@inproceedings{e0285a52e9e84fdc84d7363f5a5b26b4,
title = "Multibody dynamics method for immersed tunnel subjected to longitudinal seismic loading",
abstract = "The longitudinal dynamic response analysis of immersed tunnel is crucial for seismic design of immersed tunnel. The modeling theory and numerical method of multibody dynamics are introduced to the dynamic response analysis of immersed tunnel. An immersed tunnel can be considered as a multibody system which is composed of a series of reinforced concrete segments connected with flexible joints. In this paper, a chain dynamic model of multibody system, i.e. a multi-rigid body, elastic damping hinge, and damping hinge model, is developed for dynamic analysis of immersed tunnel under longitudinal seismic excitations. The mathematical model is implemented to solve the dynamic response of the system. The dynamic equations of each element and the system are deduced using discrete time transfer matrix method in multibody dynamics (MS-DT-TMM). As an application, an example is conducted with the presented dynamic model and mathematical model. The solutions are acquired using Matlab. Results obtained from MS-DT-TMM are in a good agreement with the traditional finite element method (FEM). Results show that the dynamic and mathematical models of mutltibody system are suitable for aseismic design of immersed tunnel. The multibody dynamic modeling process for immersed tunnel under earthquake is simple and flexible. This research provides a powerful tool for seismic response analysis of immersed tunnel, especially for those ultra-long immersed tunnel located in seismically active regions.",
keywords = "Discrete time transfer matrix method, Immersed tunn, Multibody dynamics, Seismic response",
author = "Zhongyuan Shen and Yong Yuan and Haitao Yu and Rui Chai",
year = "2014",
month = jul,
day = "1",
language = "English",
series = "11th World Congress on Computational Mechanics, WCCM 2014, 5th European Conference on Computational Mechanics, ECCM 2014 and 6th European Conference on Computational Fluid Dynamics, ECFD 2014",
publisher = "International Center for Numerical Methods in Engineering",
pages = "3136--3147",
editor = "Eugenio Onate and Xavier Oliver and Antonio Huerta",
booktitle = "11th World Congress on Computational Mechanics, WCCM 2014, 5th European Conference on Computational Mechanics, ECCM 2014 and 6th European Conference on Computational Fluid Dynamics, ECFD 2014",
note = "Joint 11th World Congress on Computational Mechanics, WCCM 2014, the 5th European Conference on Computational Mechanics, ECCM 2014 and the 6th European Conference on Computational Fluid Dynamics, ECFD 2014 ; Conference date: 20-07-2014 Through 25-07-2014",
}