Abstract
Controlling the friction between wheel and rail is direct and very effective measures to improve the curving performances of railway trucks, because the curving performances depend much on friction characteristics. Authors have proposed a method, “friction control”, which utilizes friction modifier (specialized for wheel / rail contact) with onboard spraying system. With the method, not only friction coefficient, but also friction characteristics can be controlled as expected. In this paper, authors introduce a very interesting finding that revolution difference between leading and trailing axles depends on effectiveness of friction control which was found in the procedure of simulation. In order to certify the reality of the finding, authors carried out experiments with 1/10-scaled model vehicle. And as the result, the potential use of revolution difference between the leading and trailing as a means to evaluate effectiveness of friction control was recognized.
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