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Optimization design of spar cap layup for wind turbine blade
Jie ZHU, Xin CAI, Pan PAN, Rongrong GU
《结构与土木工程前沿(英文)》 2012年 第6卷 第1期 页码 53-56 doi: 10.1007/s11709-012-0147-9
关键词: wind turbine blade spar cap layup optimization design blade mass
Novel casting processes for single-crystal turbine blades of superalloys
Dexin MA
《机械工程前沿(英文)》 2018年 第13卷 第1期 页码 3-16 doi: 10.1007/s11465-018-0475-0
This paper presents a brief review of the current casting techniques for single-crystal (SC) blades, as well as an analysis of the solidification process in complex turbine blades. A series of novel casting methods based on the Bridgman process were presented to illustrate the development in the production of SC blades from superalloys. The grain continuator and the heat conductor techniques were developed to remove geometry-related grain defects. In these techniques, the heat barrier that hinders lateral SC growth from the blade airfoil into the extremities of the platform is minimized. The parallel heating and cooling system was developed to achieve symmetric thermal conditions for SC solidification in blade clusters, thus considerably decreasing the negative shadow effect and its related defects in the current Bridgman process. The dipping and heaving technique, in which thin-shell molds are utilized, was developed to enable the establishment of a high temperature gradient for SC growth and the freckle-free solidification of superalloy castings. Moreover, by applying the targeted cooling and heating technique, a novel concept for the three-dimensional and precise control of SC growth, a proper thermal arrangement may be dynamically established for the microscopic control of SC growth in the critical areas of large industrial gas turbine blades.
关键词: superalloy investment casting Bridgman process directional solidification single crystal turbine blade
Mobile platform for hydraulic turbine blade repair robot
GUI Zhongcheng, CHEN Qiang, SUN Zhenguo, ZHANG Wenzeng, LIU Kang
《机械工程前沿(英文)》 2008年 第3卷 第2期 页码 164-169 doi: 10.1007/s11465-008-0035-0
DUAN Wei
《能源前沿(英文)》 2008年 第2卷 第1期 页码 107-115 doi: 10.1007/s11708-008-0018-1
关键词: Probability sensitivity sensitivity analysis number cross-section statistical
Condition monitoring of a wind turbine generator using a standalone wind turbine emulator
Himani,Ratna DAHIYA
《能源前沿(英文)》 2016年 第10卷 第3期 页码 286-297 doi: 10.1007/s11708-016-0419-5
关键词: condition monitoring (CM) wind turbine emulator (WTE) wind turbine generator (WTG) maximum power point tracking (MPPT) tip speed ratio (TSR) rotor faults stator faults
Review of aeroelasticity for wind turbine: Current status, research focus and future perspectives
Pinting ZHANG, Shuhong HUANG
《能源前沿(英文)》 2011年 第5卷 第4期 页码 419-434 doi: 10.1007/s11708-011-0166-6
《结构与土木工程前沿(英文)》 页码 1086-1099 doi: 10.1007/s11709-023-0976-8
Effects of elastic support on the dynamic behaviors of the wind turbine drive train
Shuaishuai WANG, Caichao ZHU, Chaosheng SONG, Huali HAN
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 348-356 doi: 10.1007/s11465-017-0420-7
The reliability and service life of wind turbines are influenced by the complex loading applied on the hub, especially amidst a poor external wind environment. A three-point elastic support, which includes the main bearing and two torque arms, was considered in this study. Based on the flexibilities of the planet carrier and the housing, a coupled dynamic model was developed for a wind turbine drive train. Then, the dynamic behaviors of the drive train for different elastic support parameters were computed and analyzed. Frequency response functions were used to examine how different elastic support parameters influence the dynamic behaviors of the drive train. Results showed that the elastic support parameters considerably influenced the dynamic behaviors of the wind turbine drive train. A large support stiffness of the torque arms decreased the dynamic response of the planet carrier and the main bearing, whereas a large support stiffness of the main bearing decreased the dynamic response of planet carrier while increasing that of the main bearing. The findings of this study provide the foundation for optimizing the elastic support stiffness of the wind turbine drive train.
关键词: wind turbine drive train elastic support dynamic behavior frequency response function
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
A complete modeling and simulation of DFIG based wind turbine system using fuzzy logic control
Abdelhak DIDA,Djilani BENATTOUS
《能源前沿(英文)》 2016年 第10卷 第2期 页码 143-154 doi: 10.1007/s11708-016-0402-1
关键词: wind turbine generation system (WTGS) doubly-fed induction generator (DFIG) maximum power point tracking (MPPT) vector control (VC) fuzzy logic controller (FLC)
Characterization of aerodynamic performance of wind-lens turbine using high-fidelity CFD simulations
Islam HASHEM, Aida A. HAFIZ, Mohamed H. MOHAMED
《能源前沿(英文)》 2022年 第16卷 第4期 页码 661-682 doi: 10.1007/s11708-020-0713-0
关键词: shroud diffuser-augmented wind turbine (DAWT) Betz limit aerodynamics computational fluid dynamics (CFD)
Nengsheng BAO, Weidou NI,
《能源前沿(英文)》 2010年 第4卷 第2期 页码 205-210 doi: 10.1007/s11708-009-0073-2
关键词: framework design hybrid energy system wind farm gas turbine power plants
Weak characteristic information extraction from early fault of wind turbine generator gearbox
Xiaoli XU, Xiuli LIU
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 357-366 doi: 10.1007/s11465-017-0423-4
Given the weak early degradation characteristic information during early fault evolution in gearbox of wind turbine generator, traditional singular value decomposition (SVD)-based denoising may result in loss of useful information. A weak characteristic information extraction based on µ-SVD and local mean decomposition (LMD) is developed to address this problem. The basic principle of the method is as follows: Determine the denoising order based on cumulative contribution rate, perform signal reconstruction, extract and subject the noisy part of signal to LMD and µ-SVD denoising, and obtain denoised signal through superposition. Experimental results show that this method can significantly weaken signal noise, effectively extract the weak characteristic information of early fault, and facilitate the early fault warning and dynamic predictive maintenance.
关键词: wind turbine generator gearbox µ-singular value decomposition local mean decomposition weak characteristic information extraction early fault warning
许国东,叶杭冶,解鸿斌
《中国工程科学》 2018年 第20卷 第3期 页码 44-50 doi: 10.15302/J-SSCAE-2018.03.007
风力发电是可再生能源发电的重要形式,也是我国目前重点发展的、具有全球竞争力的战略性新兴产业之一,而风能装备技术的发展则是我国实现可再生能源高比例应用和产业持续健康发展的重要依托。本文详细分析了风电机组技术的发展历程和国内外发展现状,分析了国内外技术的差距与瓶颈,并对风电机组技术在提升结构效率、降低经济成本、增强环境友好性和资源节约利用等方面的发展趋势和市场需求进行了展望。
标题 作者 时间 类型 操作
Optimization design of spar cap layup for wind turbine blade
Jie ZHU, Xin CAI, Pan PAN, Rongrong GU
期刊论文
Mobile platform for hydraulic turbine blade repair robot
GUI Zhongcheng, CHEN Qiang, SUN Zhenguo, ZHANG Wenzeng, LIU Kang
期刊论文
Probability strength design of steam turbine blade and sensitivity analysis with respect to random parameters
DUAN Wei
期刊论文
Condition monitoring of a wind turbine generator using a standalone wind turbine emulator
Himani,Ratna DAHIYA
期刊论文
Review of aeroelasticity for wind turbine: Current status, research focus and future perspectives
Pinting ZHANG, Shuhong HUANG
期刊论文
Reliability-based design optimization of offshore wind turbine support structures using RBF surrogate
期刊论文
Effects of elastic support on the dynamic behaviors of the wind turbine drive train
Shuaishuai WANG, Caichao ZHU, Chaosheng SONG, Huali HAN
期刊论文
genetic algorithms based structural optimization and experimental investigation of the planet carrier in windturbine gearbox
Pengxing YI,Lijian DONG,Tielin SHI
期刊论文
A complete modeling and simulation of DFIG based wind turbine system using fuzzy logic control
Abdelhak DIDA,Djilani BENATTOUS
期刊论文
Characterization of aerodynamic performance of wind-lens turbine using high-fidelity CFD simulations
Islam HASHEM, Aida A. HAFIZ, Mohamed H. MOHAMED
期刊论文
Framework design of a hybrid energy system by combining wind farm with small gas turbine power plants
Nengsheng BAO, Weidou NI,
期刊论文
Weak characteristic information extraction from early fault of wind turbine generator gearbox
Xiaoli XU, Xiuli LIU
期刊论文