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Satellite Sensitive Load System and Its Magnetic Suspension Nonlinear Vibration Isolator and Design Method
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A design method and technology of sensitive load, applied in the direction of the guidance device of space navigation vehicle, etc., can solve the problems such as no description or report, and data has not been collected, and achieve the effect of good broadband vibration isolation performance, easy implementation and simple structure
Active Publication Date: 2016-08-17
SHANGHAI SATELLITE ENG INST
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[0005]
At present, there is no description or report of the similar technology of the present invention, and no similar data at home and abroad have been collected yet.
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Embodiment 1
[0046] Such as figure 1 As shown, this embodiment provides a magnetic levitation nonlinear vibration isolator, including three permanent magnets, the three permanent magnets are coaxially arranged in series, wherein the permanent magnets at both ends are fixed, and the permanent magnets in the middle are only along the Axial free movement.
[0047] Further, the permanent magnet located in the middle is provided with an output rod along the axial direction.
[0048] Further, it also includes an outer casing, the three permanent magnets are packaged inside the outer casing, and the output rod protrudes from the outer casing.
[0049] Further, the output rod is connected with the outer housing through a linear bearing, which is used to ensure that the output rod only moves along the axial direction.
[0050] Further, the three permanent magnets are cylindrical permanent magnets, and the permanent magnets at both ends have the same shape and size.
[0051] The design method of ...
Embodiment 2
[0085] This embodiment provides a satellite sensitive load system, including a satellite platform, a satellite sensitive load, and a vibration isolation system installed between the satellite platform and the satellite sensitive load, and the vibration isolation system includes several above-mentioned maglev nonlinear vibration isolators .
[0086] Further, the satellite sensitive load is connected to the magnetic levitation nonlinear vibration isolator through an output rod, and the satellite platform is fixedly connected to the magnetic levitation nonlinear vibration isolator.
[0087] Further, the magnetic levitation nonlinear vibration isolator is one, and the output rod is connected to the external housing through a linear bearing, which is used to ensure that the magnetic levitation nonlinear vibration isolator only moves along the axial direction, forming a single degree of freedom vibration isolation system.
[0088] Further, there are multiple magnetic suspension non...
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technical field [0001] The invention relates to the technical field of vibration isolation of satellite loads, in particular to a satellite sensitive load system, a magnetic levitation nonlinear vibration isolator and a design method thereof. Background technique [0002] With the development of aerospace technology, the performance and accuracy of imaging payloads and high-resolution optical payloads continue to improve, and the high-precision and high-stability payloads carried by satellites have higher and higher requirements for the stability of satellite platforms. The impact can no longer be ignored, and vibration isolation measures must be taken to ensure the normal operation of the satellite payload. [0003] The main vibrations of spacecraft are roughly divided into two categories: one is the frequency range of 30-250 Hz or more, and the characteristic is that the amplitude of the excitation is small, which is called high-frequency small-amplitude vibration; the sec...
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