SU1599690A1

SU1599690A1 - Bed for testing articles for action of acceleration pulse with super-imposed vibrations

Info

Publication number: SU1599690A1
Application number: SU894658426A
Authority: SU
Inventors: Владимир Кузьмич Манжосов; Сергей Иванович Калашников; Александр Владимирович Никишин; Алексей Борисович Денисов
Original assignee: Киргизский Государственный Университет Им.50-Летия Ссср
Priority date: 1989-01-09
Filing date: 1989-01-09
Publication date: 1990-10-15

Abstract

Изобретение относитс к испытательной технике. Целью изобретени вл етс расширение эксплуатационных возможностей за счет повышени частоты наложенных колебаний. Стенд содержит платформу 1 с приводом 2 ее вращени , основной ма тник 3 с осью 4 поворота, стол 5 с приспособлением 6 дл креплени испытуемого издели 7, фиксатор 8 дл удержани ма тника 3 в исходном положении и устройство дл возбуждени наложенных колебаний. Последнее включает кулачок 9, изгибаемый упругий элемент 10 и дополнительный ма тник, образованный столом и приспособлением 6, смещенным относительно оси вращени стола. Кулачок выполнен с расположенными по окружности выступами, которые взаимодействуют с упругим элементом, и прикреплен к столу. Под действием центробежных сил дополнительный ма тник вращает кулачок, на который действуют импульсы со стороны упругого элемента при деформировании его выступами. Это приводит к наложению колебаний на импульс ускорени , наличие упругого элемента и выступов на кулачке позвол ет повысить частоту наложенных колебаний. 3 ил.This invention relates to a testing technique. The aim of the invention is to expand the operational capabilities by increasing the frequency of superimposed oscillations. The stand contains a platform 1 with a drive 2 of its rotation, a main case 3 with an axis of rotation 4, a table 5 with a device 6 for fastening the test article 7, a clamp 8 for holding the model 3 in the initial position and a device for initiating superimposed oscillations. The latter includes a cam 9, a flexible elastic element 10, and an additional tart formed by the table and the device 6 displaced relative to the axis of rotation of the table. The cam is made with circumferentially protrusions that interact with the elastic element and is attached to the table. Under the action of centrifugal forces, the additional axis rotates the cam, which is affected by impulses from the side of the elastic element when it is deformed by its projections. This leads to the imposition of oscillations on the acceleration impulse; the presence of an elastic element and protrusions on the cam makes it possible to increase the frequency of superimposed oscillations. 3 il.

Description

Фиг. гFIG. g

Claims

Claim

A test bench for testing products for the action of an accelerated impulse with superimposed oscillations, comprising a platform with a drive for its rotation, a main pendulum whose axis of rotation is parallel to the axis of rotation of the platform and located on its periphery, mounted on the end of the main pendulum at a distance from its axis of rotation equal to the distance between the last and the axis of rotation of the platform, a table with a device for attaching the test product, a device for exciting superimposed vibrations, including a cam mounted for rotation due to the action of centrifugal forces on the additional pendulum, a latch for holding the main pendulum with the elements mounted on it in its original position, characterized in that, in order to expand operational capabilities by increasing the frequency of superimposed vibrations, the device for exciting superimposed vibrations is equipped with a flexible elastic element mounted on the main pendulum, the cam is made with protrusions located around the circumference, serving to interact with the elastic element, and is attached to the table, which is mounted to rotate relative to the main pendulum, and the fixture for mounting the test product is offset relative to the axis of rotation of the table to form an additional pendulum with it.

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