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The purpose of this work is to modernize the metal structure of the body of a dynamometer car  for special technical purposes using modern modeling tools. To determine the loading of the structural elements of the dynamometer car, a calculated three-dimensional model of the car body was developed in the SolidWorks 2021 software package. With the use of the Ansys Workbench 2021 engineering program and the application of the finite element method, theoretical studies were carried out and the reinforcement points of the car frame were determined. The program and methodology of static tests for the strength of the body of a prototype dynamometer car model 61-907-DM for the railways of the Republic of Uzbekistan have been developed. The results of static tests for compressive/tensile strength of the car performed on the stand for loading the frames of cars and elements of coupling devices are presented. The stress-strain state of the car structure is determined when statically applied longitudinal test loads are applied to it.

  • Web Address
  • DOI
  • Date of creation in the UzSCI system 18-12-2024
  • Read count 58
  • Date of publication 30-06-2022
  • Main LanguageIngliz
  • Pages110-120
English

The purpose of this work is to modernize the metal structure of the body of a dynamometer car  for special technical purposes using modern modeling tools. To determine the loading of the structural elements of the dynamometer car, a calculated three-dimensional model of the car body was developed in the SolidWorks 2021 software package. With the use of the Ansys Workbench 2021 engineering program and the application of the finite element method, theoretical studies were carried out and the reinforcement points of the car frame were determined. The program and methodology of static tests for the strength of the body of a prototype dynamometer car model 61-907-DM for the railways of the Republic of Uzbekistan have been developed. The results of static tests for compressive/tensile strength of the car performed on the stand for loading the frames of cars and elements of coupling devices are presented. The stress-strain state of the car structure is determined when statically applied longitudinal test loads are applied to it.

Русский

Целью данной работы является модернизация металлоконструкции кузова динамометрического вагона специально-технического назначения с использованием современных инструментов моделирования. Для определения нагруженности элементов конструкции динамометрического вагона была разработана расчетная трёхмерная модель кузова вагона в программном комплексе SolidWorks 2021. С использованием инженерной программы AnsysWorkbench 2021 и применением метода конечных элементов были выполнены теоретические исследования и определены места усиления рамы вагона. Разработана программа и методика статических испытаний на прочность кузова опытного образца динамометрического вагона модели 61-907-ДМ для железных дорог Республики

Узбекистан. Приведены результаты статических испытаний на прочность при сжатии/растяжении вагона, выполненных на стенде для нагружения рам вагонов и элементов сцепных устройств. Определено напряженно-деформированное состояние конструкции вагона, при действии на нее статически приложенных продольных испытательных нагрузок.

Ўзбек

Ushbu ishning maqsadi zamonaviy modellashtirish vositalaridan foydalangan holda maxsus texnik maqsadlar uchun dinamometrik vagon kuzovi metall konstruktsiyasini modernizatsiya qilish. Dinamometrik vagonning tarkibiy elementlarining yuklanishini aniqlash uchun 
SolidWorks 2021 dasturiy ta'minot majmuasida vagon konstruksiyasining hisobli uch o'lchovli modeli ishlab chiqilgan. Ansys Workbench 2021 muhandislik dasturi va cheklangan elementlar usulidan foydalangan holda nazariy tadqiqotlar o'tkazildi va vagon ramasining  mustahkamlash joylari aniqlandi. O'zbekiston Respublikasi temir yo'llari uchun 61-907-DM rusumli dinamometrik vagonning prototipi kuzovining mustahkamligini tekshirish uchun statik sinov dasturi va metodologiyasi ishlab chiqildi. Vagonlarning ramalari va ulash moslamalari
elementlarini yuklash uchun mo’ljallangan stendda vagonning mustahkamligi uchun statik sinov, ya’ni siqish/cho'zish ishlari natijalari keltirilgan. Vagon konstruktsiyasining kuchlanish deformatsiyalangan holati unga statik qo'llaniladigan uzunlamasına sinov yuklari ta'sirida 
aniqlanadi. Vagonga qo’yilgan statik bo’ylama sinov kuchlari natijasida vagon konstruksiyasining yuklamadeformatsiya holati aniqlandi

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