2009•Noise and Vibration ControlRequires access

Study on Sound Radiation Efficiency of Vibration Modes of Railway Wheels

WU Tian-xing

Abstract

Two finite element models of a railway wheel are established.Due to the geometrical axisymmetry,only a quarter of the wheel is considered for each model.The vibration modes of the wheel for different nodal diameter number are computed.On this base,the boundary element method is employed to calculate the sound radiation efficiency of the vibration modes of the wheel in the frequency range of 50-6000Hz.The results show that the radiation efficiency of vibration modes is usually low at low frequencies and reaches one at high frequencies.The results from the two wheel models are consistent each other,and check with the theoretical solutions.

About this research paper

What this paper is about

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Vibration, Acoustics, Finite element method, Structural engineering, Engineering, Radiation, Boundary value problem, Range (aeronautics)