Abstract
This work presents results of strength analyses of a modified freight wagon bogie frame. It consists of two main parts. The first part is addressed to introduction of the structure of a freight wagon bogie frame. It is a modified frame structure, which reflects current requirements of modern railway transport means. The conditions for rail vehicles approval and the main load cases, which every bogie frame must meet for commissioning, are described. The next part deals with computer modelling and analyses of this bogie frame. Strength analyses were performed using the FE method and they were focused on the assessment of stresses in the frame structure. Loads definition and the method of calculation were based on valid norms and standards.
Highlights
The transport of goods by railways represents an important element of a transport service
On one hand there are solutions allowing steering wheelsets in curves by releasing the wheelsets in guidance, but on the other hand such a design meets problems when a freight wagon passes straight sections of tracks [11], [12], [13], [14]
In the second exceptional load case (Figure 4) the frame was loaded by forces acting in the centre pivot and on one side-bearer (FZP = 419.750 kN and FZ1max = 179.892 kN)
Summary
The transport of goods by railways represents an important element of a transport service. It is the environmentally friendly kind of goods transport, which is mainly obvious in international and intermodal transport. The design of rail vehicles has to satisfy conflicting requirements. On one hand it is the rail vehicles weight reducing and on the other hand all the railway transport means must meet the strict safety criteria, standards and norms. Every new designed railway vehicles and construction units, such as bogies must meet before commissioning satisfy the terms set out in codes [4], [5]
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