The expansion of the metal tube is always used as energy absorber.In this study,a new theoretical model of the expan......

建立了一种基于弹簧自适应控制油孔面积的双气腔双油腔缓冲器动力学模型和分析方法,同时也建立了一种三维摇臂式起落架着陆动力学......