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钢丝绳断丝声发射检测自动诊断算法 总被引:1,自引:0,他引:1
对钢丝绳断丝声发射(AE)检测数据进行多参数自动诊断处理,给出基于统计方法的参数自动选择算法和基于模糊概念的断丝诊断算法。 相似文献
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The acoustic emission(AE)characteristicsfrom the fatigue crack propagation in SM50B-Zcsteel were strongly affected by the environment me-dium.The AE feature from the fatigue process bothin air and in 3.5% NaCl aqueous solution mani-fested a periodicity which indicated the fatigue ex-tension was discontinuous.The fatigue striationand secondary cracking were the main AE sourcesduring the fatigue crack growth in air.In contrast,AE during the fatigue crack propagation in 3.5%NaCl solution was released from the intergranularfracture and quasicleavage cracking. 相似文献
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对疲劳条件下6×19S+FC钢丝绳进行了声发射(AE)测试,结果表明,用AE事件的幅值,持续时间,能量和计数参数可综合表征断丝事件;在钢丝绳失效之前的60%处即能给出失效的AE预警,适当提取钢丝裂纺开裂的AE事件有利表征钢丝绳的总体损伤情况。 相似文献