Design and Performance Analysis of Orthogonal Compliant Vector Force Measuring System
Zhang Leile
Li Dong
Zheng Guoliang
Ma Qianli
Abstract：Aiming at the design challenges of multi-branch orthogonal compliant vector force measuring system,a finite element method with beam connection units is proposed,and finite element models of dynamom-etry branches and vector force measuring system are established using this method.Structural characteristics analysis is carried out for six branch forms and lateral layout forms.Based on this,combined with a case study of vector force measuring system,detailed parameter design is conducted using the finite element model,resulting in a compact and minimally coupled structure.Calibration tests for the three load components of the vector force measuring system(axial force,normal force,and pitching moment)are performed,with uncertainties of calibra-tion around 0.5%of the full scale(FS).To address the significant impact of the loading accuracy of high-load vector force measuring systems on calibration measurements,a performance evaluation method based on the ra-tio of load to measurement is proposed.Through this method,the repeatability of the three-component measure-ment of the designed vector force measuring system is around 0.4%FS,and the hysteresis of large-range mea-surement is within 0.7%FS.The research findings have quite reference significance for the structural design and performance analysis of orthogonal vector force measuring systems.
Keywords：Vector force measuring systemFlexure mechanismFlexure hingeFlexure elementVector thrust
Publication Date：2024-06-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：9( 133-141 )