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요약정보
基于等效损伤的挖掘机油箱加速振动疲劳试验工况分析研究
Resource Type
Academic Journal
Authors
张少波
;
孙树磊
;
雷丽妃
;
黄海波
Source
工程机械 / Construction Machinery and Equipment
. 50(12):21-27
Subject
挖掘机
油箱
加速振动疲劳
疲劳工况
累计损伤
Language
Chinese
ISSN
1000-1212
Online Access
Find it @ DONGA
초록
疲劳破坏是导致挖掘机等工程机械零部件发生失效的主要原因之一,挖掘机一旦出现疲劳问题,往往会伴随着巨大的安全隐患和财产损失.基于疲劳等效损伤原则,结合用户工况调研、试验场加速度测试,构建了测试工况与用户调研工况的联系,计算了不同工况下的冲击响应谱及疲劳损伤谱等,并进一步计算获得了非强化和强化的合成PSD谱,以及实现基于等效损伤方法的某型挖掘机油箱加速疲劳试验分析方法及流程.计算获得的合成PSD谱,可进一步作为台架试验的输入或用于指导标准试验路面的构建,缩短疲劳试验时间.
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