A MULTISCALE COMPUTATIONAL METHOD FOR 2D ELASTOPLASTIC DYNAMIC ANALYSIS OF HETEROGENEOUS MATERIALS

2014 ◽  
Vol 12 (2) ◽  
pp. 127-154
Author(s):  
Hongwu Zhang ◽  
Hui Liu
Keyword(s):  
Dynamic Analysis ◽  
Heterogeneous Materials ◽  
Computational Method

MULTI-LEVEL K-d TREE-BASED DATA-DRIVEN COMPUTATIONAL METHOD FOR THE DYNAMIC ANALYSIS OF MULTI-MATERIAL STRUCTURES

2020 ◽  
Vol 18 (4) ◽  
pp. 421-438
Author(s):  
Zhangcheng Zheng ◽  
Hongfei Ye ◽  
Hongwu Zhang ◽  
Yonggang Zheng ◽  
Zhen Chen
Keyword(s):  
Dynamic Analysis ◽  
Computational Method ◽  
Data Driven ◽  
Multi Level

Dynamic Analysis of Rotary Drillstring in Horizontal Well Based on the Fluid-Structure Interaction

2013 ◽  
Vol 385-386 ◽  
pp. 146-149
Author(s):  
Min Luo ◽  
Ting Ting Xu ◽  
Ting Ting Zhao ◽  
Wen Xin Zhao ◽  
Ju Bao Liu
Keyword(s):  
Dynamic Analysis ◽  
Horizontal Well ◽  
Fluid Structure Interaction ◽  
Three Dimensional ◽  
Momentum Equation ◽  
Computational Method ◽  
Fluid Equation ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Fluidstructure Interaction

With the development of drilling technology, rotary drillstring not only produces random multi-directional collisions with the inner wall of pipe, also couples with the inner and outer annular fluids. This results in a complex system of nonlinear fluid-structure interaction. In the paper, structure and mode of operation about rotary drillstring are considered, the equations of the structure dynamics, fluid equation of continuity and momentum equation are coupled. The three-dimensional numerical model and computational method is established about the fluidstructure interaction dynamic analysis of rotary drillstring. Take the rotary drillstring and inner and outer fluids as a research object, dynamic analysis of the rotary drillstring is finished, considering the fluid-structure coupled characteristics and compare the air medium, the results show the effect of fluidstructure interaction. It can provide the feasible method for the study of the string in the oil drilling and production engineering and conduct the development of drillstring dynamics in horizontal well drilling engineering.

scholarly journals A Computational Method for Dynamic Analysis of Deployable Structures

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Ying Wang ◽  
Bin Sun
Keyword(s):  
Dynamic Analysis ◽  
Multibody System ◽  
Computational Method ◽  
Elastic Displacement ◽  
Deployable Structures ◽  
Joint Structure ◽  
Motion Process ◽  
Simulation Results ◽  
Damping Theory

A computational method is developed to study the dynamics of lightweight deployable structures during the motion process without regard to damping. Theory and implementation strategy of the developed method are given in this study. As a case study, the motion process of a bar-joint structure and a ring array scissor-type structure was simulated under external dynamic loading. In order to verify the effectiveness of the method, the simulation results are compared with the results predicted by the authenticated multibody system dynamics and simulation program. It shows that the method is effective to dynamic analysis of deployable structures no matter the structures are rigid or elastic. Displacement, velocity, and acceleration for the entire deployable structures during the motion process can be computed, as well as strain if the deployable structure is elastic.

Dynamic analysis of a copper alloy model cage affected by the current and wave

2015 ◽  
Vol 8 (1) ◽  
pp. 32
Author(s):  
Sun-Haw Kim ◽  
Sun-In Jung ◽  
Ji-Hoon Lee
Keyword(s):  
Dynamic Analysis ◽  
Copper Alloy

Dynamic Analysis Method for Electromagnetic Artificial Muscle Actuator under PID Control

2011 ◽  
Vol 131 (2) ◽  
pp. 166-170 ◽  
Author(s):  
Yoshihiro Nakata ◽  
Hiroshi Ishiguro ◽  
Katsuhiro Hirata
Keyword(s):  
Dynamic Analysis ◽  
Pid Control ◽  
Artificial Muscle ◽  
Analysis Method
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