solar electric vehicle. Tsinghua Science and Technology, 2005, 10(2): 204-210.

[37]              王伟,曹军义*,林京,周生喜,蔡云龙. 一种非线性双稳态人体运动能量俘获技术,西安交通大学学报，2015,49(8):58-63

[38]      周生喜，曹军义，Alper Erturk. 压电磁耦合振动能量俘获系统的非线性模型研究. 西安交通大学学报，2014,48（1）：106-111

[39]       徐俊,曹军义,曹秉刚,李友年. 空空导弹分数阶三回路自动驾驶仪的分析与参数优化[J].西安交通大学学报, 2011,45(12):33-38.

[40]      曹军义, 任晓龙, 周生喜,曹秉刚. 基于并联电感同步开关控制的振动能量回收方法研究[J]. 振动与冲击, 2012,31(17):56-60.

[41]              薛士明, 曹军义, 林京, 陈阳泉. 分数阶阻尼裂纹转子的非线性动力学特性分析, 西安交通大学学报,2012,46(1):76-80.

[42]              曹军义,谢航,蒋庄德. 分数阶阻尼Duffing系统的非线性动力学特性，西安交通大学学报，2009，43(3)：50-54.

[43]              曹军义, 曹秉刚. 分数阶控制器的数字实现及其特性研究. 控制理论与应用, 2006, 23(5):992-997.

[44]              曹军义, 曹秉刚. 分数阶控制器离散方法的评估策略研究. 西安交通大学学报, 2007,41(7):842-846.