船舶装备复杂振动环境试验剖面分析方法及其应用  

Analysis Method and Application of Complex Vibration Environment Test Profiles for Marine Equipment

作　　者：丛子龙 孙嘉徽 高智敏 陈换过[1] 陈荣[1] CONG Zilong;SUN Jiahui;GAO Zhimin;CHEN Huanguo;CHEN Rong(Zhejiang Province Key Laboratory of Reliability Technology for Mechanical and Electrical Products,Zhejiang Sci-Tech University,Hangzhou 310018,China;Shanghai Marine Equipment Research Institute,Shanghai 200031,China;Hangzhou Hikvision Digital Technology Co.,Ltd.,Hangzhou 310052,China)

机构地区：[1]浙江理工大学浙江省机电产品可靠性技术研究重点实验室,杭州310018 [2]上海船舶设备研究所,上海200031 [3]杭州海康威视数字技术股份有限公司,杭州310052

出　　处：《船舶工程》2024年第8期86-92,116,共8页Ship Engineering

摘　　要：我国船舶装备因可靠性试验参考数据不全而导致环境适应性差,亟需获取全面的平台实测振动环境谱。针对船舶平台实测环境工况中既有随机振动,又有随机振动叠加周期分量的情况,提出一种复杂振动环境试验剖面分析方法。对实测上限谱进行窄带尖峰信号判别,来选择相应的归纳流程,计算得到振动试验谱,加入任务剖面合成振动试验剖面。其中,对于存在周期分量的振动实测上限谱,采用快速截取等效法进行窄带分量和宽带分量的快速分离和归纳。该方法可促进船舶装备全寿命平台环境应力剖面研究,为船舶装备的可靠性设计提供参考。Due to the lack of comprehensive reference data for reliability testing,shipboard equipment in China exhibits poor environmental adaptability.There is an urgent need to obtain comprehensive platform-measured vibration environment spectra.Addressing the complex vibrational conditions observed in shipboard platform environmental measurements,which involve both purely random vibrations and the superposition of periodic components,an analytical method is proposed for a complex vibration environment test profile.The method involves discriminating narrowband peak signals from the measured upper limit spectrum,selecting the corresponding induction process,calculating the vibration test spectrum,and incorporating it into the mission profile to synthesize the vibration test profile.For vibration upper limit spectra with periodic components,a fast equivalent method is used to efficiently separate and induce narrowband and wideband components.The method facilitates research on the entire life cycle platform environmental stress profiles of shipboard equipment,which can provide valuable insights for the reliability design of shipboard equipment.

关 键 词：船舶平台 振动 复杂环境 试验剖面 信号分离 

分 类 号：U661.44[交通运输工程—船舶及航道工程] TH113.1[交通运输工程—船舶与海洋工程]