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  1. frequency–amplitude formulation with average residuals

    Article • Journal of Low Frequency Noise Vibration and Active Control, June 2019, SAGE Publications

    Zhong-FU Ren

  2. Ren’s frequency–amplitude formulation for nonlinear oscillators

    Article • Journal of Low Frequency Noise Vibration and Active Control, November 2018, SAGE Publications

    Gui-Fang Hu, Zhong-FU Ren

  3. The calculation of the residuals can be further simplified without loss of accuracy.

    Article • Journal of Low Frequency Noise Vibration and Active Control, November 2018, SAGE Publications

    Gui-Fang Hu, Zhong-FU Ren