Error modeling and sensitivity analysis of the multi-crane suspension system
ZHAO Zhigang
DING Jiankun
ZHAO Xiangtang
WANG Baoxi
GUO Xin
GANG Zheng
Abstract：Geometric parameter errors exist in the structural design,manufacturing,and motion processes of multi-crane suspension systems,which easily lead to insufficient operational accuracy of the system.Taking the suspension system as the research object,a kinematic model of the system was established using the closed-loop vector method.Considering the original errors from kinematic parameters,a pose error model of the suspended object was developed based on the total differential method of matrices.Through sensitivity analysis methods in statistics,the influence of different error sources on the accuracy of the suspended object was investigated.Combined with practical examples,the error impact patterns of the system were simulated,and a method for evaluating the error response of the suspended object was proposed.The obtained results not only provide a basis for precision design,but also offer certain guidance for practical engineering applications.
Keywords：Multi-crane suspension systemKinematic modelError modelSensitivity analysisAccuracy
Publication Date：2025-11-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：9( 33-41 )