variable pitch

A study on grinding method about drill tip with variable-pitch quasi-helicoid

关于钻尖的变导程拟螺面磨法的研究

By simulated the typical wind field situation, independent variable pitch control strategy is tested.

通过对风电场和风机风况的实际模拟对独立变桨控制策略进行了试验研究。

Mathematical Model for Variable Pitch Spiral Drill Point and Grinding Interference

变螺距螺旋面钻尖的数学模型及其刃磨干涉

The horizontal anger has a variable pitch.

横向搅龙具有可变的螺距.

In nowadays wind power generation technology, Variable Speed Constant Frequency wind power technology and Variable Pitch Control technology become the mainstream wind power technology and has a very good prospects of development.

在现今的风力发电技术中，变速恒频风力发电技术和变浆距调节技术成为了主流的风力发电技术，具有很好的发展前景。

Secondly , a variable structure controller of pitch channel of cruise missile is designed.

导弹纵向通道变结构控制器设计.

Study on performance prediction methods of the vertical-axis variable-pitch turbine for tidal stream energy conversion based on momentum theory

潮流发电水轮机基于动量定理的性能计算方法研究

Wind turbine develops from initial constant speed fixed pitch to variable speed variable pitch.

风力发电机组从最初的定速定桨风力机发展为变速变桨风力机。

Variable pitch control for wind energy conversion system with LPV dynamic compensation

LPV动态补偿的风能转换系统变桨距控制

Variable pitch vertical axis turbines have been proposed, which can markedly increase the power extraction efficiency at low tip speed through controlling the rotor blades pitch at all points of their rotation cycle.

目前已经提出了一种变螺距垂直轴水轮机，它可以通过控制转子在一个旋转周期上所有点的叶片间距来显著提高能量的提取效率。

With a view to solving the above problem, the improvement of the UP boiler, especially the possibility of using variable pitch waterwall for sliding pressure operation based on the calculation of the effectiveness factor for furnace wall area, is explored in this article.

鉴于上述问题，本文就UP炉的改进问题，从炉膛水冷壁角系数的计算分析开始，探讨UP炉采用变节距水冷壁对于滑压运行的可能性。

Therefore, uses the ANSYS re-development functions to achieve the parametric modeling of the taper screw rod with variable root and pitch, for carried on the analysis and the optimized design using ANSYS to each king of structure screw rod has laid the foundation.

为此，利用ANSYS二次开发功能，实现秸秆粗纤维饲料挤压膨化机变根径、变螺距锥形螺杆的参数化建模，为利用ANSYS对各种结构的螺杆进行分析和优化设计奠定了基础。

Mathematic Modeling and Machining Method of Changed Angle and Variable Pitch Spiral Groove

变倾角变导程螺旋槽的数学建模和加工方法

Compression Cancellous Bone Screw with both ends thread is a Variable pitch screw designed tO provide rigid' fixation of cancellous bone fracture.

双端螺纹松质骨加压螺钉的特点是两端螺纹具有不同的螺距，无螺帽。

A discussion on the critical speed of the upright cylinder helix ditching machine of the variable pitch

立轴柱形变螺距螺旋开沟机临界转速分析

MW variable speed constant frequency wind turbine from shenyang university of technology is a variable pitch wind turbine, it can change pitch to adjust power above rated wind speed.

由沈阳工业大学研制的MW级变速恒频风电机组属于变桨距型机组，它在额定风速以上进行变桨距调功控制。

The system of yaw and variable pitch is the most important components of wind power generating, which has an direct impact to the aircraft crew utilization ratio to the wind energy source and the complete machine function.

偏航和变桨距系统是风力发电机组的重要组成部分，直接影响机组对风能的利用效率和整机性能。

Dynamic analysis of failure of slush pump valve and design of variable pitch valve spring

钻井泵泵阀失效的动力学分析及泵阀变螺距弹簧设计

Variable pitch MIDI synth complete source code can be used directly.

变桨距的MIDI合成完整的源代码可以直接使用.