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Saleh YAGHOOBI, Ahmad SHOOSHTARI
《结构与土木工程前沿(英文)》 2018年 第12卷 第3期 页码 341-351 doi: 10.1007/s11709-017-0393-y
Slippage corresponds to the relative displacement of a bolted joint subjected to shear loads since the construction clearance between the bolt shank and the bolthole at assembly can cause joint slip. Deflections of towers with joint slippage effects is up to 1.9 times greater than the displacements obtained by linear analytical methods. In this study, 8 different types of joints are modelled and studied in the finite element program, and the results are verified by the experimental results which have been done in the laboratory. Moreover, several types of joints have been modelled and studied and load-deformation curves have also been presented. Finally, joint slip data for different types of angles, bolt diameter and bolt arrangements are generated. Thereupon, damping ratios (z) for different types of connections are reported. The study can be useful to help in designing of wind turbine towers with a higher level of accuracy and safety.
关键词: Joint slip cyclic loading Finite element modelling Experimental joint behavior damping ratios (
Experimental investigation of the influence on static and cyclic deformation of structural soft clay
CHEN Yunmin, CHEN Yingping, HUANG Bo
《结构与土木工程前沿(英文)》 2007年 第1卷 第4期 页码 422-429 doi: 10.1007/s11709-007-0057-4
Pengxing YI,Peng HUANG,Tielin SHI
《机械工程前沿(英文)》 2016年 第11卷 第4期 页码 388-402 doi: 10.1007/s11465-016-0404-z
Wind turbine gearbox (WTG), which functions as an accelerator, ensures the performance and service life of wind turbine systems. This paper examines the distinctive modal properties of WTGs through finite element (FE) and experimental modal analyses. The study is performed in two parts. First, a whole system model is developed to investigate the first 10 modal frequencies and mode shapes of WTG using flexible multi-body modeling techniques. Given the complex structure and operating conditions of WTG, this study applies spring elements to the model and quantifies how the bearings and gear pair interactions affect the dynamic characteristics of WTGs. Second, the FE modal results are validated through experimental modal analyses of a 1.5 WM WTG using the frequency response function method of single point excitation and multi-point response. The natural frequencies from the FE and experimental modal analyses show favorable agreement and reveal that the characteristic frequency of the studied gearbox avoids its eigen-frequency very well.
关键词: wind turbine gearbox modal analysis finite element analysis modal frequency bearing equivalence
ZHANG Jianhui, LU Jizhuang, XIA Qixiao, LI Hong
《机械工程前沿(英文)》 2007年 第2卷 第1期 页码 13-19 doi: 10.1007/s11465-007-0002-1
关键词: unsymmetrical theoretical flow theoretical equation pump flow converse flow
Wenjuan SUN, Linbing WANG, Yaqiong WANG
《结构与土木工程前沿(英文)》 2017年 第11卷 第3期 页码 322-328 doi: 10.1007/s11709-017-0387-9
关键词: Mechanical properties rock material texture mineral characteristics
Experimental investigation and design of aluminum columns with longitudinal welds
Yun WU, Qilin ZHANG
《结构与土木工程前沿(英文)》 2011年 第5卷 第3期 页码 366-373 doi: 10.1007/s11709-011-0101-2
关键词: aluminum alloy longitudinal weld heat-affected zone (HAZ) reduced strength zone (RSZ) buckling column experimental study
Performance and mechanism of carbamazepine removal by FeS-SO process: experimental investigation and
《环境科学与工程前沿(英文)》 2023年 第17卷 第9期 doi: 10.1007/s11783-023-1713-1
● Synergistic removal of carbamazepine (CBZ) was obtained in the FeS-S2O82– process.
关键词: FeS S2O82– Carbamazepine DFT calculations Degradation routes
《结构与土木工程前沿(英文)》 2023年 第17卷 第2期 页码 271-283 doi: 10.1007/s11709-022-0896-z
关键词: textile reinforced mortar bending tests acid and alkaline environment concrete overlay
Experimental investigation on possibility of oxygen enrichment by using gradient magnetic fields
CAI Jun, WANG Li, TONG Lige, SUN Shufeng, WU Ping
《化学科学与工程前沿(英文)》 2007年 第1卷 第3期 页码 271-276 doi: 10.1007/s11705-007-0049-x
Experimental investigation on desiccant air-conditioning system in India
Vijay MITTAL, B. Kant KHAN,
《能源前沿(英文)》 2010年 第4卷 第2期 页码 161-165 doi: 10.1007/s11708-009-0070-5
关键词: air ratios ambient conditions desiccant air-conditioning silica gel
Experimental investigation on mechanical properties of binary and ternary blended pervious concrete
Rekha SINGH, Sanjay GOEL
《结构与土木工程前沿(英文)》 2020年 第14卷 第1期 页码 229-240 doi: 10.1007/s11709-019-0597-4
关键词: mineral admixture ternary compressive strength split tensile strength pervious concrete ultrasonic pulse velocity
Experimental investigation on freeze−thaw durability of polymer concrete
《结构与土木工程前沿(英文)》 2021年 第15卷 第4期 页码 1038-1046 doi: 10.1007/s11709-021-0748-2
关键词: durability test freeze-thaw resistance polymer concrete residual compressive strength ASTM C666-15
Pengxing YI,Lijian DONG,Tielin SHI
《机械工程前沿(英文)》 2014年 第9卷 第4期 页码 354-367 doi: 10.1007/s11465-014-0319-5
To improve the dynamic performance and reduce the weight of the planet carrier in wind turbine gearbox, a multi-objective optimization method, which is driven by the maximum deformation, the maximum stress and the minimum mass of the studied part, is proposed by combining the response surface method and genetic algorithms in this paper. Firstly, the design points’ distribution for the design variables of the planet carrier is established with the central composite design (CCD) method. Then, based on the computing results of finite element analysis (FEA), the response surface analysis is conducted to find out the proper sets of design variable values. And a multi-objective genetic algorithm (MOGA) is applied to determine the direction of optimization. As well, this method is applied to design and optimize the planet carrier in a 1.5 MW wind turbine gearbox, the results of which are validated by an experimental modal test. Compared with the original design, the mass and the stress of the optimized planet carrier are respectively reduced by 9.3% and 40%. Consequently, the cost of planet carrier is greatly reduced and its stability is also improved.
关键词: planet carrier multi-objective optimization genetic algorithms wind turbine gearbox modal experiment
Manli LUO, Jing LIU
《能源前沿(英文)》 2013年 第7卷 第4期 页码 479-486 doi: 10.1007/s11708-013-0277-3
关键词: heat exchanger liquid metal mini-channel heat dissipation heat transfer coefficient
Abdelmadjid SI SALEM,Souad AIT TALEB,Kamal AIT TAHAR
《结构与土木工程前沿(英文)》 2015年 第9卷 第2期 页码 154-162 doi: 10.1007/s11709-015-0296-8
关键词: design GFRP-Jacket polymer tube test reliability analysis
标题 作者 时间 类型 操作
Joint slip investigation based on finite element modelling verified by experimental results on wind turbine
Saleh YAGHOOBI, Ahmad SHOOSHTARI
期刊论文
Experimental investigation of the influence on static and cyclic deformation of structural soft clay
CHEN Yunmin, CHEN Yingping, HUANG Bo
期刊论文
Numerical analysis and experimental investigation of modal properties for the gearbox in wind turbine
Pengxing YI,Peng HUANG,Tielin SHI
期刊论文
Theoretical analysis and experimental investigation of valveless piezoelectric pump with unsymmetrical
ZHANG Jianhui, LU Jizhuang, XIA Qixiao, LI Hong
期刊论文
Mechanical properties of rock materials with related to mineralogical characteristics and grain size through experimentalinvestigation: a comprehensive review
Wenjuan SUN, Linbing WANG, Yaqiong WANG
期刊论文
Experimental investigation and design of aluminum columns with longitudinal welds
Yun WU, Qilin ZHANG
期刊论文
Performance and mechanism of carbamazepine removal by FeS-SO process: experimental investigation and
期刊论文
Experimental investigation on concrete overlaid with textile reinforced mortar: Influences of mix, temperature
期刊论文
Experimental investigation on possibility of oxygen enrichment by using gradient magnetic fields
CAI Jun, WANG Li, TONG Lige, SUN Shufeng, WU Ping
期刊论文
Experimental investigation on desiccant air-conditioning system in India
Vijay MITTAL, B. Kant KHAN,
期刊论文
Experimental investigation on mechanical properties of binary and ternary blended pervious concrete
Rekha SINGH, Sanjay GOEL
期刊论文
Multi-objective genetic algorithms based structural optimization and experimental investigation of the
Pengxing YI,Lijian DONG,Tielin SHI
期刊论文
Experimental investigation of liquid metal alloy based mini-channel heat exchanger for high power electronic
Manli LUO, Jing LIU
期刊论文