基于最大熵方法的水下航行体结构动力响应概率建模

周春晓, 汪锐琼, 聂肇坤, 李刚, 曾岩

PROBABILISTIC MODELLING OF DYNAMIC RESPONSE OF UNDERWATER VEHICLE STRUCTURE VIA MAXIMUM ENTROPY METHOD

Zhou Chunxiao, Wang Ruiqiong, Nie Zhaokun, Li Gang, Zeng Yan

表2 含非线性连接的梁最大内力响应前四阶矩

Table 2 The first four moments of the maximum internal force of the beam with nonlinear connections

$E(X^{1})$ $E(X^{2)}$ $E(X^{3)}$ $E(X^{4)}$ $F$/kN& 78.01 9.27 0.13 2.47 $t_{F}$/ms 100.63 23.37 2.17 5.88 $L_{F}$/m 7.27 0.21 -6.57 64.52 $M$/(kN$\cdot$m) 188.52 14.98 -0.16 2.80 $t_{M}$/ms 123.46 2.21 -0.37 2.99 $L_{M}$/m 7.20 0.32 1.03 6.71