Description: Wind blade chord and twist angle optimization by using
genetic algorithms
Juan M´ endez and David Greiner Platform: |
Size: 281600 |
Author:PEN |
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Description: MIT--航空航天工程中的计算方法_有限元方法实例——涡轮叶片传热
MIT公开课程--航空航天工程中的计算方法
这门课程适用于在航空和航天工程中出现的计算方法的入门学习。其应用是从航空宇宙结构，空气动力学，动力学和控制，和航空宇宙系统选出的。其技术包括：常微分方程系统的数值积分；偏微分方程式的有限差分,有限体积, 和有限元的离散化；数值线性代数；本征值问题和带有约束的最优化。
-MIT- Aerospace Engineering in the finite element method calculation _ instance- turbine blade heat transfer MIT Open Course- Aerospace engineering calculation methods for this course in aviation and aerospace engineering in the calculation of the entry appears to learn. The application is from aerospace structures, aerodynamics, dynamics and control, and aerospace systems selected. The technologies include: numerical integration of ordinary differential equations systems partial differential equations of finite difference, finite volume, and finite element discretization numerical linear algebra eigenvalue problems with constraints and optimization. Platform: |
Size: 268288 |
Author:skp |
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Description: MIT--航空航天工程中的计算方法_概率论方法实例——涡轮叶片中的热传导问题
MIT公开课程--航空航天工程中的计算方法
这门课程适用于在航空和航天工程中出现的计算方法的入门学习。其应用是从航空宇宙结构，空气动力学，动力学和控制，和航空宇宙系统选出的。其技术包括：常微分方程系统的数值积分；偏微分方程式的有限差分,有限体积, 和有限元的离散化；数值线性代数；本征值问题和带有约束的最优化。-MIT- Aerospace engineering calculation methods of probability theory _ instance- turbine blade heat conduction problem in the MIT Open Course- Aerospace engineering calculation methods for this course in aviation and aerospace engineering calculation methods appear of getting started. The application is from aerospace structures, aerodynamics, dynamics and control, and aerospace systems selected. The technologies include: numerical integration of ordinary differential equations systems partial differential equations of finite difference, finite volume, and finite element discretization numerical linear algebra eigenvalue problems with constraints and optimization. Platform: |
Size: 331776 |
Author:skp |
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Description: 本文根据我国西北地区的风频风能曲线，用最优设计攻角沿叶片轴线的非线性分布修正了传统Wilson算法，对大型水平轴风力机叶片的
气动性能进行了优化设计。该优化设计利用Matlab优化工具箱，优化速度干涉因子的迭代计算，可提高计算效率。从结构及加工工艺角度修正翼型，考虑了多翼型和变攻角等因素对叶片外形优化的影响。具体对1．2MW风力发电机组叶片外形的气动性能进行了计算和优化设计，所获得的气动性能结果表明了该优化设计的有效性和可行性。相关结果可为风力机叶片外形设计提供参考。-Based in Northwest China wind band wind energy curve, the non-linear distribution of the optimum design angle of attack along the blade axis Fixed Wilson algorithm, the optimal design of large horizontal axis wind turbine blade aerodynamic performance. The optimal design using Matlab optimization toolbox, optimizing the iterative calculation of the velocity interferometer factor, can improve the computational efficiency. Airfoil from the structure and processing angle correction, taking into account the impact of multi-airfoil and change the angle of attack and other factors on the blade shape optimization. 1.2MW wind turbine blade profile aerodynamic performance calculation and optimization design, the obtained aerodynamic performance results show that the effectiveness and feasibility of the optimal design. Relevant results for wind turbine blade shape design reference. Platform: |
Size: 2300928 |
Author:chentiange |
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Description: 基于Matlab软件中的优化算法和优化工具，针对风力机翼型通用型线集成表达式建立了优化数学模型。以风力机翼型的最大升阻比为优化设计目标函数，翼型形状控制方程的系数为设计变量，翼型的厚度和弯度为约束条件，设
计得到了相对厚度为18％的风力机翼型，并对其性能进行了计算分析。研究结果拓宽了风力机叶片翼型的设计思路和设计方法。-Based the Matlab software optimization algorithm and optimization tools for the integrated expression of the general profile of the wind turbine airfoil optimization model. Wind turbine airfoil maximum lift-drag ratio for the optimal design objective function coefficients of the equation of the airfoil shape control as design variables, airfoil thickness and curvature constraints, the design has been the relative thickness of 18 of wind turbine airfoil , and its performance is calculated and analyzed. The findings broaden the wind turbine blade airfoil design ideas and design methods. Platform: |
Size: 188416 |
Author:chentiange |
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Description: 本文利用MATLAB的遗传算法工具箱，对弦长和扭角沿风力机展向分布进行优化，得到设计工况下的最优叶片设计。目标函数是设计工况下基于动量叶素理论和Glauert等修正所得出的功率系数。在设计工况下得到的设计结果，其功率系数在一定的风速范围内都能保持一个较高的数值，同时其有效攻角分布大致都在所选翼型的升力与阻力系数的比值最大处，与理论相符合。其结果说明该优化实际的有效性。-In this paper, the use of MATLAB genetic algorithm toolbox, chord length and twist angle along the wind turbine development to distribution optimized to obtain the optimal design conditions blade design. The objective function is to design conditions based on the results of momentum blade element theory and Glauert correction power factor. Design results in the design conditions, the power factor within the range of wind speeds can maintain a higher value, the effective angle of attack distribution substantially in the the selected airfoil lift and drag coefficient ratio of maximum , theoretical analysis and show. The results indicate the validity of the actual optimization. Platform: |
Size: 66560 |
Author:chentiange |
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Description: 提高风力机将风能转化为机械能的效率，根据我国西北地区的风频风能曲线，用最优设计攻角沿叶片轴线的非线性分布修正传统Wilson算法，优化设计大型水平轴风力机叶片的气动性
能．该优化设计利用Madab优化工具箱，优化速度干涉因子的迭代计算，提高计算效率；考虑多翼型和变攻角等因素对叶片外形优化的影响，从结构及加工工艺角度修正翼型．通过对1．2MW风力发电机组叶片外形的气动性能计算和优化设计，结果表明该优化设计的有效性和可行性，可为风力机叶片外形设计提供参考．-Improve wind turbine wind energy into mechanical energy efficiency, according to the Northwest China wind frequency wind power curve, optimum design angle of attack along the blade axis of traditional non-linear distribution correction Wilson algorithm to optimize the design of the aerodynamic performance of the large-scale horizontal axis wind turbine blades . The Optimal Design Optimization Toolbox Madab optimized for speed interference factor iterative calculation to improve computational efficiency consider multi-airfoil and change the angle of attack and other factors on the blade shape optimization, airfoil from the structure and processing angle correction. By 1.2MW wind turbine blade shape aerodynamic performance calculation and optimization design, the results show that the effectiveness and feasibility of the optimized design can provide a reference for the wind turbine blade shape design. Platform: |
Size: 228352 |
Author:chentiange |
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Description: 猜数字游戏
能够随机出现十以内的数字
。。。。。(In this paper, the multi-objective structural optimization design of torque converter is introduced with the application of genetic algorithm. The main optimization criteria are torque ratio, efficiency, permeability and a series of high efficiency. 16 variables are chosen as the main optimization parameters. Among them are: the core diameter and the cross section parameters, the blade angle and other core and shell. The range of values of these variables is obtained from the prototype analysis of the structure. A mathematical model based on multi streams is adopted. A torque converter ph410 is provided for hydrodynamic calculation. Provides a parameter sub optimal for the group used as a basis for further consideration of the results of these calculations. In addition, the influence of the range constraint on the optimization parameters is analyzed. The difference is great) Platform: |
Size: 13312 |
Author:jeremyleo
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Description: Wilson理论风电机叶片优化程序，可直接生成叶片的弦长叶与安装角。(The theory of Wilson wind turbine blade optimization program, chord length and installation can be directly generated leaf blade angle.) Platform: |
Size: 1024 |
Author:龙龙core
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Search - optimization blade