METHOD FOR REALIZING VIBRATION AND NOISE SIMULATION LOAD OF VEHICLE DEPOT
Disclosed in the present invention is a method for realizing a vibration and noise simulation load of a vehicle depot. The method comprises the following steps: obtaining an actually-measured value of the acceleration of a steel rail and an actually-measured value of the acceleration of a propagatio...
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Format: | Patent |
Sprache: | chi ; eng ; fre |
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Zusammenfassung: | Disclosed in the present invention is a method for realizing a vibration and noise simulation load of a vehicle depot. The method comprises the following steps: obtaining an actually-measured value of the acceleration of a steel rail and an actually-measured value of the acceleration of a propagation path; expanding the actually-measured value of the acceleration of the steel rail into an infinite series composed of a multiple-frequency sine function and cosine function to obtain a preprocessed acceleration of the steel rail; establishing motion equilibrium equations of a vehicle body and a suspension system; solving the motion equilibrium equations, and using D'Alembert's principle to transform the motion equilibrium equations into static equilibrium equations, and calculating a bogie load; substituting train-related parameters into a bogie load expression, and correcting a bogie vibration load to obtain a uniformly distributed load, which is uniformly distributed in a longitudinal direction of the rail; and |
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