| 1. | Research of initial disturbance of rocket in lagrange 拉格朗日方法建模下的火箭弹起始扰动研究 |
| 2. | The eulerian - lagrange model can predict particle tracks ; it is an effective model to study fluid - particle swirling flows 欧拉一拉格朗日方法能反映颗粒运动轨轨迹,是一种比较有用的研究方法。 |
| 3. | Compared with the original elm , the numerical experiments show that the improved elm has lower numerical dissipation , higher accuracy , and better performance over steep topography 数值试验表明,改进后的欧拉拉格朗日方法在水深变化剧烈处比改进前的数值耗散更小、精度更高和表现更合理。 |
| 4. | In this paper , the governing differential equations of double pendulum is established with the lagrange methods , the stability margin of corresponding linear equations are obtained by the multiple scale method 采用拉格朗日方法建立参数激励双摆的控制微分方程,通过多尺度法对其线性化方程进行分析,获得稳定性边界。 |
| 5. | In this paper the model of flexible manipulator is firstly studied . to design and analyze the system easily , reasonable assumption and approximation on the model are used . the closed dynamic equation is derived using lagrangian approach 为便于系统分析与设计,对模型进行了合理假设和近似处理,进而利用拉格朗日方法推导出了柔性臂系统动力学方程的封闭形式。 |
| 6. | To grasp dynamic character of the 2rrr parallel platform and to exert the advantage of parallel machine in sculptor well , dynamics model of the platform is founded by using lagrangian approach and dynamic analysis are made primarily ) rr型并联平台的动态特性、使并联机器的优点得以在雕刻机中充分发挥,本文还应用拉格朗日方法建立了机构的动力学模型,并进行了初步的动力学分析。 |
| 7. | Based on one dimension flow theory and lagrange method , the correlation of speeding rate of particles under gas flow drag with the size of particles and the length of laval nozzle used for the gas and solid two - phase separation test apparatus was studied 摘要采用一元流动理论和拉格朗日方法,研究了用于气、固两相分离试验装置的缩放喷管内,被气流拖曳的颗粒加速率与颗粒大小和缩放喷管长度的关系。 |
| 8. | The computation results showed that the multi _ body system model was accuracy , the fuzzy _ pid compound control scheme was compact , both was just combined well , and this system had a good performance on improving the vehicle ' s ride comfort characteristics 计算结果表明,以多刚体系统动力学的拉格朗日方法所建数学模型仿真精度高,计算效率高,方法可行,多刚体系统动力学模型同模糊pid复合控制策略结合较好,是一个行之有效的进行综合仿真和优化控制的系统。 |
| 9. | Meanwhile some detailed researches are done on the deviation of gas in different load in tangentially - fired furnace which affords some significant directions in theory on the boiler ' s safely operation . simple method is employed in flow field prediction ; lagrangian method is used in the flow of particle and the radiant heat - transfer is simulated in monte carlo method . through summarizing these methods , the author develops a general program of large - scale power station with a friendly interface and post - disposal 本文对模拟炉内过程所采用的方法和模型进行了概括和总结,在此基础上综合这些方法和模型,如流场的计算采用的是simple方法,而颗粒相流动则是采用拉格朗日方法进行研究,辐射换热采用蒙特卡洛方法等,并且以这些模型和方法为基础,开发了大型电站锅炉的通用程序,并包括友好的界面和后处理。 |
| 10. | In a three - dimensional ocean model with curvilinear coordinates horizontally and a coordinate vertically , the adapted grids at a layer for interpolation in the eulerian - lagrangian method ( elm ) is unreasonable over steep topography , because the vertical distance between the adjacent grids in the same a layer is too large 摘要在水平曲线坐标和垂向坐标的三维海洋模式下,欧拉拉格朗日方法的插值如果在-面相邻网格之间进行,那么在水深变化剧烈处,由于-面相邻网格之间的垂向距离较大,插值依据会显得较不合理。 |