CADE normally uses the Finite Element Method (FEM) to undertake simulation modelling and analysis of complex structural elements. This method is often used to analyse critical elements and mechanical parts, whose performance may be conditioned by other mechanical elements or systems.
In the structural analysis of railway rolling stock, specifically in frame structures of vehicles, the consideration of suspension systems (bogies) in its Finite Element Analysis becomes highly relevant: it allows to characterise (in the most realistic way possible) the bogie rigidity transmitted to the frame structure, according to the requirements of the standard “UNE-EN 12663 (2014) Structural requirements of railway vehicle bodies”.
The difference between the consideration or not consideration of the suspension system in the finite element analysis can be easily quantified. The results can be compared by analyzing the simulation of a multi-axle railway frame, applying the finite element method and using ANSYS software. For this purpose, two calculation models must be compared:
Stress distribution in both calculation models analysed (with the consideration of the suspension system and without it).
When validating this type of frame, the stress results might be the most relevant indicators. Therefore, not to incorporate the suspension systems in finite element analysis could be a too conservative assumption, from the structural integrity point of view, and unnecessarily increase material and manufacture costs.
In conclusion, by implementing suspension systems in railway frame validation, CADE is able to:
A bogie (also called railroad track or wheel truck) is the suspension system placed underneath a railway vehicle.
It has a primary suspension (which transmits efforts between the wheels and the bogie) and a secondary suspension (which transmits efforts between the bogie and the frame of the railway vehicle). Both suspensions have a series of springs and shock absorbers that allow to transmit efforts between the wheels, the bogie and the railway frame.
Structural Integrity Assessment During Local PWHT Post weld heat treatment (PWHT) is a thermal treatment usually performed in steels that have been welded. Its object is to ensure that the welding properties are suitable for its expected operation according to
3D POINT CLOUD GENERATION TO MODIFY EXISTING SYSTEMS OBJECTIVE In projects for the modification or upgrading of existing industrial facilities, CADE regularly performs 3D laser scans in plants, in order
PIPING STRESS ANALYSIS AND FINITE ELEMENT ANALYSIS (FEA) FOR CREEP ASSESSMENT The owner of a steel plant in DURGAPUR (India) requested CADE to assess the remaining life and mechanical integrity
FATIGUE ANALYSIS OF PROCESS EQUIPMENT USING FINITE ELEMENT METHOD OBJECTIVE A significant supplier of process equipment and pressure vessels requested CADE’s services to perform design validation for fatigue of a
Albacete
Parque Científico y Tecnológico
Paseo de la Innovación 3, 02006 Albacete – España
Tel. +34 967 19 01 72
C/Raimundo Fernández Villaverde, 53 (Entreplanta)
28020
Madrid – España
Albacete
Parque Científico y Tecnológico
Paseo de la Innovación 3, 02006 Albacete – España
Tel. +34 967 19 01 72
C/Raimundo Fernández Villaverde, 53 (Entreplanta)
28020
Madrid – España
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