The research of the reflecting surface strains for the lightweight two-layer mirror

P. E. Tovstik, S. B. Filippov

Research output: Contribution to journalArticlepeer-review

Abstract

Equations are derived for description of the stress-deformed state of a two-layer perforated plate, the lower layer of which represents itself a system of rectilinear ribs. A calculation is carried out of displacements of a two-layer circular plate of a plane-convex mirror of a telescope. The plate is under action of the dead weight and leans on three points situated on a circle at equal distance one from the other. The optimal radius of the circle is determined which corresponds the minimum value of the mean-square deflection of the telescope mirror. The dependence of the deflection on the circle radius is presented.

Original languageEnglish
Pages (from-to)87-91
Number of pages5
JournalVestnik Sankt-Peterburgskogo Universiteta. Ser 1. Matematika Mekhanika Astronomiya
Issue number1
StatePublished - Jan 1994

Scopus subject areas

  • Mathematics(all)
  • Physics and Astronomy(all)

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