Quasi-Static Optics-Based Surface Control of an In-Plane Actuated Membrane Mirror

Shepherd, Michael J.; Cobb, Richard; Peterson, Gina A.; Palazotto, Anthony N.

doi:10.2514/1.24847

Cited by 6 publications

(3 citation statements)

References 16 publications

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“…It can be written as [10] (2) where r is the radial coordinates on membrane, h is the thickness of membrane, w is the deformation of membrane, Tr is the tension of membrane, E is Young's modulus, and p is the pressure loaded on the membrane.…”

Section: Design Of Simulation Modulementioning

confidence: 99%

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Analysis and simulation of the surface shape of membrane mirror applied by non-uniform load

Geng-sheng

Tang

et al. 2010

5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes

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Research and manufacture of large aperture and lightweight telescope is urgently needed with the development of space optical system and the requirement for high resolution, and becomes one of the main tasks in space science area in future. The membrane mirror with a substrate of flexible film has characteristics of lightweight, compact-deployable and low cost compared to the traditional one and it is prospected to be applied in future large space optical systems.The surface shape control is one of the key technologies for the manufacture of membrane mirror. Based on the previous research works carried out in our lab, the surface shape of membrane mirror applied by non-uniform load is theoretically analyzed and simulated in the membrane mirror's surface shape control system in this paper. The construction of the system and the realization of the functions are described in detail. The analysis and simulation of surface shape control of membrane mirrors with 300mm aperture and different F numbers are performed applied by both non-uniform load and uniform load in the control system. The results of the simulation show that the RMS wavefront error of the membrane mirror under non-uniform load can be controlled and improved in two orders of magnitude comparing to that of the membrane mirror under uniform load, which is prospected to be a viable method for the design and manufacture of large aperture and lightweight membrane mirror with high surface accuracy.

show abstract

Section: Design Of Simulation Modulementioning

confidence: 99%

“…The membrane mirror with a substrate of flexible film has characteristics of lightweight, compact-deployable and low cost compared to the traditional one and it is prospected to be applied in future large space optical systems [1][2][3][4][5] .…”

Section: Introductionmentioning

confidence: 99%

Analysis and simulation of the surface shape of membrane mirror applied by non-uniform load

Geng-sheng

Tang

et al. 2010

5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes

View full text Add to dashboard Cite

show abstract

“…Based on the properties of high resolution and large field of view, large aperture antennas, membrane reflectors and other payloads have become important development direction of deep space exploration, space communication and Earth observation technologies [1][2][3]. Limited by carriers, these reflectors and antennas often adopt collapsible, low-massed membrane structures.…”

Section: Introductionmentioning

confidence: 99%

Modelling and experiments of PLZT/PVDF hybrid drive method for non-contact shape adjustment

Yue

Jiang

Long

et al. 2014

International Journal of Applied Electromagnetics and Mechanics

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In order to improve the technical specifications of space reflectors, antennas and other payloads on Earth observation, space communication, deep space exploration and other fields of space applications, people urgently need to enhance the surface shape control accuracy of these large complex curvature flexible structures. Based on the photovoltaic effect and converse piezoelectric effect, this paper presents a non-contact shape-adjusting method which adopts a new space energy conversion: using the PLZT photovoltage, which is controlled by the ultraviolet, to activate the PVDF attached on the flexible structure surface, and adjust and control the structure's shape. This paper firstly built up the electric model of the PLZT/PVDF hybrid drive, derived the constitutive relation of light-electric-mechanical energy field conversion, and determined the key parameters in mathematical model by principle experiments. Then, taking a flexible cantilever beam as the control object, actuation equation of the PVDF bonded structure was built, and actuation properties and influence factors of the cantilever beam actuated by the PLZT/PVDF hybrid drive were simulated and analyzed. After that, the hybrid drive experiment system was built up, and deflecting effect of using ultraviolet illuminated PLZT to actuate PVDF bonded cantilever beam was tested, whose result verified the validity of theoretical modeling and simulation analysis. Lastly, characteristics of the hybrid drive method and conventional PVDF driving were compared, and space application direction of this method was pointed out.

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Distributed sensing signal analysis of deformable plate/membrane mirrors

Yue

Deng

et al. 2017

Mechanical Systems and Signal Processing

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Quasi-Static Optics-Based Surface Control of an In-Plane Actuated Membrane Mirror

Cited by 6 publications

References 16 publications

Analysis and simulation of the surface shape of membrane mirror applied by non-uniform load

Analysis and simulation of the surface shape of membrane mirror applied by non-uniform load

Modelling and experiments of PLZT/PVDF hybrid drive method for non-contact shape adjustment

Distributed sensing signal analysis of deformable plate/membrane mirrors

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