噪声与振动控制2017，Vol.37Issue(4)：115-120,6.DOI:10.3969/j.issn.1006-1355.2017.04.023
舰船冲击谱若干计算方法比较研究
Comparative Study on Several Calculation Methods for Ship's Shock Spectra
摘要
Abstract
The shock spectrum is usually used to assess impact resistant performance of the equipment under underwater explosion. But, there are several computation methods currently and different algorithms for the shock spectra will lead to quite different calculation results. In this paper, based on different calculation methods, such as direct integration, recursive method, cubic spline method and recursive filtering method, the shock spectra of the filtered signals are solved. The conditions, precision and efficiency of the different calculation methods are analyzed by changing the sampling frequency and sampling precision. The results show that the recursive method and recursive filtering method are more efficient and stable than the other methods in the case of the same sampling precision and are suitable for practical engineering application.关键词
振动与波/冲击谱/直接积分法/递归法/三次样条法/递归滤波法Key words
vibration and wave/shock spectrum/direct integration/recursive method/cubic spline/recursive filtering method分类
数理科学引用本文复制引用
谢浩,冯麟涵,吴静波,李晓文,郭君..舰船冲击谱若干计算方法比较研究[J].噪声与振动控制,2017,37(4):115-120,6.基金项目
工信部高技术船舶资助项目 （）
黑龙江省博士后科研启动基金资助项目(LBH-Q16054) （LBH-Q16054）
