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Improved DDA Method Based on Explicitly Solving Contact Constraints
Joint Authors
Xiao, Ming
Zhao, Jian
Chen, Juntao
Li, Dongdong
Source
Mathematical Problems in Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-10-17
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
This paper proposes an improved DDA method based on explicitly solving contact constraints.
The potential energy function generated by contacting, which contains only displacement variables as an unknown, is deduced based on the approximated step function and Lagrange interpolation, and the displacement variables and contact constraints are obtained via the variable metric method by analyzing the potential energy extremum.
There is no need to conduct the open-close iteration during the process of calculation.
The improved DDA method based on explicitly solving contact constraints has high precision and a more stable and more robust computational convergence.
The accuracy and iterative stability of the improved DDA method are verified using two numerical examples.
American Psychological Association (APA)
Zhao, Jian& Xiao, Ming& Chen, Juntao& Li, Dongdong. 2016. Improved DDA Method Based on Explicitly Solving Contact Constraints. Mathematical Problems in Engineering،Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1112867
Modern Language Association (MLA)
Zhao, Jian…[et al.]. Improved DDA Method Based on Explicitly Solving Contact Constraints. Mathematical Problems in Engineering No. 2016 (2016), pp.1-13.
https://search.emarefa.net/detail/BIM-1112867
American Medical Association (AMA)
Zhao, Jian& Xiao, Ming& Chen, Juntao& Li, Dongdong. Improved DDA Method Based on Explicitly Solving Contact Constraints. Mathematical Problems in Engineering. 2016. Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1112867
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1112867