The Finite Element Model of Discontinuous Rock Masses

2011 ◽  
Vol 243-249 ◽  
pp. 2948-2951 ◽  
Author(s):  
Heng Bin Wu ◽  
Ze Ping He
Keyword(s):  
Finite Element ◽  
Limit Equilibrium ◽  
Element Model ◽  
Discontinuous Deformation Analysis ◽  
Deformation Analysis ◽  
Sliding Surface ◽  
Discontinuous Deformation ◽  
Discontinuous Rock ◽  
Element Theory ◽  
The Finite Element Model

The traditional limit equilibrium theory could not consider the discontinuous property of rock slope, and the existing research methods for the discontinuous rock mass confined to the Discrete Element Method and Discontinuous Deformation Analysis. Based on the finite element theory, considering the strength reduction of the joint mechanical parameters, the slope stability with one or two sets joints are analyzed in this paper. The results show that, the sliding surface for one set joint slope is close to the joint dip, and the sliding surface for two sets joints slope is close to the control joint dip.

Statics Analysis of Integral Impeller Based on Finite Element

2013 ◽  
Vol 753-755 ◽  
pp. 1124-1127
Author(s):  
Li Da Zhu ◽  
Shuai Xu ◽  
Wen Wen Liu ◽  
Ji Jiang Wu ◽  
Jian Shi ◽  
...  
Keyword(s):  
Finite Element ◽  
Element Model ◽  
Stress And Strain ◽  
Total Deformation ◽  
Suction Surface ◽  
Maximum Deformation ◽  
Blade Tip ◽  
Tip Position ◽  
Element Theory ◽  
The Finite Element Model

Aim at the problem of machining integral impeller, a method of using finite element theory to carry out the statics analysis of impeller in this paper is studied. The finite element model is established, and then the nephogram of the impeller stress, strain and total deformation are obtained. The result is attained: in the case of impeller rotation and statics load, the maximum of stress and strain occur at the root of suction surface, the maximum of total deformation occurs on the blade tip position of suction surface, while the maximum deformation position has not changed, which increases with the increasing of rotation and statics load. The data results provide a theoretical reference for the machining of integral impeller.

Research on the Earthquake Dynamic Responses of Tunnel under Changing Tunnel Lining Rigidity

2011 ◽  
Vol 250-253 ◽  
pp. 1978-1982
Author(s):  
Xiao Ping Cao
Keyword(s):  
Finite Element ◽  
Dynamic Load ◽  
Element Model ◽  
Tunnel Lining ◽  
Dynamic Responses ◽  
Seismic Responses ◽  
Set Up ◽  
Deeply Buried Tunnel ◽  
Element Theory ◽  
The Finite Element Model

With the increasing of the quantity of the tunnel, more and more attentions have been paid to the tunnel destruction induced by earthquake. Based on the software of finite element, the finite element model for deeply buried tunnel have been set up; and the responses about different rigidity of tunnel lining under seismic dynamic load has been analyzed by using elastic finite element theory. The conclusions have been drawn that the change of seismic responses by increasing rigidity of tunnel lining is unobvious, and the method using increasing rigidity of tunnel lining to reduce the seismic responses of tunnel is uneconomical.

Modeling and Dynamic Simulation of Cable

2012 ◽  
Vol 256-259 ◽  
pp. 2863-2866
Author(s):  
Wen Lin Yang ◽  
Zhong Bin Wang ◽  
Bing Lei Yan
Keyword(s):  
Finite Element ◽  
Response Curve ◽  
Element Model ◽  
Cable System ◽  
Motion Response ◽  
Finite Element Equation ◽  
Runge Kutta Method ◽  
Tension Curve ◽  
Element Theory ◽  
The Finite Element Model

The cable between elevator and cage was used as the object of this study, we use the finite element theory to establish the finite element model of the cable system. Then the motion response curve between the elevator and cage and the tension curve of the cable was gotten from solving the finite element equation by using the Runge-Kutta method. We have studied the effect of the length of the cable on the motion response between elevator and cage.

Sign in / Sign up

Export Citation Format

Share Document