Relaxation Charateristics and Modeling of Cargo Package Binding in Cargo Spacecraft

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Dai, Hailin^1 ; Yuan, Weifeng^1 ; Du, Ruizhao^1 ; Li, Dong^1

Beijing Institute of Spacecraft Environment Engineering, Beijing

100094, China^1

关键词: Calculated values;    Least square methods;    Measured values;    Operation procedure;    Packing tests;    Quartic polynomial;    Tension relaxation;    Tension sensors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/6/062029/pdf
DOI  :  10.1088/1757-899X/392/6/062029

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

At the site of cargo package binding in cargo spacecraft, the structure of the binding belt will produce plastic deformation, slip and fracture over time, which will cause tension relaxation and it's hard to predict the value of tension at steady state. A cargo packing test platform was established. Through which the tension data of sufficient time test are obtained by the serial tension sensor in the binding belt. Based on the Analysis of Therbligs a standard cargo packing operation procedure was developed. And based on the least square method, the tension data of the binding belt are fitted with quartic polynomial and the tension relaxation model is established. Test results show that the calculated values of the binding tension are in good agreement with the measured values, most errors are less than 5%, so that it can be used for predicting that tension relaxation of the binding belt of cargo package.