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Lankarani H M, Nikravesh P E. Continuous contact force models for impact analysis in multibody systems [J]. Nonlinear Dynamics, 1994, 5:193-207. 閻紹澤賈書(shū)惠.;含間隙的變拓?fù)涠囿w系統(tǒng)動(dòng)力學(xué)建模分析[J]