Computation of eigenvalues of acoustic-structural coupled vibration for underwater structures;
水下结构声固耦合振动的特征值计算
Using three-axis accelerometer ADXL330,a single monolithic IC,based on micro electromechanical systems(MEMS),an accelerator transducer for underwater structure was designed and applied to a vibration measurement system of long pipeline gates.
采用基于MEMS技术的ADXL330三轴加速度计芯片,设计了适合水下结构振动测试的加速度传感器,并应用于某输水管线闸门振动监测系统中。
The numerical calculation of underwater structure s acoustic radiated field has been carried out with the FEM and I-FEM.
结果表明,提出的在时域内进行水下结构声辐射的计算是切实可行的,为水下结构声辐射仿真研究提供了新的方法。
The new magnetic testing techniques for the underwater structure are introduced briefly, which including magnetic particale inspection, eddy current inspection, magnetic flux leakage, alternating current filed measurement, mangenetic memory technique, magfoil inspection technique, etc.
本文重点阐述了满足水下结构物检测要求的磁检测新技术,如磁粉检测技术、涡流检测技术、漏磁场检测技术、交流电磁场检测技术、磁记忆检测技术、Magfoils磁膜检测技术等。
This paper introduces the surveying principle of several instruments as side-scan sonar, sub—bottom profiler and magnetometers, and states their detecting method and process for the underwater objectives along Hong Kong-Zhuhai-Macao Bridge (HZMB)axis.
简要介绍了侧扫声纳、地层剖面仪和磁力仪的工作原理以及利用它们开展港珠澳大桥桥轴线水下结构物的探测方法和过程,并将探测的结果与调查收集的资料比较,分析水下结构物的分布情况,不同探测方法得出的结果也可以相互印证。
This paper introduces the detecting method and process of several instruments as side-scan sonar,sub-bottom profiler and magnetometers for the underwater objectives along Hong Kong-Zhuhai-Macao Bridge(HZMB).
介绍了利用侧扫声纳、浅地层剖面仪和磁力仪开展港珠澳大桥水下结构物的探测方法和过程,并将探测的结果与调查收集的资料比较,分析水下结构物的分布情况,不同探测方法得出的结果也可以相互印证。
Grout material for patching cracks of underwater concrete structure;
可用于水下混凝土结构裂缝修补的注浆材料
Application of FBG sensors in under-water structure project;
FBG传感器在水下结构工程中的应用
Technologies for Positioning and Placement of Underwater Structures; Final rept
水下结构的定位和放置技术/最终报告
Multi Methods to Detect the Underwater Objectives Along the Hong Kong-Zhuhai-Macao Bridge
港珠澳大桥水下结构物的多手段探测
Acoustic similarity is the base of scaled model tests of underwater structure noise.
声学相似性是水下结构噪声模型试验的基础。
Hydrated performance and microstructure of portland cement with low water cement ratio
低水灰比下硅酸盐水泥的水化性能和微观结构
Road、 Airport、 planthouse、 water pool、 gluing and repair for underground structure.
道路、梁、场、房、池、下水结构物的接著、补。
Structured Light Sensor and Underwater 3D Inspecting System
线结构光视觉传感器与水下三维探测
Structure and electronic spectrum for water molecule under the external electric field;
外电场作用下水分子结构和电子光谱
Research on Refraction and Underwater Welded-Seam Structured-Light Sensor
水下焊缝结构光传感器折射问题研究
Structural Design of 30000 t Jacket Launch Barge
30000t导管架下水驳船结构设计
Vertical pipe shield and underwater pile-foundation protection frame for wellhead
垂直护管水下桩基式井口保护架结构
Stuctural Water-prllf construction Technology for Project Under Water-rich Sand Bed
富水砂层地下工程的结构防水施工技术
The Research of Variable Structure Control Technology of Autonomous Underwater Vehicle Navigating Near Surface;
水下机器人近水面运动的变结构控制技术研究
Analysis of Abnormal Quality of Environmental Water in Deep-buried Underground Structures
深埋地下结构工程环境水水质异常成因分析
Structural Analysis of Submersible Bridge
漫水桥漫水状态下的结构整体受力分析
Influence on Seepage Field in Foundation Excavation Dewatering of Underground Water Blocking Structure
地下阻水结构物对基坑降水流场的影响
PIV measurement of induced flow field structure caused by subnmerged air jet
水下气体射流的诱导水流场结构PIV测量
Study on Reinforcement of Segment Lining Structure for Large-scale Underwater Shield Tunnel
大型水下盾构隧道管片衬砌结构配筋问题研究
Research Dynamic Response of Warship at Underwater Non-contact Explosion;
舰船结构水下非接触爆炸下动力响应研究