New flexible cable stiffness determination method and system

A flexible cable and measurement method technology, applied in the field of composite control, can solve problems such as no data collected, no explanation or report found, etc.

Active Publication Date: 2022-07-26
SHANGHAI SATELLITE ENG INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[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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  • New flexible cable stiffness determination method and system
  • New flexible cable stiffness determination method and system
  • New flexible cable stiffness determination method and system

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Embodiment Construction

[0089] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the inventive concept. These all belong to the protection scope of the present invention.

[0090] Aiming at the requirements for power supply and information exchange between the two-cabin non-contact "Double-Super" satellite platforms, the purpose of the present invention is to provide a novel method for measuring the stiffness of flexible cables.

[0091] According to a novel flexible cable stiffness determination method provided by the present invention, comprising:

[0092] Step M1: Offset the gravity of the motion cabin by means of air flotation, simulate a weightless environment, and realize tw...

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Abstract

The invention provides a new type of flexible cable stiffness determination method and system, including: simulating a weightless environment; in the weightless environment, continuously exciting a motion cabin through a non-contact actuator; establishing a motion monitoring system to measure the relative force of the motion cabin relative to the fixed cabin. Rotation angle and displacement; establish motion cabin dynamics model, output periodic excitation dynamic information; separate periodic excitation motion information and aperiodic excitation motion information in measurement information according to motion separation algorithm; establish stable controller to ensure motion cabin Do not collide with the fixed cabin during the movement; establish a force and moment distribution model of the non-contact actuator, and output the steady-state control force and moment and periodic excitation to the movement cabin; collect the force and moment of the cable end of the fixed cabin, and solve it according to the spring model The flexible cable stiffness coefficient matrix is ​​calculated; the invention provides a reference basis and a calculation model for the selection and interference analysis of the subsequent double-supersatellite model cabin cables.

Description

technical field [0001] The invention relates to a composite control technology with ultra-high pointing accuracy and ultra-high stability (double-super) satellite platform load compartment, in particular to a novel flexible cable stiffness determination method and system. Background technique [0002] The requirements for attitude and pointing accuracy and stability of future advanced spacecraft are two orders of magnitude higher than the current level. Traditionally, the fixed-connection design of the load and the platform is used, and the dynamic characteristics of the two are deeply coupled, which makes it difficult to achieve the double-overload index of the load. Double super indicators are difficult to achieve. [0003] The "Double Super" satellite platform breaks the traditional fixed design and adopts non-contact, high-precision, time-delay displacement sensors to separate the load (cabin) where only quiet parts are installed from the platform (cabin) where moving p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M5/00
CPCG01M5/0025
Inventor 洪振强栗双岭张伟张健边志强袁双
Owner SHANGHAI SATELLITE ENG INST
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