Design and Development of Miniature Measuring Instrument for Parachute Cords Dynamic Load for Stepless Parachute Opening

Wei Liang; Xin Zhao; Pengpeng Wu; Yuxin Li; Shuai Lv

doi:10.3390/s24196232

Sensors (Sep 2024)

Design and Development of Miniature Measuring Instrument for Parachute Cords Dynamic Load for Stepless Parachute Opening

Wei Liang,
Xin Zhao,
Pengpeng Wu,
Yuxin Li,
Shuai Lv

Affiliations

Wei Liang: College of Mechanical and Electrical Engineering, Changchun University of Science and Technology, Changchun 130022, China
Xin Zhao: College of Mechanical and Electrical Engineering, Changchun University of Science and Technology, Changchun 130022, China
Pengpeng Wu: College of Mechanical and Electrical Engineering, Changchun University of Science and Technology, Changchun 130022, China
Yuxin Li: College of Mechanical and Electrical Engineering, Changchun University of Science and Technology, Changchun 130022, China
Shuai Lv: College of Mechanical and Electrical Engineering, Changchun University of Science and Technology, Changchun 130022, China

DOI: https://doi.org/10.3390/s24196232
Journal volume & issue: Vol. 24, no. 19
p. 6232

Abstract

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Spacecraft recovery technology is crucial in the field of aerospace, in which the parachute plays a key role in slowing down the descent speed of the spacecraft and realizing a smooth landing. In order to construct a dynamically adjustable parachute deployment strategy, it is necessary to measure the parachute dynamic load accurately in real-time. However, the existing sensor measurement scheme makes it difficult to meet the measurement requirements due to its large structure and complex wiring. In order to meet the current demand for real-time measurement of parachute cords dynamic load, a miniature measuring instrument is designed. According to the function and technical requirements of the miniature measuring instrument, the hardware modules of the acquisition system are selected and designed, and the integration debugging and performance optimization of the microcontroller module, A/D sampling module, signal acquisition circuit, and power supply module are carried out. The software of the parachute cords tension acquisition system based on the miniature measuring instrument is developed. The Load Cell is modeled by using SolidWorks 2022 and statically analyzed by using Ansys 2022 R1 Workbench finite element analysis software. Then the final structure of the Load Cell and the pasting position of the strain gauge are determined through the results analysis as well as experimental verification. The hardware module of the signal acquisition system for the miniature measuring instrument is then encapsulated. The force value of the miniature measuring instrument is calibrated and tested many times by using the microcomputer-controlled electronic universal testing machine. The experimental results show that the designed miniature measuring instrument has accurate data, strong stability, and good real-time performance, which meets the demand for real-time accurate measurement of miniature measuring instruments, and can provide reliable data for parachute cords parameter validation and stepless unfolding design.

Published in Sensors

ISSN: 1424-8220 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology
Website: http://www.mdpi.com/journal/sensors

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