A gap element to connect soil and the gun is proposed 提出了一種間隙單元將土壤和駐鋤有限元模型連接起來。
An application of gap element to the transient dynamics analysis of drillstring 間隙元在鉆柱瞬態(tài)動力學分析中的應用
Using gap elements to simulate the practical worki n g situation of a piston , a new finite element contact model is proposed both th e stress and deformation of the piston and the pressure distribution between the p iston and the pin are obtained the contact area and the pressure distribution v ary with the stiffness of the pin and the clearance between the piston and the p in 該文使用間隙元模擬活塞的實際工作狀態(tài),提出活塞的有限元接觸模型,不僅可以得到活塞的應力和變形,還可以計算出活塞與活塞銷之間的壓力分布以及銷的剛度、銷與銷座的間隙變化對接觸區(qū)域的大小和壓力分布的影響
The gap element method is proposed in the paper for two kinds of problems , which include contact problem and gap joint problem . elasticity contact problem falls into the category of unknown boundary value problems . it follows that the contact area and contact conditions or states ( st 文中給出了間隙元法在空間可動部件接觸問題中的應用,推導了其幾何邊界條件和力學邊界條件,利用虛功原理推導了含間隙元彈性接觸問題的有限元方程式,給出了其數值解法的迭代步驟,并指出了利用間隙單元進行分析的特點。
Abstract : using gap elements to simulate the practical worki n g situation of a piston , a new finite element contact model is proposed both th e stress and deformation of the piston and the pressure distribution between the p iston and the pin are obtained the contact area and the pressure distribution v ary with the stiffness of the pin and the clearance between the piston and the p in 文摘:該文使用間隙元模擬活塞的實際工作狀態(tài),提出活塞的有限元接觸模型,不僅可以得到活塞的應力和變形,還可以計算出活塞與活塞銷之間的壓力分布以及銷的剛度、銷與銷座的間隙變化對接觸區(qū)域的大小和壓力分布的影響