摘要
Abstract
Studying the reliability of crane hoisting mechanism and making effective,correct and timely prediction can not only reduce the failure probability,but also play an important role in machine maintenance and accident prevention.The author studied the structural characteristics and working principle of the crane hoisting mechanism,established a dynamic model about the structure research of the crane hoisting mechanism,and calculated the theoretical elastic force and theoretical acceleration of the lifting weight of the 50 t crane during the hoisting braking and descending start-up of the hoisting mechanism.Then,a model for reliability analysis of hoisting mechanism was built based on uncertain factors,and an approximate model of reliability model of hoisting mechanism was built based on adaptive Kriging proxy model,and its reliability was verified.Finally,the simulation results show that the mechanism meets the preset requirements and takes into account the calculation efficiency and accuracy.The adaptive Kriging surrogate model can correctly,timely and effectively analyze and predict the reliability of crane hoisting mechanism,and improve the safety of crane.关键词
50 t起重机/起升机构/可靠性/自适应Kriging代理模型/分析Key words
50t crane/hoisting mechanism/reliability/adaptive Kriging surrogate model/analysis分类
机械制造
