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Appl. Sci. 2018, 8(1), 104; https://doi.org/10.3390/app8010104

Novel Measurement Method for Determining Mass Characteristics of Pico-Satellites

School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, China
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Received: 7 December 2017 / Revised: 6 January 2018 / Accepted: 10 January 2018 / Published: 15 January 2018
(This article belongs to the Section Mechanical Engineering)
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Abstract

The centroid and moment of inertia directly affect the dynamic characteristics of aircraft, and accurate mass characteristic measurements are crucial to adequately control aircraft attitude. This paper proposes a new measurement method for determining aircraft mass characteristics that can improve measurement precision when used in regard to pico-satellites. The measurement system is designed according to the principles of three-point measure and constant torque. The feasibility of the test method of this study for determining the mass characteristics is proved by using a dynamic simulation and an experimental analysis method. Through a number of standard workpiece tests, the deviation of the measurement system and effective compensation methods of the mass characteristics are obtained. The measurement system and compensation methods are applied to measure the mass characteristics of a pico-satellite, which can be detected by only one time clamping. The measurement system proposed herein can effectively improve measurement precision, as it was found that the accuracy of the centroid and the moment of inertia of the pico-satellite are less than 1 mm and 1.5 × 10−2 kgm2, respectively. The proposed measurement system also has many advantages, such as a simple operation, high efficiency, small volume, and low cost. View Full-Text
Keywords: pico-satellite; mass characteristics; centroid; moment of inertia pico-satellite; mass characteristics; centroid; moment of inertia
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Teng, L.; Yang, H.; Jin, Z. Novel Measurement Method for Determining Mass Characteristics of Pico-Satellites. Appl. Sci. 2018, 8, 104.

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