摘要
水下航行体在出水过程中,由于表面空泡发生溃灭,会引起结构的瞬态响应。结构动响应的大小与航行体所受流体外力直接相关,而空泡形态、航行体姿态、发射条件等都会影响航行体周围流场,使航行体所受流体动力十分复杂。本文从统计的角度出发,采用方差分析的办法,对航行体出水过程动响应影响因素进行了敏感性分析,并通过不同工况下模型试验数据,对出水速度、波浪、空泡溃灭速度、攻角等因素进行了统计分析。
In the motion of exiting water, the cavity on the underwater vehicle＇s surface collapses, which results in the transient response of the structure. Such a dynamic response is directly related to the fluid forces which are influenced by the cavity shape, the attitude and the launch condition etc. As a result, the fluid forces are very complicated. A sensitivity analysis of the factors influencing the dynamic response in the motion of exiting water is conducted with ANOVA in this paper. Based on the experimental data, the sensitivity of the factors such as the motion velocity, the wave, the velocity of the cavity collapse and the attack angle is analyzed statistically.
出处
《强度与环境》
2008年第6期1-5,共5页
Structure & Environment Engineering
关键词
方差分析
动响应
空泡溃灭
Analysis of Variance （ANOVA）
dynamic response
cavity collapse
