Reliability Analysis of Superlift Counterweight Structure of Crawler Crane  
Author Jia Li

 
Co-Author(s) Lei Wang; Li Li; Zhibo Liu; Yue Sun

 
Abstract Superlift counterweight structure is a key component which determines the lifting capacity and range of the crawler crane. In this paper, a kind of 3500t crawler crane superlift system is taken as the analysis object. According to the overall design parameters of the crawler crane, the finite element static strength model of superlift counterweight structure is established, the maximum stress and deflection of superlift counterweight structure under dangerous conditions are calculated. A method of reliability analysis is proposed based on the PDS of ANSYS for the superlift counterweight structure. The Monte Carlo sampling method is applied for random input parameters, and the constraint function is established which combine the allowable stress and deflection, numerical analysis is used to get the reliability value. Through the sensitivity analysis, sensitive parameters that largely affect the reliability are obtained, which provides a theoretical reference for improving design and selecting material.

 
Keywords Crane, Superlift, ANSYS, Sampling, Reliability
   
    Article #:  24101
 
Proceedings ISSAT International Conference on Reliability and Quality in Design 2018
August 2-4, 2018 - Toronto, Ontario, Canada