天梯系统设计及其力学问题研究进展

Research Progress of Structural Design and Mechanical Problems of Space Elevator

天梯系统能够实现地面与太空之间的高效运输,具有载重大、成本低及环保等优点。针对天梯绳索承受应力大的问题,介绍了近年来国内外提出的天梯新结构,通过合理的设计大幅降低了天梯绳索的应力。对于天梯的振动问题,首先介绍了天梯振动的计算研究现状,通过连续体模型可以提高计算的精度;然后介绍了天梯的振动控制方法,被动控制一般通过天梯绳索和攀爬器的设计实现,而主动控制目前也有初步的研究;最后展望了天梯领域未来的研究方向。

Space elevator enables the efficient transportation between ground and space.It has the advantages of heavy load,low cost and environment friendly.In view of the problem that the rope of the space elevator bears large stress,new structures of the space elevator proposed in recent years at home and abroad were introduced.The stress on the rope of the space elevator could be greatly reduced through reasonable design.As to the vibration problem of the space elevator,the research status of the vibration calculation of the space elevator was introduced.The accuracy of the calculation could be improved through the continuum model.In addition,the vibration control method of the space elevator was also introduced.Passive control could be realized through the design of the space elevator and the climber,while the study of active control was quite preliminary.In the end,the future research direction in the field of space elevator was prospected.