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tail support
相关语句
  收尾支护
     Improvement on Tail Support in Zhenchengdi Mining Coal Face
     高档工作面收尾支护方式的改进方法
短句来源
     Introduces the improvement on tail support in Zhenchen gdi coal mine 22144 上, expounds some support measures and effects achived.
     介绍了集团公司镇城底矿 2 2 1 1 4上 高档工作面改进收尾支护方式 ,阐述了采用板梁配合半圆木腿顺利收尾所采取的一些支护措施及取得的效果。
短句来源
  “tail support”译为未确定词的双语例句
     In high-speed water tunnel, drag tests of the underwater body model under natural and artificial ventilated conditions are carried out separately, and the numerical simulation is used to analyze the effect of tail support, drag components and scale effect.
     在高速水洞内,进行了某水下航行体模型自然状态和通气产生超空泡状态下的阻力试验,并针对实验中的尾撑影响、阻力成分和尺度效应问题,用数值模拟方法进行了分析.
短句来源
  相似匹配句对
     Support?
     支持?
短句来源
     Something about support wrapping of marine tail-shaft
     谈谈艉轴支架包壳
短句来源
     THE CALCULATION OF DYNAMICAL RESPONSES FOR A TAIL-SUPPORT SYSTEM
     关于尾撑系统动力响应的计算和分析
短句来源
     nutrition support;
     营养支持;
短句来源
     THE LONG TAIL ON INTERNET
     互联网有一条长长的尾巴
短句来源
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  tail support
The directions called for 42 grams of weight in the nose, or use the provided tail support.
      


In this paper we study the dynamical responses for a tail-support system with definite parameters in a wind tunnel. When the angle of attack is less than 25°and the flow is laminal,the aerodynamical forces,acting on the jet model, can be expressed analytically by some definite components, such as: aeroelastical forces, aerodamping force, the air pressure fluctuation, and the vortex-induced force. The equation of motion for the tail-support system with viscous damping and derodynamical...

In this paper we study the dynamical responses for a tail-support system with definite parameters in a wind tunnel. When the angle of attack is less than 25°and the flow is laminal,the aerodynamical forces,acting on the jet model, can be expressed analytically by some definite components, such as: aeroelastical forces, aerodamping force, the air pressure fluctuation, and the vortex-induced force. The equation of motion for the tail-support system with viscous damping and derodynamical excitation can be presented in the matrix form, and finally we solved this equation numerically on the digital computer by Wilson-0 method.

本文是研究尾撑系统在做吹风实验时系统的动力响应问题。文章中讨论了在系统的气动阻尼、气动刚度、风力脉动以及卡门涡街效应等因素的影响下,当攻角(以及偏航角)较小(小于25°)时,作用于系统上广义力的形式。然后应用有限元素法建立系统结构的振动方程。最后应用Wilson-θ法对系统的结构振动方程进行数值求解。

The authors have performed some experiments in low speed wind tunnel to observe the flow phenomena on a smooth sphere by oil flow and tufts methods. We found that the famous Ω structure of vortex on sphere , discovered by S.Taneda, only existed on the surface with presence of oil flow and tail supporting. It seems as if the Ω structure of vortex is not a proper flow pattern of sphere. The reason is not yet clear and further work is worthy to be continued.

本文作者在低速风洞中通过油流和丝线法对光滑圆球面上的流谱作了观察,发现S.Taneda[3]提出的著名的Ω型旋涡结构只是在球面上有油流存在,并且是尾支杆支承时才出现,不像是圆球固有的流动特性,原因尚不明,特此存疑。

This paper introduces the system which measures and controls the angle of attack in the 4m×3m low speed wind tunnel of CARDC low speed institute, we focus this paper on design idea, system construction,the theory and method to measure actual aug ie of attack,software flow chart,the main obtained technical index and so on.The system successfully uses the acceleration transducer to measure model actual angle of attack.It is also used in the tail-supported high angle of attack system,the angle of attack...

This paper introduces the system which measures and controls the angle of attack in the 4m×3m low speed wind tunnel of CARDC low speed institute, we focus this paper on design idea, system construction,the theory and method to measure actual aug ie of attack,software flow chart,the main obtained technical index and so on.The system successfully uses the acceleration transducer to measure model actual angle of attack.It is also used in the tail-supported high angle of attack system,the angle of attack range which the system can measure and control is from -30°to 110°.The system is the first time in implementating integration of a system to measure and control actual angle of attack. This makes an excellent foundation for the high angle of attack test and real time measuring and control angle of attack.

本文介绍了中国空气动力研究与发展中心低速所4米×3米低速风洞实际攻角测控系统的设计思想、系统构成、实际攻角的测量原理、测量方法、系统软件包及达到的主要技术指标。该系统成功地将加速度传感器用于模型实际攻角的测量,并用于尾撑大攻角控制系统,测控范围可以覆盖-30~110°的攻角行程;首次实现了实际攻角的测量一体化,为大攻角试验和实时攻角测量打下了良好的基础。

 
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