FINITE DIFFERENCE METHOD FOR SOLVING THE NONLINEAR DYNAMIC EQUATION OF UNDERWATER TOWED SYSTEM

Autor: Jin Liang'an, Hengdou Tian, Zhijiang Yuan, Wei Chi
Rok vydání: 2014
Předmět:
Zdroj: International Journal of Computational Methods. 11:1350060
ISSN: 1793-6969
0219-8762
DOI: 10.1142/s0219876213500606
Popis: A wide body of work exists that describes numerical solution for the nonlinear system of underwater towed system. Many researchers usually divide the tow cable with less number elements for the consideration of computational time. However, this type of installation affects the accuracy of the numerical solution. In this paper, a newly finite difference method for solving the nonlinear dynamic equations of the towed system is developed. The mathematical model of tow cable and towed body are both discretized to nonlinear algebraic equations by center finite difference method. A newly discipline for formulating the nonlinear equations and Jacobian matrix of towed system are proposed. We can solve the nonlinear dynamic equation of underwater towed system quickly by using this discipline, when the size of number elements is large.
Databáze: OpenAIRE