Locations optimization of multiple cable-drivers for an anti-wind disturbance system in large antenna

Abstract

Since the structural vibration deformation of a large antenna under wind disturbance leads to the pointing deterioration, an adaptive anti-wind disturbance system was presented by Liang et al. (Int. J. Antennas Propag., Article ID 2015341, 2019). To further improve the vibration suppression performance, this paper presents a locations-optimization algorithm of multiple cable-drivers for the anti-wind disturbance system. First, according to the spatial geometric relationship among the antenna structure, single slide track, four cables and drivers, the feasible domain of the drivers is determined. Next, the separate optimization method, and the joint optimization method for the locations of the four drivers are proposed, respectively. Finally, the simulation implementation of a 7.3 m antenna under various wind conditions is used to compare the joint optimization method and the separate optimization method.

Keywords

Large antenna anti-wind disturbance feasible region location optimization

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References

Zhang

Huang

Wang

, et al. An active pointing compensator for large beam waveguide antenna under wind disturbance. IEEE-ASME Trans Mechatron 2016; 21: 860–871.

Gawronski

. Control and pointing challenges of large antennas and telescopes. IEEE Trans Control Syst Technol 2007; 15: 276–289.

Douglas C-J. The Australia telescope national facility. In: 29th URSI general assembly and scientific symposium (URSI GASS), Beijing, China, 2014.

Kaercher HJ and Baars JWM. Design of the large millimeter telescope/gran telescopio millimetrico (LMT/GTM). In: Radio telescope, Proc SPIE 2000; 4015: 155–168.

Greve

MacLeod

. Thermal model calculations of enclosures for millimeter wavelength radio telescopes. Radio Sci 2001; 36: 1111–1128.

Baars

JWM

Kaercher

. Seventy years of radio telescope design and construction. URSI Radio Sci Bull 2017; 2017: 15–38.

Ukita

. Wind-induced pointing errors and surface deformation of a 10-m sub-millimeter antenna. Proc SPIE 2010; 7733: 77331D1–77331D11.

Gawronski

. Antenna control systems: from PI to H infinity. IEEE Antennas Propag Mag 2001; 43: 52–60.

Qiu

Sun

Wang

, et al. Practical wind-disturbance rejection for large deep space observatory antenna. IEEE Trans Control Syst Technol 2014; 22: 1983–1990.

10.

Zhang

Huang

Song

, et al. Analysis of reflector vibration-induced pointing errors for large antennas subject to wind disturbance. IEEE Antennas Propag Mag 2015; 57: 46–61.

11.

Gawronski

. Modeling and control of antennas and telescopes, New York: Springer, 2004.

12.

Liang

Huang

Zhang

. A new adaptive system for suppression of transient wind disturbance in large antennas. Int J Antennas Propag 2019.

13.

Liang

Huang

Zhang

, et al. Reconstruction of vibration-deformation-induced pointing error via optimized acceleration measurement points for large reflector antennas. Proc IMechE, Part C: J Mechanical Engineering Science 2019; 233: 3417–3428.

14.

Liang

Huang

Zhang

. Real-time estimation of wind-induced pointing error via accelerations measurement for large reflector antenna. IEEE Access 2020; 8: 71812–71820.