Kuan-Fang H

Kuan-Fang H
College of Mechanical and Electrical Engineering,
Xiantan 411201
Indiana

Publications
  • Research Article
    Arc Energy Characteristics Analysis of AC Square Wave Submerged Arc Welding using WVD
    Author(s): Si-Wen X, Wang C, Zhi-Peng Z and Kuan-Fang HSi-Wen X, Wang C, Zhi-Peng Z and Kuan-Fang H

    In process of AC square wave submerged arc welding, electric signal waveform determines the arc energy characteristics in the time and frequency domain, which also reflects the arc stability of welding process and quality indirectly. Using Wigner-Ville distribution (WVD), time frequency analysis is conducted to the current signal of AC square wave submerged arc welding. The Pseudo Wigner-Ville and smoothed Wigner-Ville distribution are discussed separately to suppress the cross-term interference. The numerical results indicate that the Choi-Williams kernel function has much superiority for time frequency analysis of the submerged arc welding electric signal. It can effectively suppress cross-term and eliminate noise in the Wigner-Ville distribution of welding electric signal, as well as owing the ability to portray the local feature of arc energy in AC square wave submerged arc weldin.. View More»
    DOI: 10.4172/2168-9873.1000204

    Abstract PDF