A Study on Numerical Solution Method for Efficient Dynamic Analysis of Constrained Multibody Systems

2005 ◽  
Author(s):  
Jae-Hwan Lim ◽  
Hong Jae Yim ◽  
Jung Hun Park ◽  
Tae-Won Park ◽  
Minseok Kang ◽  
...  
Keyword(s):  
Parallel Processing ◽  
Numerical Solution ◽  
Multibody Systems ◽  
Solution Method ◽  
Computational Method ◽  
Numerical Accuracy ◽  
Numerical Solution Method ◽  
Constrained Multibody Systems ◽  
Time Simulation ◽  
Local Parametrization

An efficient computational method for the constrained multibody systems is proposed. In the proposed method, local parametrization method is employed to apply the same solution method for position, velocity, and acceleration analyses since the coefficient matrices for each analysis have an identical matrix pattern. The skyline solution method is used to overcome numerical inefficiency when solving large scaled equations. Subsystem partitioning method is derived systematically to perform parallel processing for the real time simulation. To show the numerical accuracy and efficiency of the proposed method, three numerical problems are solved.

Numerical Solution Method Improvements for RETRAN

1983 ◽  
Vol 61 (2) ◽  
pp. 167-180 ◽  
Author(s):  
E. D. Hughes ◽  
K. R. Katsma
Keyword(s):  
Numerical Solution ◽  
Solution Method ◽  
Numerical Solution Method

The Equation of the Limit Replacement Width of Non-Newton Fluid in Eccentric Annulus

2013 ◽  
Vol 807-809 ◽  
pp. 2616-2619
Author(s):  
Yin Qing Liu ◽  
Mei Wei Wang ◽  
Hai Qing Cui
Keyword(s):  
Numerical Solution ◽  
Rheological Properties ◽  
Power Law ◽  
Solution Method ◽  
Cement Slurry ◽  
Power Law Fluid ◽  
Two Phase ◽  
Numerical Solution Method ◽  
Eccentric Annulus ◽  
The One

The equation of the limit replacement width of the one-dimension two-phase flow of Bingham fluid replacing Power law fluid in eccentric annulus was established, the numerical solution method of the equation mentioned above was given and taking the 3 wells, such as the He 104-27 well etc for examples, the limit replacement widths of cement slurry displacing mud, whose rheological properties can be described as Bingham and Power law modles respectively, were calculated, by using the equation and the numerical solution method mentioned above, and compared with those of cement slurry displacing mud, whose rheological properties are all described as Binghanm modle.

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