A Compensation Method for Centrifugal Deformation of Rotor with Complicated Shape Based on Adverse Field Force Loading
A deformation compensation and inverse field force technology, applied in the direction of rotating gyroscope, etc., can solve the complex problem of rotor centrifugal deformation compensation, no general centrifugal deformation compensation method is proposed, and the magnetic levitation control sensitive gyro rotor structure is complex, etc., to achieve convenient compensation. Effect
Active Publication Date: 2018-03-16
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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Both documents analyzed the centrifugal deformation of the rotor from the perspective of simulation, and did not propose a feasible general centrifugal deformation compensation method, and still cannot achieve effective compensation for the centrifugal deformation of the rotor
[0004] The structure of the new type magnetic levitation control sensitive gyro rotor is complicated. Its structure is spliced by two solid spherical segments with different radii, and the spherical segment body has a more complicated structural groove. The ideal spherical deformation theory in Electrostatic Gyro Dynamics is described, and the problem of rotor centrifugal deformation compensation is more complicated
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[0045] specific implementation plan
[0046] The specific implementation process of the present invention will be described below by taking the centrifugal deformation error compensation process of the novel magnetic levitation control sensitive gyroscope as an example.
[0047] figure 1 It is a flow chart of the method for compensating the centrifugal deformation of a rotor with a complex shape based on reverse field force loading shown in the present invention, and its specific implementation process is as follows:
[0048] Step (1), constructing the ideal geometric structure model of the rotor in the working state in the simulation software Ansys environment. Figure 2a The ideal geometric structure model of the magnetic levitation control sensitive gyro rotor constructed for . The rotor is composed of two solid spherical segments with axial and radial radii r and R respectively, and R>r. Among them, the spherical segment of the radial structure includes an annular groove ...
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The invention relates to a centrifugal deformation compensation method of complex-shaped rotors on the basis of reversed-field force loading, which comprises the following steps: (1) establishing an ideal geometric model to the rotor in Ansys simulation software under a high-rotation-speed work situation; (2) applying a high-gradient force field to the rotor, wherein the direction of the force field towards the rotation axis of the rotor, namely, a reversed-field force is applied to the rotor; (3) performing simulation calculation; (4) obtaining geometric parameters of the rotor after deformation under the reversed-field force loading conditions; (5) designing the geometric structure of the rotor according to the deformation parameters to enable the geometric shape of the rotor having the new structure to be an ideal shape under the work conditions, namely, centrifugal deformation compensation to the rotor is achieved. The invention belongs to the field of computer aided design and manufacturing. The method can be used for the centrifugal deformation compensation to high-precision gyrorotors and can increase the measurement precision of the gyrorotors.
Description
technical field [0001] The invention relates to a method for compensating the centrifugal deformation of a rotor with a complex shape based on reverse field force loading, which is suitable for the compensation of the centrifugal deformation of a rotor with a complex shape when it rotates at high speed, especially the compensation for the centrifugal deformation of a high-precision gyro rotor such as a suspended spherical rotor. technical background [0002] Superconducting magnetic levitation gyroscope and electrostatic levitation gyroscope are the two kinds of inertial components with the highest precision internationally recognized at present, and their precision has reached 10 -11 ° / hour and 10 -6 ° / hour. In order to improve the measurement accuracy of the gyroscope as much as possible, the above-mentioned gyroscopes all adopt non-contact rotor suspension technology, and the suspension rotors are spherical enveloped hollow structures. The centrifugal deformation of the...
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IPC IPC(8): G01C19/06
CPCG01C19/06
Inventor 任元辛朝军蔡远文许国锋夏长峰王琳静缪存孝
Owner PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV