Error modeling and sensitivity analysis of the multi-crane suspension system
·Design·Calculation·|更新时间:2025-11-26
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Error modeling and sensitivity analysis of the multi-crane suspension system
Journal of Mechanical StrengthVol. 47, Issue 11, Pages: 33-41(2025)
作者机构:
兰州交通大学 机电工程学院,兰州 730070
作者简介:
DING Jiankun, E-mail: 1079439722@qq.com
基金信息:
National Natural Science Foundation of China(51965032);Gansu Provincial Natural Science Foundation Key Project(22JR5RA319);Gansu Province Excellent Doctoral Program(23JRRA842)
ZHAO Zhigang,DING Jiankun,ZHAO Xiangtang,et al. Error modeling and sensitivity analysis of the multi-crane suspension system[J]. Journal of Mechanical Strength,2025,47(11):33-41.
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.
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