Prof. Dehua Yang Profile

Prof. Dehua Yang

Mechanical engineer at Nanjing Institute of Astronomical Optics and Tech

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Author

Publications (34)

Proceedings Article | 6 July 2018 Paper

A pneumatic axial support prototype of the primary mirror of a 2m solar telescope

Dehua Yang, Changcheng Wu, Fei Fei, Zhenyu Jin, Zhong Liu

Proceedings Volume 10700, 107003U (2018) https://doi.org/10.1117/12.2313411

KEYWORDS: Actuators, Mirrors, Prototyping, 3D modeling, Solar telescopes, Sensors

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Proceedings Article | 18 August 2016 Paper

Support optimization of the ring primary mirror of a 2m solar telescope

Dehua Yang, Zhenyu Jin, Zhong Liu

Proceedings Volume 9906, 990651 (2016) https://doi.org/10.1117/12.2232507

KEYWORDS: Error analysis, Optimization (mathematics), Zerodur, Monochromatic aberrations, Telescopes, Error analysis, Mirrors, Solar telescopes, Astronomy, Observatories, Astronomical engineering

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Proceedings Article | 22 July 2014 Paper

Upgradation progress of 13.7m millimeter radio telescope reflector surface maintenance test

Yong Zhang, Dehua Yang, Guohua Zhou, You Wang, Aihua Li, Yeping Li, Anfang Liu, Yizhong Zeng, Guoping Li, Qimeng Wang

Proceedings Volume 9145, 914540 (2014) https://doi.org/10.1117/12.2056082

KEYWORDS: Reflectors, Radio telescopes, Laser metrology, Telescopes, Metrology, Sensors, Antennas, Astronomical imaging, Laser systems engineering, Actuators

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Proceedings Article | 22 July 2014 Paper

Active control of the Chinese Giant Solar Telescope

Yichun Dai, Dehua Yang, Zhenyu Jin, Zhong Liu, Wei Qin

Proceedings Volume 9145, 914550 (2014) https://doi.org/10.1117/12.2055621

KEYWORDS: Mirrors, Telescopes, Solar telescopes, Sensors, Active optics, Control systems, Image segmentation, Finite element methods, Observatories, Segmented mirrors

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Proceedings Article | 27 September 2012 Paper

Progress of the active reflector antenna using laser angle metrology system

Yong Zhang, Jie Zhang, Dehua Yang, Guohua Zhou, Aihua Li, Guoping Li

Proceedings Volume 8444, 84444Y (2012) https://doi.org/10.1117/12.923642

KEYWORDS: Reflectors, Radio telescopes, Antennas, Laser metrology, Laser systems engineering, Metrology, Precision measurement, Telescopes, Astronomical imaging, Sensors

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Proceedings Article | 25 September 2012 Paper

Dynamic analysis of the active control system for the CGST

Yichun Dai, Dehua Yang, Lorenzo Zago, Zhong Liu

Proceedings Volume 8449, 84491A (2012) https://doi.org/10.1117/12.925930

KEYWORDS: Mirrors, Telescopes, Control systems, Solar telescopes, Control systems design, Actuators, Segmented mirrors, Sensing systems, Device simulation, Optical instrument design

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Proceedings Article | 17 September 2012 Paper

Conceptual design of a 5-m terahertz telescope at Dome A

Dehua Yang, Hai Wang, Yong Zhang, Yi Chen, Guohua Zhou, Jingquan Cheng, Guoping Li

Proceedings Volume 8444, 84445B (2012) https://doi.org/10.1117/12.925778

KEYWORDS: Telescopes, Control systems, Optical instrument design, Receivers, Reflectors, Domes, Antennas, Space telescopes, Electronics, Computer programming

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Proceedings Article | 17 September 2012 Paper

Development of a compact precision linear actuator for the active surface upgrade of the Delingha 13.7-m radio telescope

Guohua Zhou, Aihua Li, Dehua Yang, Zhenchao Zhang, Guoping Li

Proceedings Volume 8444, 84444D (2012) https://doi.org/10.1117/12.925825

KEYWORDS: Actuators, Telescopes, Radio telescopes, Optical instrument design, Space telescopes, Astronomical imaging, Electronics, Prototyping, Manufacturing, Astronomy

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Proceedings Article | 17 September 2012 Paper

An active surface upgrade for the Delingha 13.7-m Radio Telescope

Dehua Yang, Yong Zhang, Guohua Zhou, Aihua Li, Kunxin Chen, Zhenchao Zhang, Guoping Li, Yingxi Zuo, Ye Xu

Proceedings Volume 8444, 84444B (2012) https://doi.org/10.1117/12.925789

KEYWORDS: Actuators, Telescopes, Radio telescopes, Space telescopes, Laser metrology, Metrology, Laser systems engineering, Device simulation, Optical instrument design, Electromagnetic coupling

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Proceedings Article | 13 September 2012 Paper

Metrology system for the calibration of multi-dof precision mechanisms

Lorenzo Zago, Mirsad Sarajlic, Fabien Chevalley, Dehua Yang

Proceedings Volume 8450, 845039 (2012) https://doi.org/10.1117/12.925710

KEYWORDS: Cameras, Metrology, Mirrors, Calibration, Imaging systems, Telescopes, Autocollimators, Motion measurement, Precision calibration, Astronomical telescopes

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Proceedings Article | 13 September 2012 Paper

Design and test of a novel cost-effective piezo driven actuator with a two-stage flexure amplifier for chopping mirrors

Qingguo Wu, Dehua Yang, Aihua Li, Guohua Zhou, Bintang Yang

Proceedings Volume 8450, 84505G (2012) https://doi.org/10.1117/12.925834

KEYWORDS: Amplifiers, Actuators, Finite element methods, Mirrors, Infrared telescopes, Optical amplifiers, Astronomical telescopes, Prototyping, Astronomical imaging, Infrared astronomy

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Proceedings Article | 13 September 2012 Paper

Control system for 6 degree of freedom electric platform of sub-mirror in the giant telescope

Aihua Li, Hui Wang, You Wang, Dehua Yang, Zhenchao Zhang

Proceedings Volume 8450, 84505E (2012) https://doi.org/10.1117/12.925272

KEYWORDS: Control systems, Telescopes, Space telescopes, Wireless communications, Control systems design, Prototyping, Telecommunications, Astronomical telescopes, Photogrammetry, Astronomy

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Proceedings Article | 13 September 2012 Paper

Study on functional integration of the SKA and the solar thermal power system

Zhi-Ming Dong, Dehua Yang, Yong Zhang, Xuebin Zhou

Proceedings Volume 8450, 84505Q (2012) https://doi.org/10.1117/12.925360

KEYWORDS: Solar thermal energy, Reflectors, Control systems, Mirrors, Sun, Radio telescopes, Solar energy, Reflectivity, Antennas, Radio astronomy

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Proceedings Article | 10 November 2011 Paper

Integrated modeling analysis of a novel hexapod and its application in active surface

Dehua Yang, Lorenzo Zago, Hui Li, Gregory Lambert, Guohua Zhou, Guoping Li

Proceedings Volume 8336, 83360L (2011) https://doi.org/10.1117/12.915936

KEYWORDS: Actuators, Kinematics, Finite element methods, Error analysis, Integrated modeling, 3D modeling, Prototyping, Systems modeling, MATLAB, Radio telescopes

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Proceedings Article | 7 August 2010 Paper

Design and analysis of a lightweight prestressed antenna back-up structure

Zengxiang Ma, Dehua Yang, Jingquan Cheng

Proceedings Volume 7733, 77333Q (2010) https://doi.org/10.1117/12.856229

KEYWORDS: Antennas, Structural design, Finite element methods, Reflectors, Structural analysis, Radio telescopes, Metals, Sun, Beam shaping, Astronomical imaging

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Proceedings Article | 7 August 2010 Paper

The finite element modeling and thermal analysis of the special focal plane of LAMOST

Heng Zuo, Dehua Yang, Guoping Li

Proceedings Volume 7733, 77335I (2010) https://doi.org/10.1117/12.856241

KEYWORDS: Finite element methods, Telescopes, Spherical lenses, Optical spheres, Thermal analysis, Astronomical imaging, Temperature metrology, Solid modeling, Reflector telescopes, Statistical modeling

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Proceedings Article | 6 August 2010 Paper

A new efficient laser angle metrology system for maintaining the Large Radio Telescope active reflecting antenna

Yong Zhang, Dehua Yang, Yeping Li, Guohua Zhou, Aihua Li, Guoping Li, Zhenchao Zhang

Proceedings Volume 7733, 77333M (2010) https://doi.org/10.1117/12.856747

KEYWORDS: Antennas, Radio telescopes, Laser metrology, Laser systems engineering, Metrology, Prototyping, Sensors, Telescopes, Mirrors, Actuators

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Proceedings Article | 5 August 2010 Paper

A scalable, cost-effective radio telescope drive and axis system

Silversun Sturgis, Jingquan Cheng, Xun Zhang, Dehua Yang

Proceedings Volume 7733, 77333K (2010) https://doi.org/10.1117/12.855910

KEYWORDS: Antennas, Telescopes, Radio telescopes, Manufacturing, Directed self assembly, Commercial off the shelf technology, Control systems, Computer programming, Radio astronomy, Synthetic apertures

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Proceedings Article | 23 July 2010 Paper

An innovative low-cost antenna dish built with commercial off-the-shelf (COTS) components

Jingquan Cheng, Jim Ruff, Silver Sturgis, Dehua Yang

Proceedings Volume 7739, 773930 (2010) https://doi.org/10.1117/12.854888

KEYWORDS: Antennas, Commercial off the shelf technology, Manufacturing, Telescopes, Metals, Tolerancing, Finite element methods, Thermal modeling, Synthetic apertures, Reflectors

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Proceedings Article | 23 July 2010 Paper

Carbon fiber reinforced composites: their structural and thermal properties

Jingquan Cheng, Dehua Yang

Proceedings Volume 7739, 77392G (2010) https://doi.org/10.1117/12.855877

KEYWORDS: Carbon, Composites, Polymers, Structured optical fibers, Aluminum, Foam, Astronomical telescopes, Chemical species, Structural design, Manufacturing

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Proceedings Article | 22 July 2010 Paper

Study on a novel panel support concept for radio telescopes with active surface

Dehua Yang, Guohua Zhou, Daniel Okoh, Guoping Li, Jingquan Cheng

Proceedings Volume 7739, 77391G (2010) https://doi.org/10.1117/12.856989

KEYWORDS: Error analysis, Actuators, Radio telescopes, Telescopes, Reflectors, Prototyping, Active optics, Spherical lenses, Mirrors, Image segmentation

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Proceedings Article | 10 July 2008 Paper

A 30-m submillimeter telescope with active reflector

Xiangqun Cui, Ding-qiang Su, Ya-nan Wang, Dehua Yang, Guoping Li

Proceedings Volume 7012, 701228 (2008) https://doi.org/10.1117/12.790520

KEYWORDS: Telescopes, Mirrors, Reflectors, Spherical lenses, Reflector telescopes, Optical telescopes, Sensors, Astronomy, Calibration, Optical instrument design

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Proceedings Article | 10 July 2008 Paper

Design, manufacture, measurement, and installation of the gross mirror cell of the LAMOST Schmidt plate

Dehua Yang, Kunxin Chen, Yongjun Liang, Shuqing Wang, Guohua Zhou

Proceedings Volume 7012, 70124M (2008) https://doi.org/10.1117/12.788969

KEYWORDS: Mirrors, Manufacturing, Design for manufacturability, Structural design, 3D metrology, Telescopes, Control systems, Computer aided design, Finite element methods, Interfaces

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Proceedings Article | 9 July 2008 Paper

Integrated thermal disturbance analysis of optical system of astronomical telescope

Dehua Yang, Zibo Jiang, Xinnan Li

Proceedings Volume 7017, 70171N (2008) https://doi.org/10.1117/12.788931

KEYWORDS: Telescopes, Zemax, Thermal modeling, Zernike polynomials, Mirrors, Finite element methods, Image quality, Space telescopes, Optical components, Astronomical telescopes

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During operation, astronomical telescope will undergo thermal disturbance, especially more serious in solar telescope, which may cause degradation of image quality. As drives careful thermal load investigation and measure applied to assess its effect on final image quality during design phase. Integrated modeling analysis is boosting the process to find comprehensive optimum design scheme by software simulation. In this paper, we focus on the Finite Element Analysis (FEA) software-ANSYS-for thermal disturbance analysis and the optical design software-ZEMAX-for optical system design. The integrated model based on ANSYS and ZEMAX is briefed in the first from an overview of point. Afterwards, we discuss the establishment of thermal model. Complete power series polynomial with spatial coordinates is introduced to present temperature field analytically. We also borrow linear interpolation technique derived from shape function in finite element theory to interface the thermal model and structural model and further to apply the temperatures onto structural model nodes. Thereby, the thermal loads are transferred with as high fidelity as possible. Data interface and communication between the two softwares are discussed mainly on mirror surfaces and hence on the optical figure representation and transformation. We compare and comment the two different methods, Zernike polynomials and power series expansion, for representing and transforming deformed optical surface to ZEMAX. Additionally, these methods applied to surface with non-circular aperture are discussed. At the end, an optical telescope with parabolic primary mirror of 900 mm in diameter is analyzed to illustrate the above discussion. Finite Element Model with most interested parts of the telescope is generated in ANSYS with necessary structural simplification and equivalence. Thermal analysis is performed and the resulted positions and figures of the optics are to be retrieved and transferred to ZEMAX, and thus final image quality is evaluated with thermal disturbance.

Proceedings Article | 1 November 2007 Paper

Application study on giant-magnetostrictive actuator for driving segmented mirrors of very large astronomical telescope

Bintang Yang, Dehua Yang, Guang Meng, Kunxin Chen, Yongjun Qi, Haiting Zhou, Peiyong Hou

Proceedings Volume 6423, 64230Z (2007) https://doi.org/10.1117/12.779371

KEYWORDS: Actuators, Mirrors, Astronomical telescopes, Adaptive optics, Magnetism, Active optics, Prototyping, Segmented mirrors, Telescopes, Sensors

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Proceedings Article | 6 July 2006 Paper

Support system design of the sub-mirror cell of the LAMOST Schmidt plate

Dehua Yang, Fanghua Jiang

Proceedings Volume 6273, 62731H (2006) https://doi.org/10.1117/12.671063

KEYWORDS: Mirrors, Actuators, Prototyping, Active optics, Sensors, Segmented mirrors, Safety, Astronomical imaging, Space telescopes, Telescopes

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Proceedings Article | 31 August 2005 Paper

Measurement of the actuation transmitting mechanism of the segment prototype of the LAMOST telescope

Dehua Yang, Yongjun Qi

Proceedings Volume 5877, 58770V (2005) https://doi.org/10.1117/12.612478

KEYWORDS: Sensors, Actuators, Prototyping, Environmental sensing, Active optics, Data corrections, Telescopes, Optical resolution, Environmental monitoring, Mirrors

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Proceedings Article | 31 August 2005 Paper

Design evolution and evaluation of the segmented reflecting Schmidt mirror cell of the LAMOST telescope

Dehua Yang, Kunxin Chen, Yongjun Liang, Xiangqun Cui

Proceedings Volume 5877, 58770W (2005) https://doi.org/10.1117/12.612989

KEYWORDS: Mirrors, Segmented mirrors, Space telescopes, Telescopes, Finite element methods, Actuators, Reflector telescopes, Mirror structures, Spherical lenses, Structural design

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Proceedings Article | 29 September 2004 Paper

Preliminary structure design and analysis of the Chinese Future Giant Telescope

Guoping Li, Dehua Yang

Proceedings Volume 5495, (2004) https://doi.org/10.1117/12.551172

KEYWORDS: Mirrors, Telescopes, Structural design, Finite element methods, Computer aided design, Optical instrument design, Modal analysis, Mechanical engineering, Radio telescopes, Solid modeling

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Proceedings Article | 29 September 2004 Paper

Application of photogrammetric technique to astronomical telescope measurement and control

Dehua Yang, Jingquan Cheng

Proceedings Volume 5495, (2004) https://doi.org/10.1117/12.551643

KEYWORDS: Photogrammetry, Cameras, Photography, Antennas, CCD cameras, Astronomical telescopes, Imaging systems, Reflectors, Telescopes, Image processing

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Proceedings Article | 17 February 2003 Paper

Design of a 50-m pulsar radio telescope

Dehua Yang, Shuangshuo Xue, Daxing Wang, Wenzhi Lu, Jingquan Cheng

Proceedings Volume 4855, (2003) https://doi.org/10.1117/12.459174

KEYWORDS: Telescopes, Reflectors, Optical instrument design, Radio telescopes, Servomechanisms, Control systems, Control systems design, Finite element methods, Astronomy, Observatories

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Proceedings Article | 4 February 2003 Paper

Structure design and analysis of the special mounting and tracking system of the LAMOST

Guoping Li, Bozhong Gu, Dehua Yang, Guoming Wang, Yuefei Wang

Proceedings Volume 4837, (2003) https://doi.org/10.1117/12.457957

KEYWORDS: Mirrors, Telescopes, Spherical lenses, Structural design, Astronomical imaging, Optical mounts, Reflector telescopes, Active optics, Astronomical telescopes, Space telescopes

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Proceedings Article | 4 February 2003 Paper

Active support system of LAMOST reflecting Schmidt plate

Xiangqun Cui, Yeping Li, Xiaoyu Ni, Dehua Yang, Zheng qiu Yao, Guoping Li, Yuefei Wang

Proceedings Volume 4837, (2003) https://doi.org/10.1117/12.457032

KEYWORDS: Actuators, Mirrors, Active optics, Finite element methods, Telescopes, Monochromatic aberrations, Segmented mirrors, Deformable mirrors, Image segmentation, Mirror structures

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Proceedings Article | 25 August 1998 Paper

Support structure of LAMOST Schmidt plate MA

Xiangqun Cui, Dehua Yang

Proceedings Volume 3352, (1998) https://doi.org/10.1117/12.319259

KEYWORDS: Actuators, Space telescopes, Mirrors, Telescopes, Reflector telescopes, Monochromatic aberrations, Mirror structures, Optical instrument design, Structural design, Finite element methods

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Showing 5 of 34 publications

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