小型弹箭惯性矩的测定

叙述了三线摆的结构原理 ,介绍了此摆小角与大角摆动周期的计算方法 ,利用三线摆可以测量小型弹箭、子弹头、飞机模型及其他构件的惯性矩。当R/L<1/30、φ≤ 6 0°时 ,该装置的测量精确度可优于 1%。

小型弹箭转动惯量的测量

阐述了对称式三线摆的结构原理 .介绍了三线摆微角度与大角度摆动周期的计算方法 .利用该摆可以测量小型弹箭、弹头、飞机模型及其他构件的转动惯量 .当R/L <1/ 30、φ0 <6 0°时 ,对称式三线摆的测量精度优于 1% .

小型弹箭惯性矩的测定

叙述了三线摆的结构原理 ,介绍了该摆小角与大角摆动周期的计算方法。利用三线摆的结构原理可以测量小型弹箭、子弹头、飞机模型及其他构件的惯性矩。当 R/ L <1 / 30 ,φ0 ≤ 60°时 ,该装置的测量精确度可优于 1 %。

Technology and Market Prospect Analysis of Low Cost Small-lift Launch Vehicles for Small Satellites

The technological development status of new generation low cost small-lift launch vehicles applied to small satellite launch is investigated in this paper. The development trends are summarized, including low cost and rapid response capability, utilization of mature rocket and missile technology, the development of mobile launch technology adopting air-based platforms and use of innovative technology. Moreover, the external power and internal demand of the small-lift launch vehicle are analyzed and the market prospect is forecasted. Finally, proposals for the development of small-lift launch vehicles are put forward, including exploration of the potential of existing rocket and missile technology, development of multi-platform mobile launch technology and further application of innovative technology and ideas.