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固体火箭发动机在三轴稳定姿态控制时所产生的非轴向推力已根据 BurnerⅡ、BurnerⅡA 和 Block 5D—1共23发运载火箭顶级的爬高经验数据确定。从25发代表4种不同设计的发动机(三种球形发动机,一种加长的球形发动机)的三轴稳定点火试验中获得了基本数据。附录以表格形式给出了随固体火箭发动机工作时间变化的合成侧向力、横向侧向力的大小、方向、总冲以及滚动力矩的大小、方向和总冲。正文中绘出了各组数据均值和3σ偏差的曲线图。对现有的可用的地面试验的侧向力、滚动力矩大小和总冲等数据进行了鉴定,并与上述的经验数据进行了比较。在全部球形发动机范围内,选用了阿诺德工程发展中心(AEDC)的地面试验数据,其侧向力、滚动力矩和总冲均小于上面所估计的经验数据。在加长的球形发动机范围内,选定的 AEDC 地面试验数据表明,鉴于试验和经验两组数据均只有极小批量,所选定的 AEDC 的侧向力、滚动力矩和总冲的实验数据与发动机的经验数据非常吻合。
The non-axial thrust generated by the solid rocket motor in the three-axis steady attitude control has been determined based on the top-level climbing experience data of 23 launch launchers from BurnerⅡ, BurnerⅡA and Block 5D-1. Basic data were obtained from 25 three-axis steady-state ignition tests representing four differently engine designs (three spherical engines, one extended spherical engine). The appendix presents the size, direction, and total impulse of combined lateral force, lateral lateral force, direction, total impulse, and rolling moment as a function of the working rocket engine operating time in tabular form. The text draws a plot of the mean and 3σ deviations for each group. Data from available available ground tests such as lateral force, rolling moment magnitude and total impulse were identified and compared with the above empirical data. For the entire range of spherical engines, ground test data from the Arnold Center for Engineering Development (AEDC) were selected and their lateral forces, rolling moments and total impulse were all less than the empirical data estimated above. The selected AEDC ground test data for the lengthened spherical engine indicates that experimental data from the selected AEDC lateral force, rolling moment, and total impulse, as well as engine The empirical data is very consistent.