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Spacecraft quality characteristic comprehensive test board based on spherical air bearing

A technology of air bearings and quality characteristics, applied in the testing of machines/structural components, static/dynamic balance testing, instruments, etc., can solve the problems of low measurement accuracy of the comprehensive test bench for spacecraft quality characteristics, and improve the measurement capability Effect

Inactive Publication Date: 2015-07-08
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Problems solved by technology

[0011] The technical problem solved by the present invention is the problem of low measurement accuracy of the existing comprehensive test bench for mass characteristics of spacecraft. The inventor has cleverly conceived and adopted the measurement principle of the balance to redesign and improve the comprehensive test bench for the moment of inertia of the spacecraft center of mass , significantly improving the centroid measurement accuracy

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  • Spacecraft quality characteristic comprehensive test board based on spherical air bearing
  • Spacecraft quality characteristic comprehensive test board based on spherical air bearing
  • Spacecraft quality characteristic comprehensive test board based on spherical air bearing

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Embodiment Construction

[0027] The structure of the spherical air bearing-based spacecraft quality characteristic comprehensive test bench of the present invention will be described in detail below with reference to the accompanying drawings, but this description is only exemplary and is not intended to limit the protection scope of the present invention.

[0028] Such as figure 1As shown, the device structure of the comprehensive test bench for the quality characteristics of spacecraft based on spherical air bearings of the present invention is displayed, wherein the structure of the test bench includes two parts: a mechanical system and a measurement system, and the mechanical system mainly includes scales on the circumference. 3. The workbench 16, spherical air bearing 15, torsion bar spring 12, and torsion driving device include driving cylinder 13, arm extension rod 14, cylindrical air bearing 11, torsion locking device 10, moment balance device 7, air The floating platform 9 and the workbench 1...

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Abstract

The invention discloses a spacecraft quality characteristic comprehensive test board based on a spherical air bearing. The test board comprises devices such as the spherical air bearing, a torsional pendulum driving device, a torsion bar spring, a torque balancing device, a clamp position locking device, a cylindrical air bearing and the like. The centroid position of a spacecraft is measured with a torque balancing method, and the rotary inertia of the spacecraft is measured with an air floatation torsional pendulum method. The device can measure the transverse centroid and the vertical axis rotary inertia simultaneously, and the measuring accuracy is improved by one time compared with a prior device.

Description

technical field [0001] The invention belongs to the technical field of spacecraft assembly testing, and in particular relates to a comprehensive testing device for spacecraft quality characteristic testing. Background technique [0002] Quality characteristics are a series of mechanical characteristic parameters related to the mass of an object. Quality characteristics include mass, center of mass position, moment of inertia and product of inertia relative to a given coordinate system, which are the basic inherent characteristic parameters describing the mechanical characteristics of products. In the development of spacecraft, it is necessary to determine these parameters through experiments, and make necessary adjustments to these parameters according to the design requirements. [0003] In the prior art, Richard Boynton discloses a comprehensive test device for spacecraft mass characteristics in documents such as "A New High Accuracy Instrument for Measuring Moment of Ine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M1/10G01M1/12
Inventor 陈勉杜晨徐在峰王洪鑫赵科杨洋溢
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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