A plate type main force transmission connection device
A connecting device and plate-type technology, which is applied to the docking device, transportation and packaging of aerospace vehicles, and aerospace equipment, etc., can solve the problems of inability to guarantee local stiffness and strength, achieve large loads, reduce stress concentration, and enhance shearing force. Effect
Inactive Publication Date: 2012-10-24
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology
However, as the load increases to a certain extent, the current single-point connection method cannot guarantee sufficient local stiffness and strength.
Method used
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[0019] The present invention will be further elaborated below in conjunction with the accompanying drawings and embodiments.
[0020] The main components of the present invention include a docking ring 1 , a platform bottom plate 8 , bottom plate screws 3 , partitions 2 , angle piece-shaped main force transmission connectors 16 , and partition screws 18 .
[0021] docking ring 1 as Figure 5 As shown, it is an annular structure with an "I" shape in cross section, and a butt ring hole 10 is provided on the inner and outer flanges on its upper side. In the original technical scheme, the partition plate 2 and the docking ring 1 are only a single point (one screw, see figure 1 ) connection will inevitably form a large stress concentration on the upper end face of the butt ring. Only at each joint between the partition plate 2 and the butt ring 1, the stress concentration on the upper end surface of the butt ring can be effectively reduced by using multi-point connections. There...
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The invention belongs to the technical field of satellite structure design, and discloses a satellite main load-bearing structure composed of a honeycomb sandwich plate and a docking ring, which can effectively improve the stress distribution, resolve the contradiction of force transmission concentration, and adapt to the force transmission of the current domestic small satellite load need. The device includes a docking ring with inner and outer flanges, a platform bottom plate, bottom plate screws, a partition, and two corner piece-shaped main force transmission connectors, partition screws, and a docking ring hole on the docking ring. ; The angle piece-shaped main force transmission connector includes a bottom edge and an arc edge, and is provided with a vertical rib, and the bottom edge is provided with a bottom edge hole, and the arc edge is provided with an arc edge hole; two main force transmission The arc-shaped side of the connector clamps the partition relatively, and the contact surface between the arc-shaped side and the partition adopts the connection form of glue joint, and the partition screw connects the two angle-shaped main force transmission connectors with the partition. , the bottom plate screws are fixedly connected to the butt ring, the main force transmission connector and the bottom plate.
Description
technical field [0001] The invention relates to the technical field of satellite structure design, in particular to the technical field of plate structure satellite main force transmission connection. Background technique [0002] The satellite load of the main load-bearing structure composed of honeycomb sandwich panels and docking rings is mainly transmitted through the diaphragm. Limited by the configuration, the force transmission from the diaphragm to the butt ring can only be carried out through several concentrated points where the diaphragm and the butt ring intersect. Therefore, the configuration determines that the connection between the root of the diaphragm and the flange of the butt ring suffers the most serious stress concentration, which is the key to the structural design. Typical main force transmission structure connection see attached figure 1 , is composed of a partition plate 2, a platform bottom plate 8, a docking ring 1 and a platform bottom plate sc...
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IPC IPC(8): B64G1/22B64G1/64
Inventor 李翔屠永刚张晓莉周晨白照广
Owner BEIJING INST OF SPACECRAFT SYST ENG