在役卸船机钢结构寿命评估

摘要

This paper through the ifnite element analysis of the steel structure of a chemical Changchun unloader, determine the unloader main point of stress concentration and the stress test on site ship unloader's main stress parts of dynamic stress data acquisition, drawing the stress spectrum. Damage accumulation theory Miner rule to determine the remaining life of the equipment of steel structure by fatigue.%文章通过对长春化工的一台抓斗卸船机的钢结构有限元分析，确定卸船机主要应力集中点，并采用现场应力测试方式对卸船机的主要受力部位进行动应力数据采集，绘制应力谱。通过疲劳积累损伤理论Miner法则确定该设备钢结构的剩余寿命。