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Mathematical Problems in Engineering
Volume 2017 (2017), Article ID 3671618, 12 pages
https://doi.org/10.1155/2017/3671618
Research Article

Spatial Kinetics Model of Supercavitating Vehicles Reflecting Conic-Like Oscillation

School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China

Correspondence should be addressed to Daijin Li; nc.ude.upwn@nijiadil

Received 13 June 2017; Accepted 22 August 2017; Published 3 October 2017

Academic Editor: Jose J. Muñoz

Copyright © 2017 Chuang Huang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A spatial kinetics model for supercavitating vehicles including the coupled motion of pitch, yaw, and rolling was presented. Mathematical simulations were performed to investigate dynamic performance of supercavitating vehicles. An intrinsic conic-like oscillation in the motion of supercavitating vehicles was discovered. A lakebed experiment was carried out to validate the oscillation. Good agreement is achieved between simulation and experiment in terms of the amplitude and frequency of attitude angles. The steady phase difference between the motions in different planes is also accurately captured which is about . The conic-like oscillation is attributed to the occurrence of the tail-slap motion in the vertical and horizontal planes and the steady phase difference.