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Appl. Sci. 2017, 7(11), 1168; doi:10.3390/app7111168

Structural Performance Optimization and Verification of an Improved Thin-Walled Storage Tank for a Pico-Satellite

School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, China
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Received: 16 October 2017 / Revised: 7 November 2017 / Accepted: 9 November 2017 / Published: 14 November 2017
(This article belongs to the Section Mechanical Engineering)
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Abstract

This paper presents an improved mesh storage tank structure obtained using 3D metal printing. The storage tank structure is optimized using a multi-objective uniform design method. Each parameter influencing the storage tank is considered as the optimization factor, and the compression stress ( σ ), volume utilization ratio ( v ), and weight ( m , are considered as the optimization objectives. Regression equations were established between the optimization factors and targets, the orders of the six factors affecting three target values are analyzed, and the relative deviations between the regression equation and calculation results for σ , v , and m were 9.72%, 4.15%, and 2.94%, respectively. The optimization results showed that the regression equations can predict the structure performance of the improved storage tank, and the values of the influence factors obtained through the optimization are effective. In addition, the compression stress was improved by 24.98%, the volume utilization ratio was increased by 26.86%, and the weight was reduced by 26.83%. The optimized storage tank was developed through 3D metal printing, and the compressive stress was improved by 58.71%, the volume utilization ratio was increased by 24.52%, and the weight was reduced by 11.67%. View Full-Text
Keywords: pico-satellite; propulsion system; multi-objective optimization; storage tank; 3D metal printing pico-satellite; propulsion system; multi-objective optimization; storage tank; 3D metal printing
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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.; Jin, Z. Structural Performance Optimization and Verification of an Improved Thin-Walled Storage Tank for a Pico-Satellite. Appl. Sci. 2017, 7, 1168.

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