阅读说明：本技术 一种离轨帆展开方法及其装置 (Off-rail sail unfolding method and device ) 是由 李晓明 王战辉 邹宇 任维佳 于 2019-11-29 设计创作，主要内容包括：一种离轨帆展开方法及其装置,包括非折叠帆(200)和折叠帆(300),非折叠帆(200)与折叠帆(300)可转动连接以形成驱使星体(100)离轨的离轨帆；折叠帆(300)包括能够在其呈折叠状态时用于折叠帆体的且在其呈展开状态用于支撑帆体的至少一个第一骨架(300a),在折叠帆(300)相对非折叠帆(200)的第一侧边转动至折叠帆(300)与非折叠帆(200)的第一夹角(α)为第一临界值的情况下,至少一个第一骨架(300a)中的一个或多个按照其能够与第一侧边并行的方式开始绕折叠帆(300)转动,并且折叠帆(300)相对非折叠帆(200)的第一侧边继续转动,从而第一夹角(α)继续增大至能够使得折叠帆(300)与非折叠帆(200)形成离轨帆的第二临界值。在发射前,折叠帆(300)就能够折叠好,以尽量减小体积；离轨帆展开状态下有足够大的面质比。(An off-orbit sail unfolding method and an off-orbit sail unfolding device comprise an unfolded sail (200) and a folded sail (300), wherein the unfolded sail (200) and the folded sail (300) are rotatably connected to form the off-orbit sail for driving a star body (100) to be off-orbit; the folded sail (300) comprises at least one first skeleton (300a) able to fold the sail body when it is in the folded state and to support the sail body when it is in the unfolded state, in the case where the folded sail (300) is rotated with respect to a first side of the unfolded sail (200) until a first angle (α) of the folded sail (300) with respect to the unfolded sail (200) is a first threshold, one or more of the at least one first skeleton (300a) starts to rotate around the folded sail (300) in such a way that it can be parallel to the first side, and the folded sail (300) continues to rotate with respect to the first side of the unfolded sail (200), so that the first angle (α) continues to increase to a second threshold enabling the folded sail (300) to form an off-track sail with respect to the unfolded sail (200). Before launching, the folding sail (300) can be folded to reduce the volume as much as possible; the surface-to-mass ratio of the off-rail sail in the unfolded state is large enough.)

An off-orbit sail deployment apparatus comprising an unfolded sail (200) and a folded sail (300), the unfolded sail (200) being rotatably connected to the folded sail (300) to form an off-orbit sail urging a star (100) off-orbit;

it is characterized in that the preparation method is characterized in that,

the folding sail (300) comprises skeletons for folding the sail body when it is in the folded state and for supporting the sail body when it is in the unfolded state, at least one of the skeletons being able to rotate around the non-folding sail (200) in a manner fixed to the folding sail (300) with the folding sail (300) out of its partial constraint, and the remaining part of the skeleton being able to rotate relative to the non-folding sail (200) in a manner able to rotate around the folding sail (300).

Deployment device according to claim 1, characterized in that said folding sail (300) comprises at least one first skeleton (300a) able to be used, in its folded condition, for folding the sail body and, in its deployed condition, for supporting said sail body,

in the case where the folded sail (300) is rotated with respect to the first side of the unfolded sail (200) to a first angle (a) between the folded sail (300) and the unfolded sail (200) of a first critical value, one or more of the first skeletons (300a) begin to rotate around the folded sail (300) in such a way that it can be parallel to the first side, and the folded sail (300) continues to rotate with respect to the first side of the unfolded sail (200), so that the first angle (a) continues to increase to a second critical value that enables the folded sail (300) and the unfolded sail (200) to form the off-track sail.

Deployment device according to claim 1 or 2, characterized in that said folding sail (300) comprises at least one second skeleton (300b) able to be used, in its folded condition, for folding said sail body and, in its deployed condition, for supporting said sail body,

the second frame (300b) is folded inside the first frame (300a) in such a way as to be able to rotate around the first frame (300a) at least partially on the basis of its contact force with the unfolded sail (200), so that, during the rotation of the folded sail (300) with respect to the first side of the unfolded sail (200), the second frame (300b) rotates around the first frame (300a) in such a way as to increase the deployed area of the off-track sail.

Deployment device according to one of the preceding claims, characterized in that during the deployment of said folded sail (300), the rotation speed of said folded sail (300) is greater than or equal to the rotation speed of said first skeleton (300 a).

Deployment device according to one of the preceding claims, characterized in that during the deployment of said folded sail (300), the rotation speed of said folded sail (300) is greater than or equal to the rotation speed of said second skeleton (300 b).

Deployment device according to one of the preceding claims, characterized in that said folded sail (300) comprises a first skeleton II (300a-2) and at least two first skeletons I (300a-1) arranged on either side of said first skeleton II (300a-2),

wherein the first frame II (300a-2) is not rotated around the folded sail (300) at all times, and the at least two first frames I (300a-1) are rotated around the folded sail (300) at the same rotation speed under the condition that the first included angle (alpha) between the folded sail (300) and the unfolded sail (200) is larger than a first critical value, so that the first frame II (300a-2) and the first frame I (300a-1) can form a supporting structure capable of supporting the sail body during the flying of the star body (100) and during the unfolding of the folded sail (300).

Unfolding device according to one of the preceding claims, wherein said first surface (200a) of said non-folded sail (200) has fastening holes (200b) able to cooperate with fastening means (300d) of said first skeleton (300a),

when the folded sail (300) is rotated relative to the first side edge of the unfolded sail (200) until a first included angle (α) between the folded sail (300) and the unfolded sail (200) is smaller than the first threshold value, the fastening body (300d) and the fastening hole (200b) interact with each other, so that the first framework (300a) cannot rotate around the folded sail (300).

Deployment device according to one of the preceding claims, characterized in that, with said folded sail (300) in the folded condition, the second sail surface (300c) and said first sail surface (200a) of said folded sail (300) in the folded condition are opposite each other.

Deployment device according to one of the preceding claims, characterized in that, with said unfolded sail (200) in the fully deployed condition, said second sail surface (300c) in the fully deployed condition forms a windward or windward side with said first sail surface (200 a).

Deployment device according to one of the preceding claims, characterized in that said folded sail (300) has, during its deployment, at least the following intermediate position:

when the first included angle (α) is smaller than a first critical value, a second included angle (β) formed by the first framework I (300a-1) and the second side edge of the unfolded sail (200) is 0 °; or

When the first included angle (alpha) is larger than a first critical value and smaller than a second critical value, the second included angle (beta) is increased along with the increase of the first included angle (alpha) in a mode that the maximum value of the second included angle (beta) is smaller than 90 degrees;

said second angle (β) is equal to 90 ° when said first angle (α) is equal to a second critical value.

Deployment device according to one of the preceding claims, characterized in that the free end of the second frame II (300b-2) inside the first frame II (300a-2) can rotate around the first frame II (300a-2) without touching the non-folded sail (200) during the increase of the second angle (β) with the increase of the first angle (α).

Deployment device according to one of the preceding claims, characterized in that between said non-folded sail (200) and said folded sail (300) there are provided fixing means for maintaining said folded sail (300) in the folded condition during the flight of said star (100).

Deployment device according to one of the preceding claims, characterized in that a fixing mechanism arranged between said non-folded sail (200) and said folded sail (300) is able to automatically disengage the coupling of said non-folded sail (200) with said folded sail (300) in response to an off-track command, so that said folded sail (300) can start to rotate around said first side of said non-folded sail (200).

A folded sail (300) for deployment off-track sail, capable of being deployed and forming an off-track sail with an unfolded sail (200) during rotation around said non-folded sail (200) connected to a star (100), characterized in that,

the folding sail (300) comprises skeletons for folding the sail body when it is in the folded state and for supporting the sail body when it is in the unfolded state, at least one of the skeletons being able to rotate around the non-folding sail (200) in a manner fixed to the folding sail (300) with the folding sail (300) out of its partial constraint, and the remaining part of the skeleton being able to rotate relative to the non-folding sail (200) in a manner able to rotate around the folding sail (300).

An derailed sail comprising an unfolded sail (200) and a folded sail (300), the unfolded sail (200) being rotatably connected with the folded sail (300) to form the derailed sail for driving a star (100) out of orbit; it is characterized in that the preparation method is characterized in that,

the folding sail (300) comprising at least one first skeleton (300a) and at least one second skeleton (300b) able to be used for folding the sail body when it is in the folded condition and for supporting the sail body when it is in the unfolded condition,

the second frame (300b) is folded inside the first frame (300a) in such a way as to be able to rotate around the first frame (300a) at least partially on the basis of its contact force with the unfolded sail (200), so that, during the rotation of the folded sail (300) with respect to the first side of the unfolded sail (200), the second frame (300b) rotates around the first frame (300a) in such a way as to increase the deployed area of the off-track sail.