自由落体状态下二维结构物砰击载荷计算

孙哲, 眭旭鹏, KOROBKIN Alexander, 邓彦增, 张桂勇, 宗智, 姜宜辰

Dynamic Characteristics of Two-Dimensional Structures Slamming Under Free Fall Condition

SUN Zhe, SUI Xupeng, KOROBKIN Alexander, DENG Yanzeng, ZHANG Guiyong, ZONG Zhi, JIANG Yichen

表1 不同理论模型下的砰击力系数

Tab.1 Slamming force coefficients for different analytical models

模型	a_v₁	a_v2	a_a1	a_a2
OWM	π $\overset{\cdot}{c}$ c	0	$\frac{π c^{2}}{2}$	0
WN	2 $\overset{\cdot}{c}$ carcsin $\frac{c^{*}}{c}$	- $\frac{c^{2} I_{4}}{2}$	$\frac{π}{2}$ c²	0
OLM	2 $\overset{\cdot}{c}$ carcsin $\frac{c^{*}}{c}$	- $\frac{c^{2} I_{4}}{2}$	$\frac{π}{2}$ c²	-2c
MLM	2 $\overset{\cdot}{c}$ carcsin $\frac{c^{*}}{c}$	- $\frac{c^{2} I_{1} + I_{2}}{2}$	I₃+ $\frac{π}{2}$ c²	-2c
GWM	2 $\overset{\cdot}{c}$ carcsin $\frac{c^{}}{c}$ -2c^f_y(c) $\overset{\cdot}{c}$	- $\frac{c^{2} I_{1} + I_{2}}{2}$ +2c^*	I₃+ $\frac{π}{2}$ c²-c^*f(c)	0