测试科学与仪器2025，Vol.16Issue(3)：341-349,9.DOI:10.62756/jmsi.1674-8042.2025033
大型飞行器质量质心测量装置及方法研究
Measurement device and method for mass and centroid of large aircraft
摘要
Abstract
The precise acquisition of the quality characteristic parameters of large aircraft directly affects its performance characteristics.For large aircrafts such as missiles and rockets with internal fillings,traditional measurement methods involving large-angle tilting or rotation may pose safety risks.In light of the characteristics of large aircraft and in combination with existing measurement methods,we design a mass and centroid measurement method based on four-point support and small-angle tilting,and develop a set of mass and centroid testing system.This method obtains the intersection point of the gravity action line in the product coordinate system through coordinate transformation in two postures,thereby obtaining the three-dimensional centroid of the aircraft.We first elaborate on the principle of this method in detail,then introduce the composition of the equipment,and analyze the structural stress of key components.Finally,experimental verification and uncertainty analysis are carried out.Experimental verification shows that the maximum deviation of the mass measurement accuracy is less than 0.02%,the centroid measurement accuracy in the X direction is±0.15 mm,in the Y direction it is±0.21 mm,and in the Z direction it is±0.19 mm.关键词
大型飞行器/质心测量/坐标转换/多点称重法/重力线Key words
large aircraft/centroid measurement/coordinate transformation/multi-point weighing method/gravity line引用本文复制引用
张晓琳,张煜杨,杨利峰,赵弘治,王梅宝..大型飞行器质量质心测量装置及方法研究[J].测试科学与仪器,2025,16(3):341-349,9.基金项目
This work was supported by National Natural Science Foundation of China-Youth Program(No.62303420),and thank you to all the researchers who participated in this article for their hard work and contribution. （No.62303420）
