Численные исследования грузового вагона
Вантажиться...
Дата
2017
ORCID
DOI
10.20998/2413-4295.2017.23.08
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
НТУ "ХПИ"
Анотація
В данной работе проведен статический прочностной расчет кузова и рамы вагона крытого модели 11-9962 силой тяжести брутто 0,922 МН. Расчетная схема вагона учитывает силы, действующие на него в условиях эксплуатации. Рассмотрены режимы нагружения: I, III основные режимы, режим соударения и рывка, ремонтные режимы, режим загрузки вагона, проверка прочности крыши. Из результатов расчета следует, что напряжения во всех элементах кузова и рамы вагона крытого модели 11-9962 при всех расчетных режимах не превышают допускаемые. Расчет показал хорошее соответствие с результатами испытания на прочность опытного образца вагона.
In this paper static strength analysis of body and frame of the covered railcar model 11-9962 with the weight of 0.922 MN is carried out. Numerical study of freight railcar is carried out by the finite element method. Calculation model consists of plates and beams linked together at the nodal points simulating the elements of the railcar body. The main objective of the static strength analysis was to evaluate strength and bearing capacity of railcar structure and to evaluate the conformity of freight railcar structure to regulatory requirements. Typical for the static loading mode is a single and continuous application of an external load, gradually increasing from zero to the maximum value. The calculation scheme of railcar takes into account forces acting on it in operating conditions. Load modes considered are: I, III basic modes, collision and jerk mode, repair modes (when jacking up a railcar by jacks), railcar loading mode (on possibility of using electric and autoloader for loading), roof strength test. From the analysis results it follows that stresses in all body elements and frame of the covered railcar model 11-9962, for all design modes, do not exceed the permissible values, and railcar structure conforms to the current regulations. Analysis showed good agreement with the test results for strength of the prototype railcar.
In this paper static strength analysis of body and frame of the covered railcar model 11-9962 with the weight of 0.922 MN is carried out. Numerical study of freight railcar is carried out by the finite element method. Calculation model consists of plates and beams linked together at the nodal points simulating the elements of the railcar body. The main objective of the static strength analysis was to evaluate strength and bearing capacity of railcar structure and to evaluate the conformity of freight railcar structure to regulatory requirements. Typical for the static loading mode is a single and continuous application of an external load, gradually increasing from zero to the maximum value. The calculation scheme of railcar takes into account forces acting on it in operating conditions. Load modes considered are: I, III basic modes, collision and jerk mode, repair modes (when jacking up a railcar by jacks), railcar loading mode (on possibility of using electric and autoloader for loading), roof strength test. From the analysis results it follows that stresses in all body elements and frame of the covered railcar model 11-9962, for all design modes, do not exceed the permissible values, and railcar structure conforms to the current regulations. Analysis showed good agreement with the test results for strength of the prototype railcar.
Опис
Ключові слова
вагон крытый, статический прочностной расчет, режимы нагружения, допускаемые напряжения, метод конечных элементов, static strength analysis, allowed stresses, finite element method
Бібліографічний опис
Численные исследования грузового вагона / А. Д. Чепурной [и др.] // Вісник Нац. техн. ун-ту "ХПІ" : зб. наук. пр. Сер. : Нові рішення в сучасних технологіях = Bulletin of National Technical University "KhPI" : coll. of sci. papers. Ser. : New solutions in modern technologies. – Харків : НТУ "ХПІ", 2017. – № 23 (1245). – С. 47-55.