Transient Response Analysis of Underwater Structures Based on Total Field Formulas and Modified High-order Transmission Boundary-Reference-Cited by-同舟云学术

Transient Response Analysis of Underwater Structures Based on Total Field Formulas and Modified High-order Transmission Boundary

Published:2021-03-03 Issue:07 Volume:18 Page:
ISSN:0219-8762
Container-title:International Journal of Computational Methods
language:en
Short-container-title:Int. J. Comput. Methods

Author:

Zhao Zibin¹²,Li S. M.²³,Yin Yihui²³

Affiliation:

1. Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, P. R. China

2. Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang Sichuan 621999, P. R. China

3. Shock and Vibration of Engineering, Materials and Structure Key Laboratory of Sichuan Province, Mianyang Sichuan 621999, P. R. China

Abstract

The scaled boundary finite element method (SBFEM) has obvious advantages in simulating both finite and infinite domains. However, the present high-order transmission boundary of SBFEM has a problem in numerical stability, especially for 3D fluid–structure interaction (FSI) problems. In this paper, a modified method is put forward to improve the numerical stability of the high-order transmission boundary and the total field formulas of the modified high-order transmission boundary are derived. In the transient response analysis, the nonreflecting characteristics of the infinite fluid domain are simulated by the modified high-order transmission boundary, while the impacts loading is calculated by the total field formulas. Several numerical examples are presented to prove the validity of the modified high-order transmission boundary and the total field formulas.

Funder

National Natural Science Foundation of China

NSAF

Science and technology development fund of China Academy of Engineering Physics

Publisher

World Scientific Pub Co Pte Ltd

Subject

Computational Mathematics,Computer Science (miscellaneous)

Link

https://www.worldscientific.com/doi/pdf/10.1142/S021987622150016X

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