A computation of oscillations for large aspect ratio wings with engines installed on elastic pylons

Аuthors

Grishanina T. V.^1*, Savoushkina A. Y.²

1. Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia
2. Company «Tupolev», 17, nab. Akademika Tupoleva, Moscow, 105005, Russia

*e-mail: t.grishanina@mai.ru

Abstract

Bending-torsional oscillations for large aspect ratio wings are considered taking into account transversal shears, shell angle of taper as well as engines installed on elastic pylons. A boundary problem for harmonic oscillations described with ordinary differential equations and boundary conditions caused by concentrated reactions from the elastic pylons with attached engines is solved numerically reducing it to the Cauchy initial value problem for ordinary differential equations.