检索结果-南通市图书馆

Research on Analytical Method of fatigue characteristics of Soft Yoke Mooring System Based on Full-Scale Measurement

引用

China Ocean Engineering 2017年第2期31卷 230-237页

作者： WU Wen-hua LV Bai-cheng YUE Qian-jin ZHANG Yan-tao LIN Yang Department of Engineering Mechanics State key Laboratory of Structural Analysis of Industrial EquipmentDalian University Tianjin Branch CNOOC

By focusing on the vulnerability of the structure of marine equipments, together with considering the randomness of meta-ocean load in statistics, a kind of analytical method of fatigue characteristics of marine structure based on full- scale and actual measurement of prototype is proposed. On the basis of short-term field measurement results of structural response, research is carried out on the fatigue analysis of hinge joints at the upper part of the Soft Yoke single point Mooring System （SYMS） by simultaneously monitoring the environmental load and considering the design criteria of offshore structure. Through analysis of finite element modeling, the time-histories of typical stress response are obtained, and then the assessment of fatigue damage at key hinge joints is conducted. The simulation results indicate that the proposed method can accurately analyze the fatigue damage of offshore engineering structure caused by the effect of wave load. The present analytical method of fatigue characteristics can be extended on other offshore engineering structures subjected to meta-ocean load.

关键词： fatigue characteristics full scale measurement finite element method SYMS

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effects of fatigue characteristics on Static and Dynamic Performance of Eucommia Rubber Isolators

引用

Journal of Applied Mathematics and Physics 2023年第7期11卷 2165-2177页

作者： Yongsheng Peng Junfeng Yang Guopei Pan Jianan Zhang Zhuo Wang Shanghai Marine Equipment Research Institute Shanghai China

This study aimed to investigate the effect of fatigue characteristics on the static and dynamic performance of Eucommia ulmoides gum isolators, and to explore the performance changes of Eucommia ulmoides gum isolators with different formulations. For this purpose, we used five formulations of Eucommia ulmoides gum isolators and set different fatigue test methods to study the static and dynamic performance changes of Eucommia ulmoides gum isolators with different formulations by changing the amplitude. The experimental results showed that the addition of Eucommia ulmoides gum had an impact on the performance of the isolator, and the number of fatigue cycles would lead to the hardening of the Eucommia ulmoides gum isolator and changes in its static and dynamic performance. In the range of two million vibrations, the performance change of the isolator was significant in the early stage and then tended to be flat, indicating that the impact of fatigue on the performance of the isolator would not continue to persist. It is worth noting that the study found that the addition of 30% Eucommia ulmoides gum had the least impact on the performance of the isolator under fatigue. Therefore, for long-term use of Eucommia ulmoides gum isolators, attention should be paid to their fatigue characteristics to ensure their stability and reliability. Additionally, this study provides a reference for the design and application of Eucommia ulmoides gum isolators. In summary, this study provides important reference value for a deeper understanding of the fatigue characteristics of Eucommia ulmoides gum isolators and for ensuring their stable and reliable performance. .

关键词： fatigue characteristics Eucommia Rubber Vibration Isolators Static Performance Dynamic Performance

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

In-Situ Test on fatigue characteristics of Top-Mounted Dividable Pile-Board Subgrade for High-Speed Railway

引用

Journal of Southwest Jiaotong University(English Edition) 2010年第1期18卷 8-12页

作者：苏谦白皓王迅蒋浩然 School of Civil Engineering Southwest Jiaotong University

To simulate the fatigue characteristics of the pile-board structure under long-term dynamic load, using the in-situ dynamic testing system DTS-1, the forced vibration loading was repeated one million times at different cross-sections of the pile-board structure for high-speed railway. The dynamic deformation, permanent deformation and dynamic stress of main reinforcements were measured. The test results show that the dynamic responses of the pile-board structure almost did not vary with the forced vibration times under the simulated trainload. After one million times of forced vibration, the permanent deformations of the midspan section of intermediate span and midspan section of side span were 0.7 mm and 0. 6 mm, respectively, and there was no accumulative plastic deformation at the bearing section of intermediate span.

关键词： High-speed railway Top-mounted dividable pile-board structure In-situ test Forced vibration test fatigue characteristics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Bond Parameters Affecting to fatigue characteristics of a Co-cured Single Lap Joint Subjected to Cyclic Tensile Loads

Bond Parameters Affecting to Fatigue Characteristics of a Co...

引用

第十三届国际复合材料会议

作者： SeokBeomCho KumCheolShin JungJuLee Department of Mechanical Engineering Korea Advanced Institute of Science and Technology 373-1 Kusong-dong Yusong-gu Taejon Korea 305-701 Department of Mechanical Engineering Korea Advanced Institute of Science and Technology 373-1 Kusong-dong Yusong-gu Taejon Korea 305-701 Department of Mechanical Engineering Korea Advanced Institute of Science and Technology 373-1 Kusong-dong Yusong-gu Taejon Korea 305-701

＜正＞A co-cured joining method, whose curing and bonding processes are achieved simultaneously, can be regarded as an adhesively bonded joining method because it uses an excess resin extracted from the composite materials as an adhesive. A co-cured joint requires neither an additional adhesive nor surface treatment of the composite adherend. The analysis and design of the co-cured joint for composite structures are simpler than that of the adhesively bonded joint, which uses an additional adhesive.

关键词： co-cured single lap joint surface roughness stacking sequence fatigue characteristics

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Mechanical behavior of entangled metallic wire materials-polyurethane interpenetrating composites

引用

Defence Technology（防务技术） 2023年第2期20卷 120-136页

作者： Xiao-yuan Zheng Zhi-ying Ren Hong-bai Bai Zhang-bin Wu You-song Guo College of Mechanical Engineering and Automation Fuzhou UniversityFuzhou350116China Institute of Metal Rubber&Vibration Noise Fuzhou UniversityFuzhou350116China Gongbang Vibration Control Technology Co. LtdJiangsuJiangyin214431China

Composite materials exhibit the impressive mechanical properties of high damping and stiffness,which cannot be attained by employing conventional single *** these lines,a novel material architecture is presented in this work in order to fabricate composites with enhanced mechanical *** specifically,entangled metallic wire materials were used as the active matrix,whereas polyurethane was employed as the reinforcement *** a result,an entangled metallic wire material-polyurethane composite with high damping and stiffness was prepared by enforcing the vacuum infiltration *** top of that,the mechanical properties(loss factor,energy consumption,and average stiffness)of the proposed composite materials were characterized by performing dynamic tests,and its fatigue characteristics were verified by the micro-interface bonding,as well as the macro-damage *** impact of the density,preloading spacing,loading amplitude,and exciting frequency on the mechanical properties of the composites were also thoroughly *** extracted results indicate that the mechanical properties of the composites were significantly enhanced than those of the pure materials due to the introduction of interface ***,the average stiffness of the composites was about 10 times the respective value of the entangled metallic wire ***,a rise in the loading period leads to some failure between the composite interfaces,which reduces the stiffness property but enhances the damping dissipation ***,a comprehensive dynamic mechanical model of the composites was established,while it was experimentally *** proposed composites possess higher damping features,i.e.,stiffness characteristics,and maintain better fatigue characteristics,which can broaden the application range of the *** addition,we provide a theoretical and experimental framework for the research and applications in the field of metal ma

关键词： Entangled metallic wire material Composites materials Damping property Stiffness fatigue characteristics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Study on fatigue test of submarine oil pipeline

Study on fatigue test of submarine oil pipeline

引用

第十四届中国海洋（岸）工程学术讨论会

作者： GU Fan1,ZHOU Jing1,HUANG Cheng-kui1,LI Lin-pu2 (1. School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China 2. School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China)

The experimental research on the static characteristics and fatigue characteristics of steel wire wound reinforced rubber flexible pipe under combined effect of internal pressure and transverse bending was carried out. The test results show that the axial tensile elastic modulus of flexible pipe is not equal to compressive elastic modulus. In the process of fatigue test, there is no downward trend in the axial elastic modulus of flexible pipe. In the light of various phenomena that happened in the fatigue test, the fatigue damage mechanism of flexible pipe was discussed.

关键词： steel wire wound reinforced rubber flexible pipe static characteristics fatigue characteristics fatigue damage

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：