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ERIDAN 探空火箭在工厂制造阶段,需要弄清楚各部段制造和装配公差所造成的不对称性,是否能对火箭和有效载荷的性能产生明显的影响。研究的范围包括命中偏差、滚动速率和飞行载荷。对结构不对称性影响的研究主要是根据飞行试验,特别是那些试验和技术性发射结果的精确分析进行的。通过对火箭设计中选用的结构不对称性理论值与飞行试验结果的比较,为我们证实了核计算方法的完善性,并且在没有过多增加费用的情况下,采用了必要的工艺措施。这样,保持目前现实的和满意的结构不对称标准偏差值,并用于今后科学探测任务是可能的。
The ERIDAN sounding rocket needs to be made aware of the asymmetry caused by manufacturing and assembly tolerances in each segment during the manufacturing phase of the ERIDAN sounding rocket and can have a significant impact on the performance of the rocket and payload. The scope of the study includes hits deviations, roll rates and flight loads. The study of the effects of structural asymmetry is based primarily on the accurate analysis of flight tests, particularly those of experiments and technical launch results. By comparing the theoretical value of structural asymmetry used in the design of the rocket with the flight test results, we prove the perfection of the nuclear calculation method and adopt the necessary technological measures without excessive cost increase. In this way, it is possible to maintain the current realistic and satisfactory standard deviation of structural asymmetry and to use it for future scientific exploration missions.