Analytical evaluation of the lifetime of a three-axle bogie frame using the analytical model validated through experimental modal analysis

被引：0

作者：

Ion, Manea ^{[1
]}

Ioan, Sebesan ^{[2
]}

Mihai, Matache ^{[3
]}

Gabriel, Prenta ^{[1
]}

Catalin, Firicel ^{[1
]}

机构：

[1] SC Softron SRL, Calibrat & Mech Testing Lab, Craiova 40, Dolj, Romania

[2] Univ Politehn Bucuresti, Sect 6,Splaiul Independentei 313, Bucharest, Romania

[3] INMA Bucharest, Sect 1,Blv Ion Ionescu de la Brad 6, Bucharest, Romania

来源：

14TH INTERNATIONAL CONFERENCE ON VIBRATION ENGINEERING AND TECHNOLOGY OF MACHINERY (VETOMAC XIV) | 2018年 / 211卷

关键词：

D O I：

10.1051/matecconf/201821106004

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The fatigue strength validation by tests of the railway bogie frames requires existence of an expensive laboratory and a long time for testing, of about 6 to 10 months. Considering these aspects, the european norms admit that fatigue tests can be replaced by finite elementes analysis, with condition that analytical model to be correctly realized and validated by tests. Experimental modal analysis provides a powerful tool for validation of the FEA model through experimental data. The article presents an application for analytical assessment of the fatigue strength for a three-axle locomotive bogie frame, before sending it to the laboratory fatigue tests. Using Ansys, it was carried out the structural analysis of the bogie frame, rezulting the modal model characterized by the modal parameters: eigenfrequencies and eigenshapes. The analytical model was validated through an EMA application carried out on the bogie frame and correlation analysis of the EMA and FEA models. The analytical model and data files containing the simulated vertical, transverse and twist loads, applied to the bogie frame according to EN13749/2011, constitutes the input data for nCode program, that evaluates the bogie frame lifetime using appropriate stress curves and a recognized hypothesis of damage accumulation.

引用

页数：6