Improved Figure Control With Edge Application Of Forces And Moments

D. M. Aspinwall; T. J. Karr

doi:10.1117/12.958765

15 August 1980 Improved Figure Control With Edge Application Of Forces And Moments

D. M. Aspinwall, T. J. Karr

Proceedings Volume 0228, Active Optical Devices and Applications; (1980) https://doi.org/10.1117/12.958765
Event: 1980 Technical Symposium East, 1980, Washington, D.C., United States

Abstract

A new actuation scheme for mirror figure control, introducing a complete set of membrane shear and bending stresses onto the edges of the mirror, is presented. Thermoelastic response of both segmented and continuous mirrors is analyzed from a closed form solution of the "exact" Love theory of thin spherical shells. There are significant departures from Reissner's theory of shallow shells. Very low residual figure error is possible by edge control alone, lower than with interior point loads. Minimum rms residual error stress profiles are computed. Engineering applications are discussed.

Citation Download Citation

D. M. Aspinwall and T. J. Karr "Improved Figure Control With Edge Application Of Forces And Moments", Proc. SPIE 0228, Active Optical Devices and Applications, (15 August 1980); https://doi.org/10.1117/12.958765

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