Five-freedom-degree initiative magnetic-suspension inertially stabilized platform
An inertial stable platform and magnetic levitation technology, which is applied in the fields of basic surveying and mapping and aerial remote sensing, can solve the problems of volume, load/weight ratio, lack of systematic precision, difficulty in further improving precision, and increased friction of mechanical bearings, etc., to achieve a compact structure , large torque, and the effect of improving the overall rigidity
Inactive Publication Date: 2012-12-12
BEIHANG UNIV
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Problems solved by technology
[0003] In the existing aviation inertial stabilization platform design, however, there are many deficiencies in the existing inertial stabilization platform, which are generally manifested as systematic deficiencies in volume, load/weight ratio, accuracy, etc., that is, it is difficult to find a combination of the above advantages. The product
Due to commercialization and other factors, foreign products with small size and light weight tend to have low precision and low bearing capacity, while products with high precision often have large volume and weight; PAV30 an
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[0036] Such as figure 1 , 2 , 3, 4, 5, 6, 7, 8, 9, and 10, the present invention is a five-degree-of-freedom active magnetic suspension inertial stabilization platform, which consists of a platform frame system, a drive system, a shock absorption system, a magnetic suspension support system, Inertial measurement system, rotation angle measurement system; where 0XYZ is the space coordinate system of the platform, X direction is the flight direction of the aircraft, Y direction is the wing direction, and Z direction is perpendicular to the earth; the platform frame system is bottom plate 101, The base 102, roll frame 103, pitch lower frame 104, pitch frame 105, azimuth lower frame 106, and azimuth frame 107 are composed; when the inertial stabilization platform is working, the camera 108 is placed on the azimuth frame 107; the rotation axis of the roll frame 103 Along the flight direction of the aircraft, it is used to isolate the roll angle movement of the aircraft; the rotat...
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A five-freedom-degree initiative magnetic-suspension inertially stabilized platform comprises a platform frame system, a drive system, a shock reducing system, a magnetic-suspension support system, an inertial measurement system and a turning angle measurement system. The drive system achieves isolation of angular motion of an airplane according to a control instruction. The shock reducing system isolates high-frequency coil vibration of the airplane. The magnetic-suspension support system achieves five-freedom-degree full-initiative suspension of a direction frame, isolates low frequency vibration of airplane, reduces friction, improves carrying capacity and can initiatively control torsion of the direction frame and effectively improve the stabilizing precision of the platform. The inertial measurement system and the turning angle measurement system monitor platform angular motion information caused by airplane angular motion. The five-freedom-degree initiative magnetic-suspension inertially stabilized platform achieves application of an initiative magnetic-suspension technology in the inertially stabilized platform, effectively isolates the airplane angular motion and the vibration, improves the carrying capacity and the stabilizing precision and is suitable for aerial remote sensing, target tracking and the like.
Description
technical field [0001] The invention belongs to the technical field of aviation remote sensing, and relates to a five-degree-of-freedom magnetic levitation inertial stable platform installed inside an aircraft, isolating the angular motion and vibration of the aircraft, and realizing the load perpendicular to the ground. It is suitable for the fields of aviation remote sensing, basic surveying and mapping, etc. Vehicle, ship and other servo tracking. Background technique [0002] The aerial remote sensing three-axis inertial stabilization platform is one of the key equipment for airborne earth observation. Its function is to support the imaging load and isolate the attitude angle movement and external disturbance of the flight carrier in three directions, so that the visual axis of the imaging load can always track in the inertial space. And perpendicular to the local level, improving imaging resolution. However, due to the limitation of the aviation application environment...
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Inventor 房建成周向阳张钰王春娥刘刚钟麦英张建斌李贝
Owner BEIHANG UNIV
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