[1]谢浩,郭君,王强龙,等.基于谱跌现象的舰船设计谱影响因素分析[J].应用科技,2020,47(2):12-16.[doi:10.11991/yykj.201906006]
 XIE Hao,GUO Jun,WANG Qianglong,et al.Analysis of warship design spectrum influencing factors based on the spectrum drop phenomenon[J].Applied science and technology,2020,47(2):12-16.[doi:10.11991/yykj.201906006]
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基于谱跌现象的舰船设计谱影响因素分析(/HTML)
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《应用科技》[ISSN:1009-671X/CN:23-1191/U]

卷:
第47卷
期数:
2020年2期
页码:
12-16
栏目:
船舶与海洋工程
出版日期:
2020-03-05

文章信息/Info

Title:
Analysis of warship design spectrum influencing factors based on the spectrum drop phenomenon
作者:
谢浩1 郭君2 王强龙1 杨旭1
1. 武汉第二船舶设计研究所,湖北 武汉 430064;
2. 哈尔滨工程大学 船舶工程学院,黑龙江 哈尔滨 150001
Author(s):
XIE Hao1 GUO Jun2 WANG Qianglong1 YANG Xu1
1. Wuhan Second Ship Design and Research Institute, Wuhan 430064, China;
2. College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
关键词:
设计谱机械阻抗法谱跌声固耦合法冲击环境谱速度谱加速度谱位移
Keywords:
design spectrummechanical impedance methodspectrum dipacoustic-solid coupling methodshock environmentspectrum velocityspectrum accelerationspectrum displacement
分类号:
TB535.1
DOI:
10.11991/yykj.201906006
文献标志码:
A
摘要:
目前舰船设备的设计谱谱值主要参照国外的军用标准,由于缺乏对标准制定原理的足够认识,导致设备的设计谱值未能与我国现阶段的抗冲击要求一致。针对现行的设计谱方法,首先通过多自由度系统的理论计算,并结合机械阻抗法介绍了设计谱中的谱跌现象;然后将简化设备安装于实际的舰船结构上,运用声固耦合法计算其水下爆炸下的冲击环境。通过实验得到在其他参数不变的情况下,设备的设计谱速度与质量、安装频率成反相关性,与理论推导规律一致,设计谱的确定必须充分考虑设备安装位置与设备自身特性的影响。
Abstract:
At present, the design spectrum value of equipment is mainly derived from foreign military standards, due to the lack of sufficient understanding of the principle of standard setting, which results in that the design spectrum value of equipment can not meet the requirements of shock resistance in our country at the present stage. In view of the current design spectrum method, by combination with the theoretical calculation of multi-degree-of-freedom system, the spectrum dip phenomenon in the design spectrum based on the mechanical impedance method is introduced in this paper. Then, the simplified equipment is installed on the actual ship structure, and the acoustic-solid coupling method is used to calculate the shock environment under the underwater explosion impact. When other parameters are unchanged, the design spectral velocity of the equipment is inversely correlated with the mass and installation frequency, which is consistent with the law of theoretical deduction. Therefore, the influence of the installation location of the equipment and the characteristics of the equipment itself must be fully considered in the determination of the design spectrum.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-06-13。
作者简介:谢浩,男,助理工程师;郭君,男,副教授,博士
通讯作者:谢浩,E-mail:1278095428@qq.com
更新日期/Last Update: 2020-04-21