| 1. | Solution for continuous beam problem using initial parameter equation 用初参数方程求解连续梁问题 |
| 2. | Firstly , the characters of satellite geometrical motion parameters are studied and the equations of doppler parameters are given 本文首先研究了卫星运动参数的特点和由卫星运动参数决定的多普勒参数方程。 |
| 3. | Super quiescent state problem of anti - running device can be solved by applying 3 - bend - quadrature equation and elementary parameter equation 运用力学中的三弯矩方程式和初始参数方程可以解决防溜器的超静定力学问题。 |
| 4. | The experiment shows that by changing the velocity coefficient , the separation of boundary layer on pump vane can be controlled , and the performance of pump is improved and its hydraulic efficiency 实验证明通过改变叶片型线参数方程中的速度系数的取值,可以控制边界层的分离,进而改善泵的性能,提高其水力效率。 |
| 5. | Abstract : based on the arc length formulae of the parallel to the easement curve and its property , this paper gives the parameter equations of the parallel to the easement curve takiing the arc length itself as variable 文摘:基于缓和曲线平行线弧长公式及其性质,给出了缓和曲线平行线以其自身弧长为变量的参数方程。 |
| 6. | At first this paper pointed out a technique of solution about cylinder ' s parameter equation , and also introduced a technique of solution on the parameter equation of sapce curve ' s projection on the flat surface , which made application more convenient 摘要首先给出了柱面参数方程的求法,从而也给出了空间曲线在平面上的投影曲线参数方程的求法,使应用更加方便。 |
| 7. | The wind rates of roots blower with these various kinds of three - lobe circular arc rotor are calculated and comparison between their performances is carried out . it is found that three - lobe rotor with external - internal circular arc and cycloid can produce the largest air volume . comparing the air pulsation produced by cylinder rotor and helix rotor , and proof that the structure of helix rotor can reduce the noise of roots blower 本文给出了罗茨鼓风机三种不同的圆弧转子型线的参数方程(外圆弧及其包络线型、内圆弧及其包络线型、和内外圆弧加摆线型) ,还给出了这三种转子的径距比( r _ a a )的极值,并进行比较,得到:内外圆弧加摆线线型是最优线型这一结论;为降低罗茨风机的噪声,将传统的直叶转子改成扭叶转子。 |
| 8. | Finally , the values of kinematic parameters in typical swimming are estimated for theoretical calculation and computational simulation . based on the kinematic formulation , this paper applies large - amplitude elongated body theory to propulsive performance of undulatory dorsal / median fins and establishes a set of equations for estimation of the propulsive force and the propeller efficiency . the calculations based on experimental data coincide with blake ’ s result in 1980 从波动运动的参数方程出发,本文基于大摆幅伸长体理论对背鳍/背臀鳍波动模式的推进性能进行了分析,推导推进力和推进效率的计算公式,利用实验观测典型运动参数对仿生对象的推进力和推进效率进行了理论估算,结果与blake的计算结果相吻合,从而验证了所建运动学模型的有效性。 |
| 9. | Their properties are discussed in details . furthermore , the relation between basic splines and bsc curves and surfaces is given . the third part is focused on bbc curves and surfaces , which includes the equation and properties of the curves and surfaces , and the relationship between be zier and bbc curves and surfaces 讨论bsc函数的构造、表示及其性质, bsc曲线曲面的表示方法、参数方程以及它们的本质特征, bsc曲线曲面和b样条曲线曲面的关系, bsc曲线曲面的相关算法;第三部分是关于bbc曲线曲面的基本理论。 |
| 10. | Aiming at the problem that solution fem equation set needs too much memory , segregated solotion method has been adopted and for the first in china e l em ent - b y - e lement ( e b e ) has been introduc ed when solving flow field parameter equation sets . ebe technology need not assemble and store the global stiffness matrix , and minish effectively memory requires of solution equation set , moreover it has inherent high parallelity , and advance equation solution 针对求解流场有限元方程组占用计算机内存资源过多、限制求解规模的缺点,采用分离式求解法,在求解流场各参数方程时,在国内首次引入ebe技术, ebe技术不必组集和存储总刚矩阵,能有效地减小了方程组求解时对内存空间的要求,同时ebe技术具有内在的高度并行性,能有效提高方程组的求解速度。 |