Экспериментальные исследования грузового вагона

Abstract

В статье описаны методика и результаты прочностных статических испытаний крытого вагона модели 11-9962. Для проверки работоспособности, прочности, жесткости и устойчивости вновь спроектированного вагона он подвергался нормативным нагрузкам, которые имитируют реальные эксплуатационные. Регистрация напряжений в элементах конструкции вагона осуществляется при помощи тензорезисторов. Получены картины распределений напряжений по элементам вагона. Сделан вывод об удовлетворении критериев прочности, предъявляемых к конструкциям данного типа.

This article describes the methodology and results of static strength tests covered wagon model 11-9962. To verify the functionality, strength, stiffness and stability of the newly designed wagon he was subjected to normative loads that mimic real operating. Registration of stresses in wagon’s structural elements carried out by means strain gages. Stress distributions on the elements of the wagon were obtained. It is concluded on satisfaction the strength criteria requirements for structures of this type. On the basis of the conducted static tests of pre-production model of covered vagonamodely 11-9962, made LTD. «Novozybkovskyy machine-building plant» and projected by subdivisions of uk rtkh, it is possible to draw following conclusions: sizes of total tensions in the elements of pre-production model of carriage at the action of the static loadings on I, to the III calculations and repairs modes did not exceed the sizes of the assumed tensions; after testing, at visual examination, it is not found out the damages, cracks and remaining deformations of elements of experimental carriage. Thus, accordance of construction of carriage to the operating norms is confirmed. Comparison of information of experimental tests will be conducted in future, with one side, and numeral calculations - with other.