车铣加工中心刀塔结构的动力学建模
摘要: 由于车铣加工中心刀塔结构的复杂性和多结合面性 , 本文将其分解为四个子系统 , 结合面用等效弹簧和等效阻尼代替 , 利用一个柔性结合点可以用二个刚性结合点和一个子结构替换的原理 , 并运用机械阻抗凝聚法和子结构综合法建立了刀塔结构的动力学模型。
关键词: 加工中心; 刀塔; 结合面; 子结构综合法
(Dep t1ofMechan - electr onic Engineering, Lanzhou Univ1of Tech1, Lanzhou 730050, China)
Abstract: For the comp lexity and multi p le j oint surface of the knife t ower structure, its structure was divided int o four subsystems, j oint surface was rep laced by the state of combining with the equivalent sp ring and equivalent damp ing, a dynamicsmodelwas set up t o utilize the p rinci p le that one flexibilities j oint - point can be rep laced by a subsystemswhose power of characteristics equivalent the j oint - surface’ s dynamic characteristics combining with t wo rigidity j oint - points, and t o use the law of mechanical i mpedance condensati on and the law of sub - structure comp rehensiveness1
Keywords: Machining center ; Knife t ower ; Joint ; The law of sub - structure comp rehensiveness
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