Open AccessDeformation analysis of cylindrical lattice body of spacecraft in zone of high-pressure tank attachment
Author(s) -
А А Хахленкова,
A. E. Burov,
А.В. Лопатин
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1093/1/012011
Subject(s) - deflection (physics) , structural engineering , spacecraft , finite element method , shell (structure) , materials science , inertia , composite number , rib cage , stress–strain curve , stress (linguistics) , composite material , engineering , physics , aerospace engineering , linguistics , philosophy , classical mechanics , optics
Finite element analysis of the strain-stress state in a load-bearing shell of the spacecraft body under longitudinal and lateral inertia loads was carried out. The shell is a composite anisogrid structure constituted by circumferential and helical ribs made of carbon fiber composite. A massive fuel storage tank is fixed inside the shell by means of a cable-stayed system. The shell structural behaviour in the zone of fuel tank installation was particularly addressed. A local reinforcement with additional circumferential ribs was shown to remarkably reduce the stress level and deflection in the tank attachment zone.