【摘要】 通过对表孔弧形闸门的有限元计算分析,保留了最能反映结构低阶振型的梁结构,把板结构转化为附加质量作用到有关梁上,从而建立了三维简化模型。并利用三维有限元方法计算的结构动力特性与简化结构动力特性相等的原则修正弧形闸门简化力学模型,确定了等效的弧形闸门三维简化结构模型和系统参数。提出了在闸门的横向支臂处添加粘滞阻尼器的方案,通过计算可知:闸门添加粘滞阻尼器后,在不同开度下的横向振动响应都大大降低了。更多还原

【Abstract】 Based on table hole dynamic-instability of finite element analysis,retained most can reflect structure low order modes of beam structure,the board structure into additional mass action to relevant beams,so as to establish a 3D simplified.And by using 3D finite element method to calculate the dynamic characteristics of the structure and simplify structure dynamic characteristics of equal principle correction dynamic-instability simplified mechanical model and determining the equivalent of the dynamic-instability 3D simplified structure model and system parameters.The author of the paper in the gate of lateral arms added between viscous dampers,through calculation,it is known that: gate add viscous dampers after opening,in different under the transverse vibration response are greatly reduced.更多还原