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死点     
相关语句
  dead point
    Analysis of the dead point position of plane four bar linkages
    平面四杆机构死点位置分析
短句来源
    Analysis and Application of the Mechanism′s Dead Point
    机构“死点”分析及其应用
短句来源
    The Analysis of Dead Point for Crank-and-rocker Mechanism and Its Application
    曲柄摇杆机构死点情况分析及其应用
短句来源
    The complex number vector analysis was employed to analyze the motion of crank rocker and crank slider mechanisms. Vector equations were established, from which the extreme angles, the positions of dead point and the minimum transmission angles of the mechanisms were analyzed. According to the angular relationship in the motion, the calculation equations were obtained.
    采用复数向量法对曲柄摇杆机构和曲柄滑块机构进行运动分析,建立矢量方程式,对机构的极位夹角、死点位置及最小传动角位置进行分析,按运动过程中的转角关系推导出计算公式,方法简便,思路清晰,求解问题的同时更加明确了运动过程中各构件间的位置关系。
短句来源
    The dead point position of mechanism is a common sight. Undoubtedly,it is very important for precise press-working to solve the problem of dead-point precision.
    机构的死点位置在机械中很常见,解决死点位置的精度问题对于精密压力加工无疑是非常重要的。
短句来源
更多       
  dead center
    Problem of Single Dead Center for Plane Rigid Body Guidance Mechanism with Two Roker Bar-One of The Applied Conditions for Third-Order Six Bar Mechanism
    平面刚体双摇杆导向机构的单死点问题——六杆三级机构的应用条件之一
短句来源
  dead-point
    Dead-point Precision of the Slider Block
    滑块的死点位置精度
短句来源
    RELIABILITY ANALYSIS FOR PREVENTING DEAD-POINT SEIZURE OF MECHANISM
    机构避免死点卡住可靠性分析
短句来源
    The dead point position of mechanism is a common sight. Undoubtedly,it is very important for precise press-working to solve the problem of dead-point precision.
    机构的死点位置在机械中很常见,解决死点位置的精度问题对于精密压力加工无疑是非常重要的。
短句来源
    This paper discusses the effects of the slider's weight and speed,temperature and joints clearance on dead-point precision of slide-block in crank-slider mechanism.
    文中讨论了曲柄滑块机构中滑块质量、滑块速度、温度和运动副间隙对滑块死点位置的影响。
短句来源
  dead points
    In the crank and rocker mechanism, when the rocker acts as the driving link, there will be two dead points in one working cycle.
    在曲柄摇杆机构中,当以摇杆为原动件时,工作一个循环以后,直观看出有两次死点位置出现。
短句来源
    In the present work, the Jacbi matrix of virtual displacement in the broad sense coordinates is employed to demonstrate that at the dead points the degree of freedom of the mechanism is zero.
    利用机构广义坐标虚位移线性方程的雅可比矩阵求秩,证明处在死点位置时,其自由度 W = 0。
短句来源
    This paper put forward a kind of improved structure for the supporting shaft of three - ring reducer, analyzed coordinate conditions for elastic deformation of the supporting shaft and established the elasto - dynamic equations of this kind of improved structure. A comparison is carried out between the improved structure and the original one's on its force bearing and natural frequency of eccentric sleeve of supporting shaft. The feasibility of overcoming the dead points of mechanism by this structure is analyzed.
    提出了一种三环减速器支撑轴的改进结构 ,分析了支撑轴的弹性变形协调条件并建立了这种改进结构的弹性动力学分析方程 ,对改进结构的支撑轴偏心套的受力和固有频率与原结构进行了对比 ,分析了这种结构克服机构死点的可行性。
短句来源
    In this paper,using the L'Hospital's theorem,a new method for analysis of velocity or transmission ratio of mechanisms with dead points or change points is presented.
    提出了运用洛毕达极限法则分析机构通过死点或切换点时的角速度或速比的新方法 ,并具体应用于具有切换点的GRASHOFneutral机构和GALLOWAY机构的运动分析 .
短句来源
    The computation shows that the loads of the bearings at the two dead points are not as high as depicted by past researchers. This result denies the existence of “dead point impact” which is widely accepted in academic community.
    结果表明 ,在这两个位置 ,轴承载荷并不很高 ,即“死点冲击”并不存在 .
短句来源

 

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      dead point
    "Dead point" dynamics in brain surface arterial anastomoses during an acute rise of blood pressure
          
    Also remarkable is the axial friction force due to the Poiseuille flow QPoise at the dead point, which can also be seen in the calculated curve.
          
    That would certainly help a crucial cog in the sustainable development wheel over the dead point.
          
    The flow peaks at the outer and inner dead point of the piston are caused by the Poiseuille flow, when the piston velocity is zero.
          
    Wish to be dead, arrived at dead point, totally discouraged 14.
          
      dead center
    To achieve this goal, the authors have worked out a computational model that allowed them to determine the value of the gained geothermal heat flux using a double-pipe geothermal heat exchanger with a dead center.
          
    An equivalent "tumble ratio" was defined and evaluated using the measured velocity fields at BDC (bottom dead center).
          
    The location was at a mid-plane of the top dead center (TDC) clearance height, and the engine was motored at a speed of 500?rpm.
          
    These data are obtained in severe thermodynamical conditions in the cylinder during the cycle and in the bowl at top dead center (TDC).
          
    The time series are acquired at three different test conditions and consisting of succeeding pressures at compression Top Dead Center (TDC) position of one of four cylinders.
          
    更多          
      dead points
    This results in the following advantages: decrease in feding speed in the dead points, increase in feeding speed in the middle of the stroke, and easy adjustment to determine optium feeding.
          
    This is obtained by optimization of a four-bar pedaling mechanism with no "dead points".
          
    A further objective of our review is to demonstrate that the ability to compute the steepest descent direction at degenerate dead points opens a new way for handling degeneracy in active set methods.
          
    A description is given of a system for determining the angles between the upper and lower dead points of the first piston and between the lower dead points of the first and second pistons of an opposed diesel engine.
          
    And, the value for the dead points had the largest value so that be excluded.
          
    更多          


    In this paper a program used for analyzing the kinemetics of spatial RSSR mechanism is provided.The program is designd by means of the computev graphical solution,by which the displacement,velocity and acceleration of the output link can be gotten,and the revolution range of the side links and it's dead points can also be determined.Simultan eously,the kinemetical curves may be gotten from the on-line drafting machine.

    本文提出了一个用于分析空间四连杆机构(RSSR)运动的程序。程序的设计是基于计算机图解法。利用本程序可求得机构从动件的各个位置、速度和加速度;判断主、从动件的回转范围和确定机构的死点位置;同时,还可在联机绘图机上输出机构之运动线图。

    This paper analyses the method of dimensional synthesis of crank-lock ermechanism with dead position .The paper also describes the necessary design program proposed to synthesize this mechanism and examples of the applicationsof this method. The results given here show that this method is both convenient and efficient.

    本文系统地分析了具有死点位置的曲柄摇杆机构的尺度综合方法,着重研充了用程序设计法综合这种机构。文中列表给出了计算实例,采用设计程序所得的计算结果表明,这种方法是方便和有效的。

    A brief analytical procebure is carried out for the synthesis of theplanar 4--bar double--rocker mechanism for coordinating the optimumtransmission characteristics, at the prescribed extreme positions. Takingthe equal deviation of the traosmission angles from the normals of drivenrocker at the two dead--centre positions as the design criterion. Numer-ical examples are provided to confirm that the method to be correct byprogramming and the computer calculating.

    简要分析平面双摇杆机构在极限位置时相应的最佳传动特性。利用两个死点位置时,传动角与摇杆法线的偏差值相等作为设计依据,能得到满意的结果。通过对公式实例编程,上机计算、输出结果证明该方法的正确性。

     
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