| 摘要 |
FIELD: space engineering; other industries; production of the stable-sized platforms. ^ SUBSTANCE: the invention is pertaining to the load-carrying structures made out of the laminated polymeric composite materials and may be used in the high-precision space and ground equipment, for example, as the support for the optical instruments, the antenna systems and the measuring systems. The presented platform is made in the form of the plane annular or circular centrally-symmetric board and contains the encasings made out of the layers of the fibrous material impregnated with the polymeric binding, the cell-type filler placed between the casings and the attachment points disposed with the equal angle pitch. Each layer of the casings consists of the sectors docked among themselves with the equal central angle. Quantity of the sectors in each layer is equal or multiple to the number of the attachment points. In each sector of one layer the filaments are oriented at the equal angle concerning the central axis of the sector. T sectors of each subsequent layer are shifted concerning the sectors of the previous layer at the angle equal to the half of the central angle of the sector. In each sector of the same layer the filaments may be oriented at the angle of 90° to the central axis of the sector. There may be present the layers, where the filaments are oriented at the angle of 0° to this axis. The technical result of the invention is to ensure the control over the thermal deformation of the platform with the purpose to reach the given accuracy of positioning of the attachment points on it at fulfillment of the strength and rigidity requirements to its design. ^ EFFECT: the invention ensures the control over the thermal deformation of the platform with the purpose to reach the given accuracy of positioning of the attachment points on it at fulfillment of the strength and rigidity requirements to its design. ^ 3 cl, 3 dwg |
