Blade element theory was used to calculate unsteady aerodynamic loads in linear and nonlinear regimes.
桨叶气动力计算采用时域非定常空气动力计算模型，包括非线性分离和动态失速的影响。
These methods are compared, and the method based on blade element theory is selected in modeling of wind turbine rotor.
通过对这两种方法的比较，选用基于叶素理论的方法建立了风轮模型。
Based on the blade element-momentum theory, this paper studied the aerodynamic performance prediction model for small wind turbines.
基于叶素动量理论分析了小型风力机的气动性能分析模型，并提出了叶片的气动优化设计方法。
Based on the traditional Momentum-Blade Element theory, an improved method of aerodynamic calculation about the horizontal axis wind turbine in yaw or in pitch-up is presented in this paper.
本文将动量-叶素理论推广应用于计算水平轴风车叶轮有侧偏角或上仰角时的气动力。
This paper is based on stress analysis of directionally solidified turbine blade with the Finite Element Method. The reliability analysis method with a simple failure model is proposed.
本文在正交异性材料定向结晶涡轮叶片的应力有限元分析的基础上，以一种简单的破坏模式列出了可靠度的计算方法。
This paper presents the stress field research of the blade of pipe cutting machine by SAP5 of the finite element method.
本文使用有限元线性系统静动力结构分析程序（SAP5）对管材剪切机刀片应力场进行了研究。
CAD model of LS200 helical structure is established by dividing the helical body into helical axis and helical blade and finite element meshing is performed.
将螺旋体分解成螺旋轴和螺旋叶片两部分，建立LS200螺旋体结构的CAD模型，并对其进行有限元网格的划分。
The die forming process of a hydro turbines blade was simulated by the thermal coupled finite element method.
采用热力耦合三维刚塑性有限元方法，对水轮机叶片模压成型工艺进行了模拟研究。
The display unit comprises a flexible circuit board matched with the shape of the curved surface of the fan blade, and a luminous element arranged on the flexible circuit board.
所述显示单元包括与扇叶叶片曲面形状适配安装的挠性电路板及设于所述挠性电路板上的发光元件。
The method of main element analysis is used. A comprehensive evaluation method of performance for multi-blade centrifugal fan in air conditioner is given.
采用主成分分析方法，提出了一种空调器多翼离心通风机性能的综合评定方法。
The hair collection element can be in the form of a blade and a hair collecting material mounted to the blade for contacting a surface to be cleaned.
毛发收集元件可以是桨叶的形式，并且毛发收集材料安装至桨叶以接触待清洁表面。
Based on the second-order perturbation technique, the stochastic finite element method (SFEM) of the strength analysis of the turbine blade is introduced in this paper.
本文基于二阶摄动技术研究叶片强度分析的随机有限元方法。
Numerical simulations of the course of the plate blade impacting target with the different angles and the initial velocity were performed based on the finite element model.
建立有限元模型，对平板条叶片以不同角度和初始速度撞击矩形靶板的过程进行了数值模拟。
The lateral vibration of the high-speed rotating disk cutter slice blade was studied by the finite element analysis and the experimental measurement.
针对高速旋转圆盘刀具薄刀片实际工作时存在的横向振动问题，应用有限元方法及实验测量进行了研究。
The work summarized in this paper aims at improving the accuracy of rotor blade dynamics analysis, and that of its internal force calculation in particular, by the finite element method.
提高用有限元法进行桨叶动力分析、特别是动内力计算的精度是本文工作的主要目的。
The main purpose of the work described in this paper is to improve the accuracy of rotor blade dynamics analysis, especially, that of internal force calculation by the finite element method.
提高用有限无法进行桨叶动力分析、特别是内力计算的精度是本文工作的主要目的。
On the one hand, casting shrinkages at different positions of the blade are considered as nonlinear thermo-mechanical casting deformations that are calculated with accuracy by finite element analysis.
一方面，基于叶片收缩变形位移场的有限元仿真结果，更为准确地计算铸件不同部位的收缩率；
Stress distributions on the 1000mm fir tree blade root and the rim are studied through finite element method and photoelastic method.
本文介绍了用有限元和光测弹性方法，研究1米长叶片枞树型叶根和轮缘的应力分布。
The approach of blade-element theory is opposite that of momentum theory since it is concerned with the forces produced by the blades as a result of the motion of the fluid.
叶片元素理论的方法与动量原理的方法相反，因为它关注的是由流体运动导致叶片产生的力。
The blade response is calculated from nonlinear periodic equations using a finite element in time scheme. For induced inflow...
根据桨叶气弹响应的周期性，利用时间有限元法并通过旋翼配平求解桨叶的非线性气弹响应。
The blade response is calculated from nonlinear periodic equations using a finite element in time scheme. For induced inflow...
根据桨叶气弹响应的周期性，利用时间有限元法并通过旋翼配平求解桨叶的非线性气弹响应。
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