摘要
为有效地评估港口机械结构件的疲劳强度,基于《起重机设计规范》的疲劳校核方法,结合疲劳累积损伤理论和材料S-N曲线,在有限元模型中施加疲劳当量载荷得到当量应力,代入理论公式得到结构的寿命。通过实例分析,说明该计算方法方便、可靠,可在港机结构设计中推广应用。
The fatigue strength of port machinery structure is evaluated effectively by the method of 'Crane Design Code'. The damage theory, the material S-N curve, and the equivalent fatigue load are applied in the FEM model to obtain equivalent stress. The life-span of port machinery structure is calculated by theoretic formula. More effective and convenient characteristics are featured in this method. Furthermore, related references on design of port machinery structure are popularized.
出处
《港口科技》
2015年第7期33-35,共3页
Port Science & Technology
关键词
港口
港口机械
当量疲劳载荷
当量疲劳应力
疲劳寿命
port
port machinery
equivalent fatigue load
equivalent fatigue stress
fatigue life-span
