Dynamic Responses of Supercavitating Vehicles under Non-stationary Random Excitation

摘要：

　　When the front end of the supercavitating vehicles subjects to very large axial non-stationary random excitation at high speed motion under water,it is necessary to analyze dynamic responses of supercavitating vehicles under non-stationary random excitation.The dynamical equation of supercavitating vehicles is transformed into the form of state equations.The Simpson integration method is going to calculate the integral term of the general solution of state equation to improve the precise integration method.The explicit expression of dynamic responses of supercavitating vehicles is deduced,the means and variances of structural responses are calculated with operation laws of the first moment and second moment.Under different sailing speeds and different cone-cavitator angles dynamic responses of supercavitating vehicles are given by the examples,and the effectiveness of the method was demonstrated.

关键词： Supercavitating vehicles Non-stationary random excitation Simpson integration method Precise integration method Dynamic responses

作者: Xiang Hua Song Guang Ping Zou Wei Guang An

作者单位: College of Aerospace and Civil Engineering,Harbin Engineering University,Harbin 150001,Heilongjiang,China

会议类型: 国际会议

会议名称: the 2012 International Conference on Manufacturing Engineering and Automation (2012年制造工程与自动化国际会议(ICMEA2012))

会议地点: 广州

会议语种:英文

页码: 1934-1937

在线出版日期: 2012-11-16（万方平台首次上网日期，不代表论文的发表时间）