链式海底地震仪节点结构设计与试验  

Structural design and experiments of cabledocean-bottom seismometer nodes

作　　者：张川[1,2] 周建平 阮爱国 翁利春 段磊 曾锦锋[5] 陈宁特 ZHANG Chuan;ZHOU Jianping;RUAN Aiguo;WENG Lichun;DUAN Lei;ZENG Jinfeng;CHEN Ningte(School of Oceanography,Shanghai Jiaotong University,Shanghai 200030,China;Second Institute of Oceanography,Ministry of Natural Resources,Hangzhou 310012,Zhejiang,China;Marine Intelligent Observation Technology Innovation Center,Ministry of Natural Resource,Hangzhou 310012,Zhejiang,China;Jiangsu Far Reaching Marine Information Technology and Equipment Innovation Center,Changzhou 213001,Jiangsu,China;Hangzhou Hanlu Ocean Technology Co.,Ltd,Hangzhou 311200,Zhejiang,China;School of Naval Architecture,Ocean&Civil Engineering,Shanghai Jiaotong University,Shanghai 200240,China)

机构地区：[1]上海交通大学海洋学院,上海200030 [2]自然资源部第二海洋研究所,浙江杭州310012 [3]自然资源部海洋智能观测技术创新中心,浙江杭州310012 [4]江苏深远海洋信息技术与装备创新中心,江苏常州213001 [5]杭州瀚陆海洋科技有限公司,浙江杭州311200 [6]上海交通大学船建学院,上海200240

出　　处：《地震工程学报》2024年第3期672-679,共8页China Earthquake Engineering Journal

基　　金：上海交通大学“深蓝计划”基金(SL2020ZD205);自然资源部第二海洋研究所基本科研业务费专项资金(SL2020ZD205);国家自然科学基金(42127807,42076047);浙江省重点研发计划(2021C03016)。

摘　　要：海底地震仪是一种重要的海洋地震观测设备。针对中国近岸浅海洋流噪声大和人类活动频繁的特点,提出链式地震观测方式并对链式海底地震仪节点进行机械结构设计。首先根据内部构件尺寸与布局对地震仪节点整体结构进行设计;然后通过理论计算与有限元仿真方式确定地震仪节点仓体的壳体厚度、端盖厚度和密封尺寸;最后通过压力试验验证所设计的地震仪节点结构的耐压和水密性能符合要求,通过地震观测对比试验验证其接收天然地震的能力。此链式海底地震仪未来将应用于浙江近海的实际地震观测,提供实时连续的地震观测数据。Ocean-bottom seismometers represent crucial marine seismic observation instruments.Considering the loud ocean currents and frequent human activities in China's offshore shallow waters,we proposed a chain seismic observation method and designed the mechanical structure of a cabled ocean-bottom seismometer node.First,the overall structure of the seismometer node was designed based on the dimensions and layouts of its internal components.Subsequently,the hull thickness,end cover thickness,and sealing dimension were determined based on theoretical calculations and finite element simulations.Finally,a pressure test verified the pressure resistance and water tightness of the designed seismometer node structure,while a comparative seismic observation test validated the structure's ability to detect natural earthquakes.Considering these accomplishments,the designed cabled ocean-bottom seismometer is planned to be deployed for actual seismic observations in the offshore area of the Zhejiang Province to gather real-time and continuous seismic observation data.

关 键 词：链式地震仪 结构设计 仿真计算 压力试验 地震试验 

分 类 号：P755.2[天文地球—海洋科学]