Junlan Li (李君兰)

Contact

Ph.D, Associate Professor

School of Mechanical Engineering

Tianjin University

Address: Buiding 37, Peiyang Park Campus of Tianjin University, Jinnan District, Tianjin, 300354, China

E-mail: ellen.junlanli@gmail.com jlli@tju.edu.cn

Other profile: https://www.researchgate.net/profile/Junlan_Li

Brief information

I am a Associate Professor at the School of Mechanical Engineering, Tianjin University. My current research interests are focused on mechanical dynamics, especially dynamics of deployable structures, coupled thermal-structure dynamics, bionics and bionic robots.

Meanwhile, I was a academic visitor at the Department of engineering science, University of Oxford (from Sep, 2016 to Aug, 2017), where I was a member of Prof. Zhong You's Deployable Structure Group. I received the B.E., M.S. and Ph.D. degrees from Department of Mechanical Engineering, Tianjin University in 2005, 2007, and 2010, respectively. After that, I have worked as a Research Associate (Post-doc) in the Department of Precision Instruments and Mechanology (now is Department of Mechanical Engineering) at Tsinghua University from 2010 to 2012.

During these years, I have accomplished a couple of government and industry-based projects and authored or coauthored more than 30 refereed research papers in the field of mechanical engineering.

Research interests

Deployable structures: design and dynamics.
Coupled thermal-dynamic method and its application.
Bionic of insect, bionic robots.

Projects

On going projects:

Research on rigid-flexible coupling design theory and its key technologies and prototype in the application of multi-finger-dexterous hand , Jan. 2019- Dec. 2021.
Study on nonlinear dynamic characteristics of flexible deployable structures with clearance joints. May. 2019 - Apr. 2020.
Fundamental theory and rigid-flexible transformation principle of deployable braided mechanism for precise minimally invasive surgical instruments. Jan. 2016- Dec. 2019.

Finished Projects:

Research on coupled thermal-structure dynamics of spacecraft solar array in orbit . Jan.2014- Dec.2016.
Thermal vibration characteristic of Orbiting complex structure in the solar array. Jan.2014- Dec.2016.
Research on Dynamics of Space Manipulator Considering Clearance and Friction. Jan.2013-Dec.2016.
Prediction of dynamic performance of orbiting large flexible spacecraft appendages. Jan.2015- Dec.2016.
Research on dynamics of space manipulator considering clearance and friction effects. Jan.2013-Dec.2016.
Reliability design and of the solar array. Apr, 2009-Mar, 2011.
Fault mode analysis and performance prediction of the spacecraft solar array. Jan, 2009-Dec, 2011.
Performance evaluation and reliability design of the spacecraft solar array. Jun, 2009-Oct, 2011.
Design Theory and Prototype Construction of High - speed Precision IC Wire Bonding Machine. Apr, 2010- Apr.2013.
High-speed Precision Positioning System and Key Technology for IC Packaging. Jan, 2006-Dec, 2008.
High - speed Precision Positioning Technology for IC Packaging Industry. Apr, 2005- Apr.2007.
Research on Precision Positioning System for MEMS Machining. Jan, 2003-Dec, 2005.

Research

1. Origami structures

1) Dynamics of Origami-inspired deployable structures

2) Kirigami-inspired foldable models

We propose an approach inspired by kirigami to fold thick panels. By cutting open some creases to relax kinematic constraints, we show that a kinematically equivalent folding to that of zero-thickness sheet can be achieved. The approach can be applied to four-crease and six-crease kirigami patterns. In most cases, we can obtain one or both flat surfaces in the deployed configuration, which is beneficial for applications such as foldable solar panels. Our work provides researchers a new way to deal with the problem of folding thick panels, and the approach can be readily utilised to build new structures for engineering applications in the future.

2. Insect Flight and Bionic Robots

Flapping-wing air vehicle is a kind of aircraft that generates lift and thrust by imitating birds, insects and bats. Compared with rotor aircraft and fixed wing aircraft, flapping wing aircraft is advantaged in small size, high agility and high concealment. In our research, we design a flapping-wing mechanism that can imitate the movement of insect wings from the aspect of bionics, then, we analyze its aerodynamic characteristics and set up experimental research. Our research may provide new ideas and beneficial supplements for the development of new micro-flapping wing air vehicle.

3. Thermally induced vibration for Space deployable structures

Solar arrays, which are space deployable structures, are critical appendages that provide primary power sources for spacecrafts. We propose a numerical method to characterize the thermal response of a composite solar array subjected to space heat flux. The transient temperature and thermally induced vibration are investigated based on this method. The results could provide guidance for designers to optimize the structure utilized in minimizing the influence of the space thermal environment.

4. Experimental Facilities of Deployable Structures

We establish facilities for evaluating the deploy movements and dynamic properties of large deployable structures.

A suspension experimental device that can achieve one-dimensional deployment for planar deployable mechanisms.

A experiment facility that can achieve a two-dimensional deployment for spatial deployable mechanisms.

Other Infos

Research experience:

Aug 2017– present Associate Professor
Tianjin University · Department of Mechanical Engineering

Jan 2013– Jul 2017 Lecturer
Tianjin University · Department of Mechanical Engineering

Sep 2016–Aug 2017 Academic Visitor
University of Oxford · Department of Engineering Science · Civil Engineering Group

Sep 2010–Jan 2013 Research Assistant
Tsinghua University · Department of Precision Instruments and Mechanology (now is Department of Mechanical Engineering)

Education:

Sep 2005–Mar 2010 Tianjin University (Tianjin, China)
Mechanical Engineering · Master and Ph.D of Engineering

Sep 2001–Jul 2005 Tianjin University (Tianjin, China)
Mechanical Engineering · Bachelor of Engineering

Publications

Journal Papers

[1] Menglei Cong, Junlan Li*, Design and analysis of three-dimensional bio-inspired flapping-wing mechanism based on spatial RURS linkage, Journal of Aerospace Power, 2018, in press. (in Chinese)

[2] Xiaodong Guo, Junlan Li, Weihua Chen, Liang Yu, Yulan Zhu, Shaoze Yan, Design and simulation of morphing nose cone for umbrella guide-rod mechanism,Optics and Precision Engineering, 2018, 26(2): 336-343. (in Chinese)

[3] Junlan Li*, Hongzhou Huang, Shaoze Yan, Yunqiang Yang, Kinematic accuracy and dynamic performance of a simple planar space deployable mechanism with joint clearance considering parameter uncertainty, Acta Astronontica. 2017, 136: 34–45 .

[4] Yan Chen, Weilin Lv, Junlan Li, Zhong You*, An Extended Family of Rigidly Foldable Origami Tubes, Journal of Mechanisms and Robotics. 2017, 9(2): 021002-021002-7.

[5] Wu Jianing, Yan Shaoze*, Li Junlan, Gu Yongxia. Mechanism reliability of bistable compliant mechanisms considering degradation and uncertainties: modelling and evaluation method, Applied Mathematical Modelling, 2016, 40(23): 10377–10388.

[6] Delin Cui, Shaoze Yan*, Junlan Li, Zhaoye Qin, Xiaosong Guo, Dynamic analysis of satellite separation considering the flexibility of interface rings, Proceedings of the Institution of Mechanical Engineers, Part G, Journal of Aerospace Engineering, 2015, 229(10): 1886-1902.

[7] Jieliang Zhao, Jianing Wu, Shaoze Yan, Junlan Li, Yongxia Gu. Dynamic modelling and motion precision analysis of spacecraft manipulator with harmonic drive considering the alternate thermal field in orbit. Proceedings of the Institution of Mechanical Engineers, Part G, Journal of Aerospace Engineering, 2015, 29: 135-148.

[8] Delin Cui, Jieliang Zhao, Shaoze Yan*, Xiaosong Guo, Junlan Li, Analysis of parameter sensitivity on dynamics of satellite separation. Acta Astronautica, 2015, 114: 22-33.

[9] Junlan Li*, Shaoze Yan. Thermal induced vibration of composite solar array with honeycomb panels in low earth orbit, Applied thermal engineering. 2014, 71(1), 419-432.

[10] Junlan Li*, Shaoze Yan, Xuefeng Tan. Dynamic-Envelope Analysis of Clamp-Band Joint Considering Pyroshock of Satellite Separation, Journal of Spacecraft and Rockets. 2014, 51(5): 1390-1400.

[11] Jianing Wu, Junlan Li, Shaoze Yan*. Design of Deployable Bistable Structures for Morphing Skin and Its Structural Optimization, Engineering Optimization. 2014, 46(6): 745–762.

[12] Fujun Wang, Junlan Li, Shiwei Liu, Xingyu Zhao, Dawei Zhang, and Yanling Tian. An Improved Adaptive Genetic Algorithm for Image Segmentation and Vision Alignment Used in Microelectronic Bonding. IEEE/ASME Transactions on Mechatronics, 2014, 19(3), 916-923.

[13] Junlan Li, Shaoze Yan*, Feng Guo, Pengfei Guo, Effects of damping, friction, gravity, and flexibility on the dynamic performance of a deployable mechanism with clearance, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 2013, 227(8), 1791-1803.

[14] Junlan Li, Jianing Wu, Shaoze Yan*, Conceptual design of deployment structure of morphing nose cone, Advances in Mechanical Engineering. 2013, 590957.

[15] Junlan Li, Shaoze Yan*, Renyu Cai. Thermal analysis of composite solar array subjected to space heat flux, Aerospace science and technology. 2013, 27(1): 84-94.

[16] Junlan Li, Shaoze Yan, Xiaoyan Wu, Yunqiang Yang, Effects of gravity potential on frequency of deployable panel structures, Journal of Tsinghua University，2012,54(1): 25-30.

[17] Junlan Li，Shiwei Liu，Dawei Zhang*，High-precision vision localization method for IC wire bonding，Journal of Tianjin University Science and Technology, 2012, 45(5) : 405-410. (in Chinese)

[18] Yanling Tian, Zhiyong Guo, Fujun Wang, Junlan Li, Dawei Zhang. Design and Experimental Investigation of a 2-DOF Planar Micro-Positioning Table, International Journal of Intelligent Mechatronics and Robotics, 2012, 3(2): 39-54.

[19] Hongchang Huang, Yunqiang Yang*, Junlan Li, Shaoze Yan. Development of Thermal-structural Analysis for Spacecraft Solar Array, Electro-Mechanical Engineering, 2012, 28(4): 1-7. (in Chinese)

[20] Junlan Li*, Dawei Zhang, Camera calibration with a near-parallel imaging system based on geometric moments, Optical Engineering, 2011, 50(2), 023601.

[21] Junlan Li*, Dawei Zhang, Yizhong Wang, Xingyu Zhao, Fanzhi Kong, Micro-vision positioning systems for IC packaging. Optics and Precision Engineering, 2010, 4: 965-972. (in Chinese)

[22] Junlan Li*, Yizhong Wang, Dawei Zhang, Xingyu Zhao. Design and Simulation of the Positioning System Using Computer Vision for IC Packaging. Journal of Shanghai Jiaotong University (Science), 2008, 13, SUPPL.: 91-95.

Conference Papers

[1] Cheng Wang, Junlan Li, Zhong You, A Kirigami-inspired Foldable Model for Thick Panels, the proceedings from the 7th international meeting on origami in science, mathematics and education (7OSME), 5-7 September 2018, UK. (in Origami^7, RJ. Lang, M Bolitho and You Z, 2018.)

[2] Junlan Li*, Hongzhou Huang, Yunqiang Yang, Modeling and Simulation of Joint Clearance Effects on Space Manipulator, 2015 IEEE International Conference on Mechatronics and Automation (ICMA),. 2015: 1852-1857.

[3] Hongzhou Huang, Junlan Li*, Yunqiang Yang, Shaoze Yan, Dynamics Modeling and Simulation of Deployable Mechanism with Double Clearance, Key Engineering materials, 2016, 685: 452-457.

[4] Junlan Li, Shaoze Yan*, Xuefeng Tan. Modeling and simulation of clamp band dynamic envelope in a LV/SC separation system, 2nd International Conference on Functional Manufacturing and Mechanical Dynamics, 2012.01, 141: 359-363.

[5] Shiwei Liu, Junlan Li*, Xingyu Zhao, Dawei Zhang, Achievement of Dynamic-Link Library for Image Segmentation Based on LabVIEW, 14th International Manufacturing Conference in China(IMCC2011), 2011.10, 697-698: 805-808.

[6] Shiwei Liu, Junlan Li*, Xingyu Zhao, Dawei Zhang, A Vision Alignment Method Based on Improved Genetic Algorithm for IC Packaging, 2nd International Conference on Manufacturing Science and Engineering(ICMSE), 2011.04, 189-193: 4177-4181.

[7] Junlan Li, Yizhong Wang*, Xingyu Zhao, Fanzhi Kong, Dawei Zhang. Calibration of Computer Vision Positioning System for MEMS Wire Bonder. Photonics Asia 2007, Beijing, China: 68360F.

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