This paper reviews solar sail trajectory design and dynamics,attitude control,and structural dynamics.Within the area of orbital dynamics,methods relevant to transfer trajectory design and non-Keplerian orbit generati...This paper reviews solar sail trajectory design and dynamics,attitude control,and structural dynamics.Within the area of orbital dynamics,methods relevant to transfer trajectory design and non-Keplerian orbit generation are discussed.Within the area of attitude control,di erent control strategies,including utilisation of solar radiation pressure and conventional actuators,are discussed.Finally,the methods of modelling structural dynamics during and after deployment are discussed,before considering possible future trends in developing of solar sailing missions.展开更多
An increasing number of objects are being launched into low-Earth orbit.Consequently,to avoid the possibility of future in-orbit collisions space object removal techniques are receiving attention.As one of the most de...An increasing number of objects are being launched into low-Earth orbit.Consequently,to avoid the possibility of future in-orbit collisions space object removal techniques are receiving attention.As one of the most developed techniques,drag augmentation is increasingly being considered as an option for end-of-mission removal of objects from low-Earth orbit.This paper highlights a common misconception around drag augmentation:although it can be used to reduce de-orbit time,when used inappropriately it can increase the volume swept by an object and,thus,increase the occurrence risk of collision with another space object.Knowingly ignoring this increased risk of collisions could leave spacecraft operators,and consequently their responsible state party,open to liability risk.By investigating the volume swept and de-orbit lifetime,a strategy of delayed deployment is proposed as a compromise between reducing volume swept and time to de-orbit.However,this increases system complexity and,likely,cost.展开更多
基金This work was supported by the National Natural Science Foundation of China(Grant No.117722167 and 11822205).
文摘This paper reviews solar sail trajectory design and dynamics,attitude control,and structural dynamics.Within the area of orbital dynamics,methods relevant to transfer trajectory design and non-Keplerian orbit generation are discussed.Within the area of attitude control,di erent control strategies,including utilisation of solar radiation pressure and conventional actuators,are discussed.Finally,the methods of modelling structural dynamics during and after deployment are discussed,before considering possible future trends in developing of solar sailing missions.
基金This work received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No.687295.
文摘An increasing number of objects are being launched into low-Earth orbit.Consequently,to avoid the possibility of future in-orbit collisions space object removal techniques are receiving attention.As one of the most developed techniques,drag augmentation is increasingly being considered as an option for end-of-mission removal of objects from low-Earth orbit.This paper highlights a common misconception around drag augmentation:although it can be used to reduce de-orbit time,when used inappropriately it can increase the volume swept by an object and,thus,increase the occurrence risk of collision with another space object.Knowingly ignoring this increased risk of collisions could leave spacecraft operators,and consequently their responsible state party,open to liability risk.By investigating the volume swept and de-orbit lifetime,a strategy of delayed deployment is proposed as a compromise between reducing volume swept and time to de-orbit.However,this increases system complexity and,likely,cost.
