Open AccessComparative analysis of accuracy and efficiency of different contact algorithms
Author(s) -
Hong Zhang,
Binghan Xue,
Hongyuan Fang,
Jianguo Chen,
Xiang Yu,
Mingrui Du
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/643/1/012153
Subject(s) - convergence (economics) , algorithm , variety (cybernetics) , computer science , contact analysis , basis (linear algebra) , mathematical optimization , mathematics , finite element method , engineering , structural engineering , artificial intelligence , geometry , economics , economic growth
In order to solve contact problems, ANSYS provides a variety of contact algorithms. However, there is no basis for how to select the contact algorithm when solving the contact problem in hydraulic structure engineering. Therefore, this paper introduces the basic concepts of contact algorithms briefly, such as penalty method, lagrange method, augmented lagrange method and L&P method, which are commonly used in ANSYS. Then, different examples are used to compare the four contact algorithms in terms of accuracy, convergence and efficiency. Finally, considering the accuracy, convergence and efficiency, it is suggested to adopt L&P method in hydraulic structure contact analysis.