Boiko T. Method of calculation of the working stresses providing a design service life of a wing of the plane

Object: fatigue damages accumulation process of a structure in typical flight at the set in large quantities-inertial parameters of the plane; aim: development and substantiation of a method of calculation of the working stresses in a wing structure of the carrier, providing a design service life, taking into account a profile of typical flight; methods: method of durability calculation by the nominal stresses, probabilistic-statistical method, finite element method; results: the ability to decrease the amount of experimental researches at the designing stage, ability of choosing rational structure ensuring design service life; new approach: the method of calculation of the working stresses providing a design service life is developed, dependence of working stresses in zones of a constructive irregularity from a design service life for the first time is received, the new approach to the account of asymmetry of a cycle loading with variable level of average pressure is offered, the method of calculation of transfer functions of the power factor in structurals is developed, field: aerospace production.