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本文从港口起重机金属结构的故障管理出发,对港口起重机械中带裂纹的结构件的裂纹扩展寿命和巡检周期的预测进行了研究,本文还例证了系统的实际工程应用情况,使得系统从理论和实际两方面都表明它能为企业开展状态维修提供有效、长期的技术保障,从而保证结构件的安全使用并能明显减少维修停产造成的经济损失;并通过其金属结构总图根据专家经验制成“现场实际应力测试指导图”集成到所开发的港机金属结构裂纹诊断系统,改进了诊断系统,完善了系统的使用。
Based on the fault management of the port crane’s metal structure, this paper studies the prediction of the crack propagation life and the inspection cycle of cracked structures in the port crane. The paper also illustrates the practical application of the system, Both in theory and in practice, show that it can provide effective and long-term technical support for enterprises to carry out state maintenance so as to ensure the safe use of structural components and significantly reduce the economic losses caused by maintenance and discontinuation. Based on the master plan of the metal structure, Made of “on-site practical stress test guide map” integrated into the development of port machinery metal structure crack diagnosis system, improved diagnostic system, improve the system.