| 第三宇宙速度ν_3及获得ν_3所需的火箭推进剂量与地球在公转轨道上的位置的关系 |
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| 引用本文： | 徐天华. 第三宇宙速度ν_3及获得ν_3所需的火箭推进剂量与地球在公转轨道上的位置的关系[J]. 青岛大学学报(自然科学版), 1997, 0(3) |
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| 作者姓名： | 徐天华 |
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| 作者单位： | 青岛大学物理系!青岛 266071 |
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| 摘 要： | 计算结果表明，从地球在公转轨道上的近日点到远日点，第三宇宙速度的值单调增加，获得相应的速度值所需要的火箭推进剂量的增加幅度约达１０％，从而在理论上指出了这一问题中减轻火箭重量的一个有效途径是尽可能接近近日点发射．
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| 关 键 词： | 第三宇宙速度 地球公转轨道 火箭推进剂 |
THIRD COSMIC SPEED V_3 AND RELATION BETWEEN QUANTITY OF ROCKET PROPELLANT NEEDED TO OBTAIN V_3 AND THE EARTH'S POSITION ON ITS ORBIT |
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| Xu Tianhua. THIRD COSMIC SPEED V_3 AND RELATION BETWEEN QUANTITY OF ROCKET PROPELLANT NEEDED TO OBTAIN V_3 AND THE EARTH'S POSITION ON ITS ORBIT[J]. Journal of Qingdao University(Natural Science Edition), 1997, 0(3) |
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| Authors: | Xu Tianhua |
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| Abstract: | This calculation shows that the value of the third cosmic speed increases monotonously from perihelion to aphelion and the increase range of propellant quantity needed to obtain corresponding speed reaches about 10%.These results point out theoretically that an effectual way to reduce rocket weight in this conditon is to launch as near to the sun as possible, |
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| Keywords: | third cosmic speed earth's orbit rocket propellant |
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