A new type of motor rubber bushing with small radial-to-axial stiffness ratio for high-speed EMUs was designed to meet the installation requirements of motor suspension for a certain high-speed train unit.Through finite element simulation analysis,static stiffness test,fatigue test and running verification,the results show that rubber bushing with this structure can meet the technical require-ments,and the pre-compression of rubber is simple and effective,the stiffness range is adjustable,the fatigue performance is good,and it can meet the high temperature tolerance of the motor operating environment.
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