底部砰击 meaning in English
bottoming
Examples
- The main problem in slamming research is to seek the relations among press , ship type and speed
底部砰击研究中最基本的问题之一是寻求压力、船型及速度三者之间的关系。 - Bow bottom slamming of ship is one of the physical phenomena , which often appears during heavy sea conditions
船首底部砰击是船舶在严重海况中航行时经常发生的一种物理现象。 - Since kamen and vagena , many researchers have discussed it in theory and experiment method . the main content in this paper is to set forth the slamming press calculations in dnv rules , gl rules and lr rules and the requirements for slamming strengthened bow structure and some comparisons ; slamming strengthened bow structure design for a bulk is carried out using dnv rules , and comparisons among several design schemes is carried through when heavy loading draft status replaces light loading draft status in practice . the results from above have been applied in ship production ; it is significant for ship structure improvement latter to calculate slamming press with direct calculation method , and then to design bow structure with dnv rules
本文的主要内容是分别阐述dnv 、 gl 、 lr三种规范对底部砰击压力计算及底部砰击加强结构设计的一般要求并进行一些分析比较：用dnv规范对某型船( 27000t散货船)进行具体的底部砰击加强结构设计，并就实际生产中产生的重载吃水状态改轻载吃水状态而出现的几种设计方案进行比较，其具体结果现已用于实际生产；用直接计算法确定砰击压力，再用dnv规范进行底部结构设计，对于后续船的改进均有指导意义。 - Based on the above work , the calculation formulae of nominal slamming pressure and the bearing capability of the bottom plates in the rules are modified , and the safety coefficients are evaluated referring to the target reliability specification , then the more reasonable formula of assessing the slamming strength of bottom of the bow is given
在上述工作的基础上，对我国建造规范中原有的砰击压力名义值和底板承载能力名义值的计算公式进行了修正，并参照选定的目标可靠性指标求出了安全系数，给出了更为科学合理的船首底部砰击强度定值评定公式。