Dynamic surface error response analysis of large-aperture space mirror

2019 ◽  
Author(s):  
Shaojun Bai ◽  
Weiming Tong ◽  
Yufei Huang
Keyword(s):  
Response Analysis ◽  
Dynamic Surface ◽  
Error Response ◽  
Surface Error ◽  
Large Aperture

Dynamic surface response analysis of large-aperture space mirror

2019 ◽  
Vol 48 (11) ◽  
pp. 1114001
Author(s):  
黄宇飞 Huang Yufei ◽  
白绍竣 Bai Shaojun ◽  
高 冀 Gao Ji ◽  
吕 争 Lv Zheng ◽  
徐 嘉 Xu Jia
Keyword(s):  
Response Analysis ◽  
Dynamic Surface ◽  
Surface Response ◽  
Large Aperture ◽  
Surface Response Analysis

Thermal Response Analysis of Large Aperture Optical Components

2008 ◽  
Author(s):  
Yi Zhou ◽  
Dong-hui Lin ◽  
Hai Zhou ◽  
Jun-wei Zhang ◽  
Shi-long Wang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Thermal Response ◽  
Element Model ◽  
Optical Component ◽  
Response Analysis ◽  
Optical Components ◽  
Large Aperture ◽  
Confinement Fusion ◽  
The Finite Element Model

This paper analyze the deformation of large aperture optical components under the thermal load based on the finite element model developed using the ANSYS software, which are used for inertia confinement fusion (ICF) experiments. High precision sensors are used to measure the temperature around the optical components in the target building and to form the temperature changing curve. The biggest temperature change is 0.3°C during 2 hours based on the measurement. The change is then loaded on the finite element model of a typical large aperture optical component to get the deformation of the optical component. The results indicate that the deformation of the optical component can satisfy the stability requirement in the current environment. Meanwhile, the deformation of the optical component is calculated for different temperature changes and the results show that the deformation of the optical component have a direct relationship with the change of temperature.

Accuracy transfer method of large aperture standard mirrors’ absolute surface error

2013 ◽  
Vol 25 (12) ◽  
pp. 3210-3214
Author(s):  
徐凯源 Xu Kaiyuan ◽  
李强 Li Qiang ◽  
刘昂 Liu Ang ◽  
高波 Gao Bo ◽  
何宇航 He Yuhang
Keyword(s):  
Surface Error ◽  
Large Aperture ◽  
Transfer Method

Composite adaptive dynamic surface control of nonlinear systems in parametric strict-feedback form

2016 ◽  
Vol 40 (4) ◽  
pp. 1127-1135 ◽  
Author(s):  
Yassine Soukkou ◽  
Salim Labiod ◽  
Mohamed Tadjine
Keyword(s):  
Nonlinear Systems ◽  
Dynamic Surface Control ◽  
Control Technique ◽  
Design Parameters ◽  
Dynamic Surface ◽  
Surface Error ◽  
Adaptive Dynamic ◽  
Surface Control ◽  
Adaptive Dynamic Surface Control ◽  
Strict Feedback

In this paper, a composite adaptive dynamic surface control scheme is developed for a class of parametric strict-feedback nonlinear systems. The proposed composite adaptation law uses both the surface error and the estimation error to update the parameters. In addition, by using the dynamic surface control technique, the problem of the explosion of complexity in the adaptive backstepping design is avoided. It is proved that the proposed scheme guarantees uniform ultimate boundedness of all signals in the closed-loop system with arbitrary small surface error by adjusting the design parameters. Simulation results demonstrate the effectiveness of the proposed approach for an electrohydraulic actuator system.

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