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Related Experiment Video

Updated: Jun 16, 2026

Bringing the Visible Universe into Focus with Robo-AO

Bringing the Visible Universe into Focus with Robo-AO

Published on: February 12, 2013

Wind buffeting of large telescopes.

Douglas G MacMynowski¹, Torben Andersen

¹Control and Dynamical Systems, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, USA. macmardg@cds.caltech.edu

|February 2, 2010

Summary

This summary is machine-generated.

Turbulent wind loads cause significant image jitter in ground-based telescopes. A simplified model accurately predicts this wind response and its sensitivity to telescope design parameters.

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Area of Science:

Optical engineering
Aerodynamics
Structural dynamics

Background:

Ground-based optical telescopes face significant dynamic disturbances from unsteady wind loads.
Turbulence within telescope enclosures is a primary source of wind-induced vibrations.
Minimizing wind response is crucial for telescope enclosure, structure, and control system design.

Purpose of the Study:

To develop and validate a simplified model for predicting telescope image jitter caused by wind.
To analyze the sensitivity of image jitter to various telescope design parameters.

Main Methods:

Utilized detailed integrated modeling to capture relevant wind physics.
Verified a proposed simplified model against a more complex, detailed model.
Investigated the influence of design elements on wind response.

Main Results:

The simplified model effectively captures the essential physics of wind-induced image jitter.
Identified key telescope design elements that significantly influence wind response.
Quantified the sensitivity of image jitter to a broad spectrum of design parameters.

Conclusions:

A simplified modeling approach is effective for understanding and predicting wind effects on optical telescopes.
The model provides valuable insights for optimizing telescope designs to mitigate wind disturbances.
This work aids in minimizing image jitter for improved astronomical observations.