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Scientific paper ID 1948 : 2020/3
METHODS FOR CALCULATING THE FATIGUE STRENGTH OF ELEMENTS OF THE WAGON BOGIE
Vanio Vanchev Ralev The reliable operation of the running gear of rolling stock and in particular of wagon bogies is one of the main issues that designers, repair and maintenance staff involved in the design, construction, production, operation and repair of these important and responsible for traffic safety elements. The quality of the transport process as a whole, the protection of the life and health of passengers, as well as the storage of the transported goods, directly depend on the condition of the running gear, including the quality, reliability, durability of bogies and their elements. The reliability of technical systems depends on the condition of their elements throughout the period of operation. The elements of the wagon bogies are subjected to cyclic loads. A number of existing calculation and testing methods are indicated in the publication for fatigue failure of the material. This publication systematizes the methods for calculating elements of the wagon bogie of fatigue strength. An analyzed are the unified UIC/ORE method in modification “R-method” with evaluation according to the “σmax-r” diagram, known as the Moore-Commerce-Jasper diagram and according to Goodman”s diagram, recommended in the ERRI bulletin B12/RP17.
подвижен железопътен състав вагонна талига уморна якост.rolling stock wagon bogie fatigue strengthVanio Vanchev Ralev BIBLIOGRAPHY [1] Penchev Ts., Atmadzhova D. Yakost i dalgotraynost na avtomobilna i zhelezopatna tehnika., VTU, S. 2007 ( [1] Пенчев Ц., Атмаджова Д. Якост и дълготрайност на автомобилна и железопътна техника., ВТУ, С. 2007 ) [2] Penchev Ts., Atmadzhova D. Otnosno nyakoi izhodni postanovki, printsipi i kriterii pri opredelyane koefitsienta na sigurnost za umorna yakost na transportni konstruktsii, MNK ”TRANSPORT”, 2009g br.3, reg. No: 0424, str. VІ-61 do VІ-67, ISSN N2367-6620, https://mtc-aj.com/library/424.pdf ( [2] Пенчев Ц., Атмаджова Д. Относно някои изходни постановки, принципи и критерии при определяне коефициента на сигурност за уморна якост на транспортни конструкции, МНК ”ТРАНСПОРТ”, 2009г бр.3, рег. No: 0424, стр. VІ-61 до VІ-67, ISSN N2367-6620, https://mtc-aj.com/library/424.pdf ) [3] Atmadzhova D., The Bulgarian State Railways experience in determining fatigue strength of rolling stock structures, XVI Conference RAILCON‘14 Niš, Serbia, at the Faculty of Mechanical Engineering October, 2014, pp.69-72 , http://www.railcon.rs/zbornik/Proceedings RAILCON `14.pdf [4] Nikolov V., Yakost i dalgotraynost na avtomobilna i zhelezopatna tehnika. Rakovodstvo za uprazhneniya., http://tt.vtu.bg/learning/Rykovodstvo_upraz... ( [4] Николов В., Якост и дълготрайност на автомобилна и железопътна техника. Ръководство за упражнения., http://tt.vtu.bg/learning/Rykovodstvo_upraz... ) [5] Аtmadzhova D., Some data for calculation of fatigue in probabilistic aspect of railway vehicles., XIV Conference RAILCON”10 takes place in Nis, Serbia, at the Faculty of Mechanical Engineering on 07 - 08 October, 2010, http://www.railcon.rs/zbornik/ZBORNIK ZELKON 10.pdf [6] ERRI (ORE) QUESTION B12 Standardisation des Wagons Rapport №17, Utrecht 1977-1980 [7] DVS-1612, 2017 Design and endurance strength analysis of steel welded joints in rail-vehicle construction [8] Slavchev S. Optimizatsiya na izchislitelniya protses pri izpolzvane na chisleni metodi za izchislyavane na yakostta na kosha na tovarni vagoni, avtoreferat, TU-Sofiya, 2015 ( [8] Славчев С. Оптимизация на изчислителния процес при използване на числени методи за изчисляване на якостта на коша на товарни вагони, автореферат, ТУ-София, 2015 ) [9] TGL 19340, DDR-Standard Dauerfestigkeit der Maschinenbauteile. Berlin: Verlag für Standard, 1984 |
