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Vibration and noise radiation characteristics analysis of wheel of railway carriage

Ling Yue

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Abstract

In railway carriages, the wheels are the important components radiating noise. Wheels will vibrate excited by the wheel/rail surface roughness and produce noise emission when carriages runs. FEM of the wheel is built by ABAQUS, and the natural frequency and vibration modes of the wheel of 0-10000Hz are calculated. A normal unit force is applied on the nominal contact point to analyze the frequency response function of the wheel using modal superposition method. The result of the frequency response function, is taken as boundary condition to analyze the sound radiation characteristics through the direct boundary element method(DBEM).

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What this paper is about

In railway carriages, the wheels are the important components radiating noise. Wheels will vibrate excited by the wheel/rail surface roughness and produce noise emission when carriages runs. FEM of the wheel is built by ABAQUS, and the natural frequency and vibration modes of the wheel of 0-10000Hz are calculated. A normal unit force is applied on the nominal contact point to analyze the frequency response function of the wheel using modal superposition method. The result of the frequency response function, is taken as boundary condition to analyze the sound radiation characteristics through the direct boundary element method(DBEM).

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Available abstract

In railway carriages, the wheels are the important components radiating noise. Wheels will vibrate excited by the wheel/rail surface roughness and produce noise emission when carriages runs. FEM of the wheel is built by ABAQUS, and the natural frequency and vibration modes of the wheel of 0-10000Hz are calculated. A normal unit force is applied on the nominal contact point to analyze the frequency response function of the wheel using modal superposition method. The result of the frequency response function, is taken as boundary condition to analyze the sound radiation characteristics through the direct boundary element method(DBEM).

Key concepts: Vibration, Structural engineering, Noise (video), Superposition principle, Acoustics, Engineering, Natural frequency, Modal analysis

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