The Development Of Rubber Elastic Components For A Self-Steer Locomotive Bogie

Bogie of locomotive becomes more and more complicate with the technical improvement; it requires much more rubber elastomeric components than ever, and higher performances of the rubber elastomeric component are expected, for layer spring and bush there are always defined multy direction performance, to meet all these requirements, it’s necessary make deep research to get the design method to make the rubber elastomeric component meet the multy direction requirement at the same time.The main task of this thesis is developing rubber elastomeric component for a selfsteer bogie of a company from overseas, the bogie need lots of rubber elastomeric components, the main components such as layer spring and bush have multy direction stiffness requirement. This thesis will finds out method to make the design meets multy direction requirement and conclude rule of how rubber layer numbers effect on stiffness change by developing these components.Compare the FEA results of different structure, it shows that with specific space envelope, the more rubber layer, the higher compression stiffness and the lower shear stiffness for a layer spring, higher radial stiffness and lower torsional stiffness for a bush. The accuracy of the FEA calculation was approved by test result of the prototype, so the rule was approved too.In the end this thesis analysis application of rubber component on bogie, and summarized that to makes full use of rubber component, it should choose right kind of rubber elastomeric component according to load and displacement.