METHOD FOR DETERMINING INERTIA TENSOR ARTICLE AND BENCH FOR ITS IMPLEMENTATION

FIELD: measuring equipment.SUBSTANCE: invention relates to measurement equipment, in particular to determination of inertia tensor of aircraft and other bodies of cylindrical shape, and can be used in aviation, aerospace engineering and other industries. For method implementation product is installed on positioner, fixed on the platform, then changed position of axes of the article and axis of oscillations of the platform relative to each other, at that in each position of excited oscillating movements of the platform, vibration sensor and recording at registered sensor values determined inertia tensor product. According to a method of mutual position of axes of the article is changed relative to axis of oscillations of the platform, the mutually perpendicular axis of the article and axis formed bisectrix angles between these axes, alternately placed parallel to axis of oscillations of the platform. Stand for determining inertia tensor product comprises a base, rigidly mounted on it supports with hinges on which there is a platform, mechanism of acoustic vibrations, kinematically connected with platform, vibration transducer installed with possibility of recording of turn platform and positioner. Besides, it is equipped with centering Assembly located at the point of conjugation positioner and platform. Platform is mounted on hinges rotational axes of which form axis of oscillations of the platform. Positioner is installed on the platform with possibility of fixation and turn in plane of the platform around centering assembly and is made in the form of a frame and locating blocks, in which there are rings rigidly fixed on the article and made with possibility of fixation and turn in lodgements together with item relative to one of its axes.EFFECT: high accuracy of determining inertia tensor product and simplification of design of the stand.2 cl, 11 dwg Изобретения относятся к измерительной технике, в частности к определению тензора инерции летательных аппаратов и других тел цилиндрической формы, и могут быть использованы в авиации, космической технике и других отраслях промышленности. Для осуществления способа изделие устанавливают на позиционер, закрепленный на платформе, затем поочередно меняют положение осей изделия и оси колебания платформы относительно друг друга, при этом в каждом положении возбуждают колебательные движения платформы, которые регистрируют датчиком колебаний и, по зарегистрированным датчиком значениям, определяют тензор инерции издели