Research Of Evaluation Method And Model Design On Synthesis Comfort Of High-speed Train

More and more people prefer travelling by high-speed train with the rapid development of high-speed train, so passengers put forward higher requirements to ride comfort. But the research stay in a aspect of vibration, it can’t satisfy requirements of passengers, riding comfort should be evaluated synthetically and quantitatively and other measurable factors should be evaluated. According to the method of simulation experiment, the riding comfort of other measurable factor can be evaluated by controlling the change amount of this factor. Then synthesis riding comfort can be calculated by the weighted method.The article focuses on synthesis riding comfort of high-speed train, the main works are as follows:The weight determination is an important method of comprehensive system analysis. According to the main factor influencing riding comfort, traditional method to establish weight exist many shortcomings and limitations. In this paper, hybrid methods of the analytic hierarchy process and the Delphi method are used to establish the weight of influencing factor.There is no standard for riding comfort except vibration factor. According to the question concerned by passengers and the condition which passenger may occur in high-speed train, simulation experiments are designed. In these experiments, independent variable of these influencing factor is controlled to conduct simulation experiment. After these experiments, questionnaires are obtained to support the next analysis.Questionnaires are screened, invalid questionnaires are eliminated. According to the least square method, the optimal parameters and the optimal curve fitting are obtained, then suggested riding comfort standard including noise, pressure, temperature, humidity and illuminance are formulated.The synthesis comfort model of high-speed train is established with the weighted method and the model is verified by data collected from high-speed train. The result shows that synthesis comfort model of high-speed train can reveal the change of comfort.